[Rust Frontend] Add InternLM2 tool parser by willamhou · Pull Request #43481 · vllm-project/vllm

willamhou · 2026-05-23T13:23:15Z

Summary

Port the Python internlm2_tool_parser.py into Rust as
Internlm2ToolParser under rust/src/tool-parser/src/json/internlm2.rs,
reusing the shared JsonToolCallParser core. The parser handles
<|action_start|><|plugin|>{...}<|action_end|> special-token wrapped JSON
tool calls and is auto-routed for model IDs containing internlm2
(matches internlm2-chat-*, internlm2_5-*; explicitly does NOT match
internlm-chat-* v1, internlm3-*, or Intern-S1*).

To keep the four existing JSON parsers (Hermes / Llama / Mistral / Qwen)
behaviorally unchanged, the shared JsonToolCallConfig widens a single
field:

arguments_key: &'static [&'static str] (from &'static str) — a
candidate list tried in order, so InternLM2 accepts either parameters
or arguments. The other four configs (and the in-crate test fixture)
pass a single-element list, preserving their behavior.

Two incidental Python behaviors are intentionally not ported
(documented in internlm2.rs doc comments and the commit message):

the non-streaming action = action[action.find("{"):] prefix-skip —
the streaming path has no equivalent and the model format always emits
<|plugin|>{..., so only whitespace is allowed before {, matching
every other JSON parser in this crate; and
the streaming except Exception: return None truncation-swallow —
Python's non-streaming path raises JSONDecodeError instead, so a
silent drop was never a consistent contract. A truncated call reports
incomplete InternLM2 tool call from finish().

Internlm2ToolParser also overrides preserve_special_tokens() to
true, matching the Python adjust_request(skip_special_tokens=False)
behavior.

Diagnostic improvement: json_arguments_key attaches an Expected
context per candidate key in a loop over the candidate list, so the
multi-candidate error message reads expected `parameters`, `arguments`
for any number of candidates instead of collapsing to just the
parser-level label.

Duplicate-work check

gh pr list --repo vllm-project/vllm --state open --search "internlm2"
— no open Rust port for InternLM2 tool parsing.
gh pr list --repo vllm-project/vllm --state open --search "rust tool parser"
— recent activity is on Hermes/Llama/Mistral/Qwen ports, none overlap.

Known divergences from the Python reference

These are intentionally deferred to follow-up work because they require
non-local changes to the shared JsonToolCallParser core that would
affect Hermes / Llama / Mistral / Qwen too. Documented in
internlm2.rs doc comments and reproducible in tests:

Arguments value type is restricted to JSON objects.
The shared core uses take_json_object, which rejects anything not
starting with {. Python's json.dumps(action_dict.get("parameters", ...)) accepts null, arrays, strings, numbers and round-trips them
verbatim. A model emitting "parameters":null parses in Python and
hard-fails in Rust.
Unknown arguments key hard-errors.
Python falls back to {} via
action_dict.get("parameters", action_dict.get("arguments", {})) when
neither key is present; the Rust header parser raises
parsing failed: invalid InternLM2 for any unrecognized key (e.g. a
"params" typo).
Field order in the tool-call object is fixed.
The header parser requires name to appear before the arguments key.
Python's json.loads + dict.get is order-independent, so
{"parameters":{...},"name":"foo"} parses in Python but fails in Rust.

If reviewers want any of these resolved in this PR rather than as
follow-ups, please flag and I'll redesign the shared header parser to
accommodate.

Intentional divergences (in scope of this PR)

Both are documented in internlm2.rs doc comments and covered by tests:

Parallel tool calls are supported. Python silently drops every
<|action_start|> block after the first; this Rust parser emits all
well-formed blocks with incrementing tool_index. Test:
internlm2_streaming_extracts_multiple_blocks.
<|action_end|> bytes inside JSON string values are preserved.
Python truncates at the first occurrence regardless of JSON context;
this parser scans matched braces and quotes. Test:
internlm2_keeps_end_marker_literal_inside_json_string.

Test plan

Commands run locally:

cargo nextest run -p vllm-tool-parser -p vllm-chat → 405/405 passing
cargo clippy -p vllm-tool-parser -p vllm-chat --all-targets --no-deps -- -D warnings → clean
cargo fmt --all --check → clean

InternLM2 tests added:

internlm2_parse_complete_without_tool_call_keeps_text
internlm2_parse_complete_extracts_parameters_key
internlm2_parse_complete_extracts_arguments_key_fallback
internlm2_accepts_whitespace_after_plugin_marker
internlm2_does_not_validate_or_normalize_arguments
internlm2_streaming_emits_argument_deltas
internlm2_streaming_handles_split_markers
internlm2_streaming_extracts_multiple_blocks
internlm2_keeps_end_marker_literal_inside_json_string
internlm2_finish_errors_on_truncated_tool_call
internlm2_unknown_arguments_key_fails
internlm2_preserve_special_tokens_is_true
Positive routing: internlm2-chat-7b, internlm2_5-7b-chat
Negative routing: internlm-chat-7b, internlm3-8b-instruct,
Intern-S1, Intern-S1-Pro

AI assistance disclosure

This PR was prepared with assistance from Claude (Anthropic) as a code
porting and review aide. The human submitter reviewed every changed
line and ran the test commands above; AI was used for the initial
Python→Rust port, a code review pass that surfaced the divergence list
above, and the doc-comment phrasing.

Co-authored-by: Claude noreply@anthropic.com

github-actions · 2026-05-23T13:23:24Z

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Code Review

This pull request implements the Internlm2ToolParser to support InternLM2 models in the Rust tool-parsing logic. The shared JsonToolCallConfig was extended to support multiple candidate argument keys, silent truncation during finishing, and the ability to skip non-JSON text before the opening brace. Existing parsers for Hermes, Llama, Mistral, and Qwen were updated to match this new configuration structure. Additionally, the ToolParserFactory now includes patterns for InternLM2 model resolution, supported by new unit tests covering both positive and negative matching scenarios. I have no feedback to provide as there were no review comments to assess.

mergify · 2026-05-27T14:13:51Z

This pull request has merge conflicts that must be resolved before it can be
merged. Please rebase the PR, @willamhou.

https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/syncing-a-fork

BugenZhao · 2026-05-28T11:29:02Z

Thanks for the work!

silent_truncation: bool so InternLM2's finish() mirrors Python's
try/except Exception: return None and silently drops a truncated
<|action_start|>... block instead of erroring.

skip_text_before_brace: bool so InternLM2 mirrors Python's
action = action[action.find("{"):] and tolerates thinking-style
preludes (e.g. <|plugin|>Sure!{...}) before the JSON payload.

Would you help me understand whether this tolerance behavior is intentional or accidental? If it's the latter case, then it would be great if we can simplify the changes!

willamhou · 2026-05-28T15:34:41Z

Thanks @BugenZhao — you're right, both are incidental rather than intentional. I traced them through the reference and dropped both:

skip_text_before_brace mirrored the non-streaming action[action.find("{"):], but the streaming path has no equivalent (it would fail on a prelude), no Python test exercises a non-whitespace prelude, and the model format always emits <|plugin|>{.... It was defensive leftover — action.strip() already covers whitespace. Dropped; only whitespace is allowed before { now, like every other parser here.
silent_truncation mirrored the streaming except Exception: return None catch-all, which logs a full traceback — an unexpected-error handler, not a designed path (the real partial-JSON wait is the separate MalformedJSON branch). Python's non-streaming path actually raises JSONDecodeError on truncation; the test suite even xfails this as "raises ... instead of gracefully handling it". So "silent drop" was never a consistent Python contract. Dropped; finish() now returns incomplete InternLM2 tool call like the others.

Net: both flags removed from JsonToolCallConfig (only InternLM2 ever set them), the four other configs lose their false boilerplate, and InternLM2 is now consistent with Hermes/Llama/Mistral/Qwen (−67/+22). cargo nextest run -p vllm-tool-parser -p vllm-chat: 384 passed; clippy/fmt clean.

(AI assistance was used.)

mergify · 2026-05-28T15:38:11Z

This pull request has merge conflicts that must be resolved before it can be
merged. Please rebase the PR, @willamhou.

https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/syncing-a-fork

BugenZhao · 2026-05-29T01:59:21Z

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chatgpt-codex-connector · 2026-05-29T02:03:11Z

+    parser_name: "InternLM2",
+    start_marker: "<|action_start|><|plugin|>",
+    end_marker: "<|action_end|>",
+    marker_whitespace: JsonToolCallWhitespace::Optional,


Skip InternLM prelude text before the JSON payload

For InternLM2 outputs that put any non-whitespace text between <|plugin|> and the tool JSON (the Python parser handles this by slicing from the first {, and the commit message says this Rust port should tolerate thinking-style preludes), this configuration sends the parser directly into tool_call_header_event, which only accepts whitespace followed by {. In that case the parser errors and falls back to raw marker text instead of extracting the tool call, so those otherwise valid InternLM2 responses lose tool-calling.

Useful? React with 👍 / 👎.

BugenZhao

Rest LGTM. Thanks!

BugenZhao · 2026-05-29T02:08:05Z

+    // Each candidate is added as its own `Expected` context so that the
+    // resulting error message enumerates the valid keys ("expected `a`,
+    // expected `b`") even though `StringLiteral` only accepts a single
+    // `&'static str`. Single-candidate configs therefore keep their existing
+    // diagnostics, and multi-candidate configs no longer collapse to just
+    // the parser-level label.
+    match candidates {
+        [single] => key_matches
+            .void()
+            .context(StrContext::Expected(StrContextValue::StringLiteral(single)))
+            .parse_next(input),
+        [first, second] => key_matches
+            .void()
+            .context(StrContext::Expected(StrContextValue::StringLiteral(first)))
+            .context(StrContext::Expected(StrContextValue::StringLiteral(second)))
+            .parse_next(input),
+        _ => key_matches.void().parse_next(input),
+    }


Is it possible to use a for loop here for any number of candidates?

Port the Python `internlm2_tool_parser.py` into Rust, reusing the existing `JsonToolCallParser` core. InternLM2 wraps a single JSON tool call with `<|action_start|><|plugin|>...<|action_end|>` special tokens; its JSON body uses either `parameters` or `arguments` as the arguments key. `JsonToolCallConfig`'s `arguments_key` is widened from `&'static str` to `&'static [&'static str]` (a candidate list tried in order) so InternLM2 can accept either `parameters` or `arguments`. The four existing configs (Hermes / Llama / Mistral / Qwen) and the in-crate test fixture pass a single-element list, preserving their behavior. InternLM2 deliberately does not reproduce two incidental Python behaviors: the non-streaming `action[action.find("{"):]` prefix skip (the streaming path has no equivalent and the model format always emits `<|plugin|>{...`) and the streaming `except Exception: return None` truncation swallow (the non-streaming path raises instead). A truncated call therefore reports `incomplete InternLM2 tool call` from `finish()`, and only whitespace is allowed before the `{`, matching the other JSON parsers in this crate. The new `Internlm2ToolParser` overrides `preserve_special_tokens()` to true, matching the Python `adjust_request(skip_special_tokens= False)` behavior. Diagnostics: `json_arguments_key` attaches each candidate as its own `Expected` context in a loop over the candidate list, so the multi-candidate error message reads `expected \`parameters\`, \`arguments\`` for any number of candidates instead of collapsing to just the parser-level label. Co-authored-by: Claude <noreply@anthropic.com> Signed-off-by: Will.hou <1205157517@qq.com>

willamhou · 2026-05-29T02:26:24Z

Thanks @BugenZhao! Done — json_arguments_key now attaches the Expected contexts in a loop over candidates instead of matching on slice arity:

let start = input.checkpoint();
json_str
    .verify(|key: &String| candidates.contains(&key.as_str()))
    .void()
    .parse_next(input)
    .map_err(|err| {
        err.map(|context_error| {
            candidates.iter().fold(context_error, |context_error, candidate| {
                context_error.add_context(
                    &*input,
                    &start,
                    StrContext::Expected(StrContextValue::StringLiteral(candidate)),
                )
            })
        })
    })

This also closes a latent gap: the old _ => fallback dropped the per-key diagnostics for 3+ candidates, whereas the loop keeps them for any count. The message is unchanged for the 1- and 2-candidate configs (covered by internlm2_unknown_arguments_key_fails → expected `parameters`, `arguments` and the llama single-key test → expected `parameters`). cargo nextest run -p vllm-tool-parser -p vllm-chat: 405 passed; clippy/fmt clean.

Re the Codex P2 about skipping prelude text — that's reading the (now stale) PR description, which still described the dropped skip_text_before_brace flag. As we discussed above, that behavior was incidental and is intentionally not ported: the commit message documents it and the parser errors on a non-whitespace prelude like every other JSON parser in this crate. I've refreshed the PR description to match the current code, so it no longer implies the tolerance.

(AI assistance was used.)

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(#42933) Signed-off-by: Yihuki <wangbovbvb@gmail.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * [KV Connector] Handle Mooncake finish after preemption (#43281) Signed-off-by: Zhewen Li <zhewenli@inferact.ai> Co-authored-by: Zhewen Li <zhewenli@inferact.ai> * [Misc] Print accuracy value for PD tests even on success (#43583) Signed-off-by: NickLucche <nlucches@redhat.com> * [Kernel] Remove NormGateLinear (#43554) Signed-off-by: Jee Jee Li <jeejeelee@inferact.ai> * [XPU] Ensure RNG offset alignment with PyTorch requirements in XPU sampler (#43028) Signed-off-by: chaojun-zhang <chaojun.zhang@intel.com> Signed-off-by: Chaojun Zhang <chaojun.zhang@intel.com> Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * [LoRA] Add one shot triton kernel For MoE LoRA (#42290) Signed-off-by: Jee Jee Li <pandaleefree@gmail.com> * [DeepSeek V4] Move MegaMoE input prep kernel to nvidia/ops (#43632) Signed-off-by: Woosuk Kwon <woosuk@inferact.ai> * [KV Connector][Bugfix] MooncakeStore: don't double-apply Eagle prune in load_mask (#43516) Signed-off-by: Dao Le <daole@inferact.ai> Signed-off-by: Dao Le <Dao007forever@gmail.com> Co-authored-by: Claude <noreply@anthropic.com> * [KV Connector] Propagate MooncakeStore load failures (#42788) Signed-off-by: Dao Le <Dao007forever@gmail.com> * [Bugfix] fix device mismatch in MiniCPM-o-4_5 resampler (#43194) Signed-off-by: Yan Ma <yan.ma@intel.com> * [Frontend] Split the offline inference APIs and utils. (#43553) Signed-off-by: wang.yuqi <yuqi.wang@daocloud.io> Signed-off-by: wang.yuqi <noooop@126.com> Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> * [Bugfix][Model] Fix GPT2ForSequenceClassification sub-module prefix (#43579) Signed-off-by: QingZhou-YangHY <3868850350@qq.com> Co-authored-by: Cyrus Leung <tlleungac@connect.ust.hk> * [GDN] GDN Prefill kernel for SM100 (#43273) Signed-off-by: Thien Tran <gau.nernst@yahoo.com.sg> * [CPU] Enable non-divisible GQA for decode workitems in mixed batches (#43032) Signed-off-by: zhejiangxiaomai <zhenhui.zhao@intel.com> * Upgrade tpu-inference to v0.20.0 (#43394) * Add CuTe DSL sparse compressor support (#43584) Signed-off-by: Yongye Zhu <zyy1102000@gmail.com> Co-authored-by: OpenAI Codex <codex@openai.com> Co-authored-by: Yongye Zhu <zyy1102000@gmail.com> * [chores][log] change registry log from `warning` to `debug` (#43045) Signed-off-by: Hank <hcc.mayday@gmail.com> * [Bugfix] Apply fc_norm in Eagle3DeepseekV2 combine_hidden_states (#43482) Signed-off-by: Yubo Wang <yubowang2019@gmail.com> Co-authored-by: Claude <noreply@anthropic.com> * [KV Transfer] Enable HMA by default for connectors that support it (#41847) Signed-off-by: Ethan Feng <ethan.fengch@gmail.com> * [Misc][Refactor][ROCm] Convert MoRI-related envvars to extra config args (#43303) Signed-off-by: simondanielsson <simon.danielsson99@hotmail.com> Co-authored-by: TJian <tunjian.tan@embeddedllm.com> * [Misc] Support interleaved custom image benchmark datasets (#43636) Signed-off-by: ThibaultCastells <thib.castells@icloud.com> * [Reasoning] [Bugfix] Reject invalid thinking_token_budget values (#43402) Signed-off-by: linzm1007 <linzm1007@126.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * [Model] Use AutoWeightsLoader for InternLM2 (#38278) Signed-off-by: Jesus De Jesus <dejesus.9297@gmail.com> Signed-off-by: javierdejesusda <javier.dejesusj9@gmail.com> Co-authored-by: Cyrus Leung <tlleungac@connect.ust.hk> * [XPU] Fix fused MoE LoRA kernel crash on XPU by using platform-agnos num_compute_units (#43646) Signed-off-by: Chaojun,Zhang <chaojun.zhang@intel.com> * Fix CuPy runtime deps and restore humming (#43530) Signed-off-by: Mohammad Miadh Angkad <176301910+mmangkad@users.noreply.github.com> * [Docs][ROCm] MoRI-IO Connector Usage Guide (#43603) Signed-off-by: simondanielsson <simon.danielsson99@hotmail.com> Signed-off-by: Simon Danielsson <70206058+simondanielsson@users.noreply.github.com> Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> * [ROCm][CI] Extend ROCm quick reduce coverage (#40990) Signed-off-by: Andreas Karatzas <akaratza@amd.com> * [Feat][DSV4] Fuse q pad into deepseek v4 fused kernel (#43162) * [MoE Refactor] Migrate ModelOptMxFp8FusedMoE to oracle (#42768) Signed-off-by: Bill Nell <bnell@redhat.com> Co-authored-by: Robert Shaw <114415538+robertgshaw2-redhat@users.noreply.github.com> * [MoE Refactor] W4a8 int8 oracle (#42789) Signed-off-by: Bill Nell <bnell@redhat.com> Co-authored-by: Robert Shaw <114415538+robertgshaw2-redhat@users.noreply.github.com> * [ROCm] Remove MegaMoE integration in deepseek v4 (#43629) Signed-off-by: Woosuk Kwon <woosuk@inferact.ai> * Add LM head quantization support for ModelOpt (#42124) Signed-off-by: weimingc <17592131+meenchen@users.noreply.github.com> * [Doc] Add line limit to AGENTS.md (#43635) Signed-off-by: Woosuk Kwon <woosuk@inferact.ai> Signed-off-by: Mark McLoughlin <markmc@redhat.com> Co-authored-by: Mark McLoughlin <markmc@redhat.com> * [DSv4] Drop _get_compressed_kv_buffer in DeepseekCompressor (#43690) Signed-off-by: Woosuk Kwon <woosuk@inferact.ai> * [CI] Soft-fail AMD entrypoints mirror tests (#43709) Signed-off-by: Kevin Luu <kevin@inferact.ai> Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * [Kernel] Porting fuse_minimax_qk_norm to manual fusion (#43410) Signed-off-by: Jee Jee Li <jeejeelee@inferact.ai> * [KV Connector] MooncakeStore: drop dead discard_partial_chunks parameter (#43627) Signed-off-by: Zhewen Li <zhewen@inferact.ai> Co-authored-by: Zhewen Li <zhewen@inferact.ai> Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * [Bugfix][V1] Fix TOCTOU race causing intermittent `EADDRINUSE` on multi-API-server DP startup (#42585) Signed-off-by: Vadim Gimpelson <vadim.gimpelson@gmail.com> Signed-off-by: Vadim Gimpelson <156319763+vadiklyutiy@users.noreply.github.com> Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> * [ci] Add arm64 ci image (#41303) Signed-off-by: khluu <khluu000@gmail.com> Signed-off-by: Kevin H. Luu <khluu000@gmail.com> Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * [Bugfix] Split attention groups by num_heads_q for spec-decode drafts (#43543) Signed-off-by: Luciano Martins <lucianommartins@users.noreply.github.com> Co-authored-by: Luciano Martins <lucianommartins@users.noreply.github.com> * [Rust Frontend] Add reasoning/tool parser & renderer roundtrip tests (#43582) Signed-off-by: Bugen Zhao <i@bugenzhao.com> * [ROCm][CI] Fix ROCm multimodal Qwen2.5-VL activation compile and Phi4MM ragged image mask handling (#43647) Signed-off-by: Andreas Karatzas <akaratza@amd.com> * [Perf] Optimize Fp8BlockScaledMMLinearKernel input_scale tensor using new_empty() (#43677) Signed-off-by: Xin Yang <xyangx@amazon.com> * [Attention] Make FlexAttention and FlashAttention use num-blocks first layouts (#42095) Signed-off-by: Lucas Wilkinson <lwilkins@redhat.com> Signed-off-by: Matthew Bonanni <mbonanni@redhat.com> Co-authored-by: Matthew Bonanni <mbonanni@redhat.com> Co-authored-by: Nicolò Lucchesi <nlucches@redhat.com> * [MLA][Attention] Add OOT MLA prefill backend registration mechanism (#43325) Signed-off-by: Matthew Bonanni <mbonanni@redhat.com> * [Deprecation] Deprecate functions as scheduled for v0.21.0 (#43358) Signed-off-by: yewentao256 <zhyanwentao@126.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * [DSv4] Refactor compressor & Fix ROCm compatibility (#43710) Signed-off-by: Woosuk Kwon <woosuk@inferact.ai> * Fix test_aot_compile for torch 2.12 (#43695) Signed-off-by: Angela Yi <yiangela7@gmail.com> * [KVConnector][Mooncake] Wire reset_cache cascade end-to-end (#42694) Signed-off-by: aoshen524 <aoshen524@gmail.com> Signed-off-by: Ao Shen <aoshen@inferact.ai> Co-authored-by: aoshen524 <aoshen524@gmail.com> Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * [ROCm][Perf] Expose AITER MoE sorting dispatch policy via env var (#39177) Signed-off-by: nholmber <nholmber@users.noreply.github.com> * [MRV2][BugFix] Fix KV connector handling in spec decode case (#43719) Signed-off-by: Nick Hill <nickhill123@gmail.com> Co-authored-by: Wentao Ye <44945378+yewentao256@users.noreply.github.com> * [Frontend] Add MiniCPM5 XML tool call parser (#43175) Signed-off-by: zhangtao <zhangtao2@modelbest.cn> Signed-off-by: zhangtao2 <zhangtao2@modelbest.cn> Co-authored-by: zhangtao <zhangtao2@modelbest.cn> Co-authored-by: Chauncey <chaunceyjiang@gmail.com> * [ROCm][GPT-OSS] Avoid repeated compile-time `cos_sin_cache.to(bf16)` casts in rotary path (#42833) Signed-off-by: Aakif Nawaz <aakif.nawaz@amd.com> * [Doc] Add Ascend NPU tab to the quickstart installation guide (#43550) Signed-off-by: Aditya Singh <adisin650@gmail.com> Co-authored-by: Claude <noreply@anthropic.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * [Rust Frontend] Align tool parser fallback behavior between streaming & non-streaming paths (#43662) Signed-off-by: Bugen Zhao <i@bugenzhao.com> * [Docs] Fix MLA prefill backend default docs (#43697) Signed-off-by: Mohammad Miadh Angkad <176301910+mmangkad@users.noreply.github.com> * [Kernel] Enable TritonW4A16LinearKernel as CUDA fallback for non-Marlin-aligned W4A16 shapes (#43731) Signed-off-by: Luciano Martins <lucianommartins@users.noreply.github.com> Co-authored-by: Luciano Martins <lucianommartins@users.noreply.github.com> * [Bugfix] Map reasoning_effort to enable_thinking in chat template kwargs (#43401) Signed-off-by: Ashwin Giridharan <girida@amazon.com> Signed-off-by: Chauncey <chaunceyjiang@gmail.com> Co-authored-by: Chauncey <chaunceyjiang@gmail.com> * [misc] Bump cutedsl version to 4.5.2 (#43745) Signed-off-by: Yongye Zhu <zyy1102000@gmail.com> * [BugFix] HFValidationError with cloud storage URIs when HF_HUB_OFFLINE=1 (#39155) Signed-off-by: Injae Ryou <injaeryou@gmail.com> * [Docs] Fix the duplicate doc icon issue (#43546) Signed-off-by: chunyang.wen <chunyang.wen@gmail.com> * Fix early CUDA init (#43791) Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com> * [ROCm] mori: add InterNodeV1LL inter-node kernel selection via VLLM_MORI_INTERNODE_KERNEL (#41751) Signed-off-by: jatseng-ai <jatseng@amd.com> * [8/n] Migrate merge_attn_states, mamba, sampler to torch stable ABI (continued) (#43361) Signed-off-by: Mikayla Gawarecki <mikaylagawarecki@gmail.com> Signed-off-by: Chris Leonard <chleonar@redhat.com> Co-authored-by: Mikayla Gawarecki <mikaylagawarecki@gmail.com> Co-authored-by: Shengqi Chen <harry-chen@outlook.com> * [Quantization] Fix Humming RoutedExperts import (#43540) Signed-off-by: Minh Vu <vuhoangminh97@gmail.com> Co-authored-by: Wentao Ye <44945378+yewentao256@users.noreply.github.com> * Remove Transformers forward/backward compatibility tests (#43785) Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com> * Validate against some config fields being set to 0 (#43794) Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com> * [Bugfix][DFlash]allocate the proper number of lookahead slots (#43733) Signed-off-by: Benjamin Chislett <bchislett@nvidia.com> Signed-off-by: Benjamin Chislett <chislett.ben@gmail.com> Co-authored-by: Nicolò Lucchesi <nicolo.lucchesi@gmail.com> * Fix Qwen3-VL and Qwen3-omni-thinker accuracy degradation from deepstack inputs under torch.compile (#43617) Signed-off-by: Dakai An <dakaian108@gmail.com> * Add @AndreasKaratzas to CODEOWNERS (#43740) Signed-off-by: Andreas Karatzas <akaratza@amd.com> * [Bugfix][Kernel] TRTLLM NVFP4 MoE chunking (#43599) Signed-off-by: amitz-nv <203509407+amitz-nv@users.noreply.github.com> * [ModelRunnerV2][Hybrid model] Support kernel block size in hybrid model (#38831) Signed-off-by: MengqingCao <cmq0113@163.com> Signed-off-by: Nick Hill <nickhill123@gmail.com> Signed-off-by: Mengqing Cao <cmq0113@163.com> Co-authored-by: Nick Hill <nickhill123@gmail.com> * [Rust Frontend] Introduce mock engine for benchmark baseline (#43469) Signed-off-by: Bugen Zhao <i@bugenzhao.com> * Fix RunAI streamer tensor buffer reuse during weight loading (#43464) Signed-off-by: bbartels <benjamin@bartels.dev> * [MoE] Remove inplace fused experts mechanism (#43727) Signed-off-by: Yongye Zhu <zyy1102000@gmail.com> * [Misc][Rocm] Remove redundant `AiterUnifiedAttentionBackend` block size log (#43664) Signed-off-by: NickLucche <nlucches@redhat.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * [ROCm][CI] Stabilize Cargo cache and pre-test image checks (#43815) Signed-off-by: Andreas Karatzas <akaratza@amd.com> * fix: parse Qwen3 XML JSON arguments first (#43243) Signed-off-by: Yufeng He <40085740+he-yufeng@users.noreply.github.com> Co-authored-by: Flora Feng <4florafeng@gmail.com> * [Bugfix] Pass `routed_scaling_factor` to FlashInfer TRTLLM BF16 MoE (#43769) * [BugFix] Fix blocked reasoning parsing with MRV2 (#43808) Signed-off-by: Nick Hill <nickhill123@gmail.com> * [Bugfix][Frontend] streaming tool-call serializer drops first args chunk when name and args share a DeltaMessage (#42683) Signed-off-by: ignaciosica <mignacio.sica@gmail.com> Signed-off-by: sfeng33 <4florafeng@gmail.com> Co-authored-by: sfeng33 <4florafeng@gmail.com> * minor docs: fix incorrect example path (#43830) Signed-off-by: JINO-ROHIT <find.jinorohit@gmail.com> * [ROCm][DSV4] Enable Tilelang MHC replacing torch/triton mhc (#43679) Signed-off-by: tjtanaa <tunjian.tan@embeddedllm.com> * change name of fs_python secondary tier to fs. (#43600) Signed-off-by: Rotem Shavitt <rshavitt@gmail.com> * [BugFix] Fix hard-coded timeout for multi-API-server startup (#43768) Signed-off-by: Vadim Gimpelson <vadim.gimpelson@gmail.com> Co-authored-by: Nick Hill <nickhill123@gmail.com> * [Kernel] Marlin MoE: include SM 12.x in default arch list (#40923) Signed-off-by: Tony Liu <tonyliu0512@gmail.com> Co-authored-by: Tony Liu <tonyliu0512@gmail.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> Co-authored-by: Shengqi Chen <harry-chen@outlook.com> * [DSV4] Remove AMD/XPU path in deepseek_v4/nvidia (#43829) Signed-off-by: Woosuk Kwon <woosuk@inferact.ai> * Restore `Literal` for `WeightTransferConfig.backend` (#43183) Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com> * [Bugfix] Stream DeepSeek DSML tool-call argument deltas incrementally (#42879) Signed-off-by: QwertyJack <7554089+QwertyJack@users.noreply.github.com> Co-authored-by: QwertyJack <7554089+QwertyJack@users.noreply.github.com> Co-authored-by: Chauncey <chaunceyjiang@gmail.com> * [ROCm][CI] Move workload from MI300 to MI325 (#43824) Signed-off-by: Andreas Karatzas <akaratza@amd.com> * [Feature] Add support for timed trace replay in `vllm bench serve` to replay Moonshot and Alibaba workload traces (#39795) Signed-off-by: Animesh Trivedi <Animesh.Trivedi@ibm.com> * [UX] Increase DP Coordinator startup timeout from 30s to 120s (#42343) Signed-off-by: wzhao18 <wzhao18.sz@gmail.com> * [Model][Bugfix] Rename weight_mapper to hf_to_vllm_mapper in LlamaNemotronVL pooling models (#43581) Signed-off-by: Jakub Zakrzewski <jzakrzewski@nvidia.com> Co-authored-by: opencode <noreply@opencode.ai> Co-authored-by: tomeras91 <57313761+tomeras91@users.noreply.github.com> * [Bugfix][ROCm] Fix Accuracy Drop in Sparse Indexer on gfx950 (#43781) Signed-off-by: tjtanaa <tunjian.tan@embeddedllm.com> Signed-off-by: vllmellm <vllm.ellm@embeddedllm.com> Signed-off-by: kliuae <kuanfu.liu@embeddedllm.com> Co-authored-by: tjtanaa <tunjian.tan@embeddedllm.com> Co-authored-by: vllmellm <vllm.ellm@embeddedllm.com> * [Bugfix] Fix HyperCLOVAX CI failure after upstream removed remote code (#43860) Signed-off-by: Kevin Luu <kevin@inferact.ai> Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * [CI] Auto-apply `rust` label to relevant PRs (#43866) Signed-off-by: Bugen Zhao <i@bugenzhao.com> * [Feature] Add structured output and effort support to Anthropic Messages API (#42396) Signed-off-by: chaunceyjiang <chaunceyjiang@gmail.com> * Log dummy DP step in iteration details (#41406) Signed-off-by: Vadim Gimpelson <vadim.gimpelson@gmail.com> Signed-off-by: Vadim Gimpelson <156319763+vadiklyutiy@users.noreply.github.com> * [EC Connector] Add shutdown API to EC Connector. (#42423) Signed-off-by: omerpaz95 <omerpaz95@gmail.com> * Fix `OlmoHybridForCausalLM` not initialising (#43846) Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * [BUGFIX] Multimodal benchmark with MistralTokenizer (#42965) Signed-off-by: juliendenize <julien.denize@mistral.ai> Signed-off-by: Julien Denize <40604584+juliendenize@users.noreply.github.com> * [Perf] Optimize moe permute by pre-allocate buffer, 9~14% kernel performance improvement (#43014) Signed-off-by: yewentao256 <zhyanwentao@126.com> * [Perf][KDA] Fuse gate softplus, chunk-local cumsum, and RCP_LN2 scaling (#43667) Signed-off-by: haojiangzheng <justineric096@gmail.com> Co-authored-by: haojiangzheng <justineric096@gmail.com> * Add token-offset based selective offload in OffloadConnector (#39983) Signed-off-by: Angelo Ruocco <ang@zurich.ibm.com> Co-authored-by: Or Ozeri <or@ozery.com> * [Model Refactoring] Remove torch compile dependency in DSv4 (#43746) Signed-off-by: Woosuk Kwon <woosuk@inferact.ai> * [Bugfix][ROCm] Resolve MoRI connector hangs at high concurrency (#40344) Signed-off-by: simondanielsson <simon.danielsson99@hotmail.com> * [CPU] Migrate cpu_awq into awq_marlin (#43841) Signed-off-by: jiang1.li <jiang1.li@intel.com> * [Rust Frontend] Add `hy_v3` tool parser (#43872) Signed-off-by: Bugen Zhao <i@bugenzhao.com> * [Rust Frontend] Reduce Gemma4 tool parser args scan complexity (#43850) Signed-off-by: Bugen Zhao <i@bugenzhao.com> * [rust] fix: aggregate `is_sleeping` and `reset_prefix_cache` across DP engines (#43429) Signed-off-by: Will.hou <1205157517@qq.com> Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * [Bug] Fix `tests/distributed/test_elastic_ep.py - assert False` (#43813) Signed-off-by: yewentao256 <zhyanwentao@126.com> * [Perf] Add do_not_specialize to Mamba SSD chunk kernels (#43803) Signed-off-by: Majid Taheri Andani <tahemaji@amazon.com> Co-authored-by: Majid Taheri Andani <tahemaji@amazon.com> * [Bugfix] Exclude Ray DP from #42585's deferred port allocation (#43864) Signed-off-by: Vadim Gimpelson <vadim.gimpelson@gmail.com> * [KV Offload] Rename `SecondaryTierManager.get_finished()` to `get_finished_jobs()` (#43870) Signed-off-by: Ronen Schaffer <ronen.schaffer@ibm.com> * [ROCm][Perf] Support N=5 in wvSplitK skinny GEMM kernels for speculative decoding (#40687) Signed-off-by: Matthias Gehre <matthias.gehre@amd.com> * [XPU][MoE] Add WNA16 oracle backend for GPTQ sym-int4 (xpu_fused_moe) (#41426) Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com> Co-authored-by: Kunshang Ji <kunshang.ji@intel.com> * [ROCm] Bump ROCm to 7.2.3 (#43136) Signed-off-by: Micah Williamson <micah.williamson@amd.com> * Add Cosmos3 Reasoner model (#43356) Signed-off-by: Maciej Bala <mbala@nvidia.com> Signed-off-by: MaciejBalaNV <mbala@nvidia.com> Co-authored-by: Isotr0py <mozf@mail2.sysu.edu.cn> Co-authored-by: Isotr0py <2037008807@qq.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> Co-authored-by: Roger Wang <hey@rogerw.io> * [Rust Frontend] Optimize multimodal prompt expansion (#43670) Signed-off-by: RickyChen / 陳昭儒 <ricky.chen@infinirc.com> * Allow native KV cache dtype in Triton cache update (#43330) Signed-off-by: Michael Gschwind <mgschwind@nvidia.com> Co-authored-by: Michael Gschwind <mgschwind@nvidia.com> * [Attention][AMD] Standardize kv layout to blocks first for AMD (#43660) Signed-off-by: NickLucche <nlucches@redhat.com> * [ROCm] Enable the aiter top-k/top-p sampler by default (#43331) Signed-off-by: John Qin <yanyuan.qin@amd.com> Co-authored-by: TJian <tunjian.tan@embeddedllm.com> * [MM][CG] Avoid over-padding Qwen2.5-VL encoder cudagraph window metadata (#42796) Signed-off-by: Hua Huang <huah@nvidia.com> * Deprecate `JAISLMHeadModel` (#43784) Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com> * [Feat] Add support for per GPU worker RDMA NIC selection (#42083) Signed-off-by: Raj Joshi <rajjoshi@redhat.com> Co-authored-by: Cursor <cursoragent@cursor.com> * [Core] Cleanup KVConnector handling with PP + fix MRV2 (#43732) Signed-off-by: Nick Hill <nickhill123@gmail.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * [KV Offload] Add per-request offloading policy via `on_new_request` lifecycle hook (#43205) Signed-off-by: Ronen Schaffer <ronen.schaffer@ibm.com> Co-authored-by: Or Ozeri <or@ozery.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * [Model Refactoring] Remove unncessary torch op registration for DSv4 (#43891) Signed-off-by: Woosuk Kwon <woosuk@inferact.ai> * [Spec Decode] Allow causal DFlash (#43445) * Refactor output filename handling in ci-fetch-log.sh (#43901) Signed-off-by: Michael Goin <mgoin64@gmail.com> * [AMD][CI][BugFix] Fix Distributed Compile Unit Tests (2xH100-2xMI300) group (#43120) Signed-off-by: Randall Smith <Randall.Smith@amd.com> * fix(frontend): Add multimodal placeholders to Gemma4 tool message template (#41459) Signed-off-by: Harshal Janjani <harshaljanjani@gmail.com> Co-authored-by: Ben Browning <bbrownin@redhat.com> * [CI] Enable prefix caching in BFCL benchmark (#43925) Signed-off-by: Yifan Zong <yzong@redhat.com> * [Model]Support Step-3.7-Flash (#43859) Signed-off-by: luotingdan <luotingdan@stepfun.com> Signed-off-by: Isotr0py <Isotr0py@outlook.com> Signed-off-by: Jee Jee Li <jeejeelee@inferact.ai> Co-authored-by: luotingdan <luotingdan@stepfun.com> Co-authored-by: Isotr0py <Isotr0py@outlook.com> Co-authored-by: Yu Huang <yuhuang@nvidia.com> Co-authored-by: Jee Jee Li <jeejeelee@inferact.ai> * [Rust Frontend] Add `/version` endpoint using engine-reported value (#43854) Signed-off-by: Bugen Zhao <i@bugenzhao.com> * [Misc][NUMA] Auto-bind to PCT priority cores on DGX B300 + widen EngineCore across shard NUMA nodes (#43270) Signed-off-by: Vadim Gimpelson <vadim.gimpelson@gmail.com> Co-authored-by: Cursor <noreply@cursor.com> * [DSv4] Move mHC tilelang kernels & Don't use CustomOP in dsv4/nvidia (#43905) Signed-off-by: Woosuk Kwon <woosuk@inferact.ai> * [feat] add GlmgaProcessor specific logits in `glm4_1v.py` (#43575) Signed-off-by: JaredforReal <w13431838023@gmail.com> Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn> Signed-off-by: Isotr0py <Isotr0py@outlook.com> Co-authored-by: Isotr0py <mozf@mail2.sysu.edu.cn> Co-authored-by: Isotr0py <Isotr0py@outlook.com> * Adjust design around encoder_cudagraph_forward (#42288) Signed-off-by: Weida Hong <wdhongtw@google.com> * [XPU] add scale transpose to prepare_fp8_moe_layer_for_xpu and bump up kernels (#43277) Signed-off-by: mayuyuace <qiming1.zhang@intel.com> Co-authored-by: Kunshang Ji <kunshang.ji@intel.com> * [kv_offload] Skip decode-phase blocks in CPU offload (#43797) Signed-off-by: Itay Etelis <itay.etelis@ibm.com> Co-authored-by: Itay Etelis <itay.etelis@ibm.com> * [Refactor] Remove dead code (#43234) Signed-off-by: yewentao256 <zhyanwentao@126.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * [9/n] Migrate attention and cache kernels to torch stable ABI (continued) (#43717) Signed-off-by: Chris Leonard <chleonar@redhat.com> Signed-off-by: Mikayla Gawarecki <mikaylagawarecki@gmail.com> Co-authored-by: Mikayla Gawarecki <mikaylagawarecki@gmail.com> Co-authored-by: Shengqi Chen <harry-chen@outlook.com> * [CI] Separate non-root smoke tests from image build step (#43712) Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * [XPU] add gelu_tanh to xpu moe backend supported activations (#42822) Signed-off-by: yintong-lu <yintong.lu@intel.com> Co-authored-by: Kunshang Ji <kunshang.ji@intel.com> * [CPU Backend] CPU top-k and top-p sampling kernels using Triton (#43633) Signed-off-by: Li, Tianmu <tianmu.li@intel.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * [ROCm][DSv4] Remove device pipeline stall in sparse attention (#43898) Signed-off-by: kliuae <kuanfu.liu@embeddedllm.com> * [Frontend]Responses API supports chat_template_kwargs (#43761) Signed-off-by: chaunceyjiang <chaunceyjiang@gmail.com> * [ROCm][CI] Fix AITER unified attention for encoder-decoder cross-attention (#43945) Signed-off-by: Andreas Karatzas <akaratza@amd.com> * [XPU] fix xpu install document triton-xpu version (#43947) Signed-off-by: Kunshang Ji <kunshang.ji@intel.com> * [CI][ROCm] Don't skip MoRI-IO Connector tests (#43703) Signed-off-by: simondanielsson <simon.danielsson99@hotmail.com> * [XPU] support MTP of gdn attention (#43565) Signed-off-by: mayuyuace <qiming1.zhang@intel.com> Co-authored-by: Kunshang Ji <kunshang.ji@intel.com> * [CI] Nixl+SimpleCPUOffloadingConnector unit tests (#43871) Signed-off-by: NickLucche <nlucches@redhat.com> * [Bugfix] Fix Step3 pipeline parallel KeyError for residual tensor (#37622) Co-authored-by: Jee Jee Li <pandaleefree@gmail.com> * [Kernel][ROCm] Native W4A16 kernel for AMD RDNA3 (gfx1100) — fp16 + bf16 (#41394) Signed-off-by: JartX <sagformas@epdcenter.es> * [Bugfix] [ROCm] [DSV4] Fix AITER MXFP4 MoE weight loading and shuffle… (#42595) Co-authored-by: MHYangAMD <MHYangAMD@users.noreply.github.com> * [ROCm][Perf] DSv3.2 MI355X TP4 decode-step orchestration cleanup (3 micro-opts) (#42982) Signed-off-by: Frida Andersson <fanderss@amd.com> Co-authored-by: Cursor <cursoragent@cursor.com> * [Bugfix] Corrupted MLA + linear attention (#43961) Signed-off-by: Thien Tran <gau.nernst@yahoo.com.sg> * Skip docs build if PR doesn't affect docs (#43972) Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com> * [Bugfix][CPU] Remove invalid extra deps (#43977) Signed-off-by: jiang1.li <jiang1.li@intel.com> * Add vLLM library info to Hugging Face Hub requests (#43857) Signed-off-by: Wauplin <lucainp@gmail.com> Signed-off-by: Lucain Pouget <lucain@huggingface.co> Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com> * docs: clarify ITL acronym in optimization docs (#43922) Signed-off-by: chunyang.wen <chunyang.wen@gmail.com> * [Misc] added unit tests for the core pooling methods (#43818) Signed-off-by: Taneem Ibrahim <taneem.ibrahim@gmail.com> Co-authored-by: Wentao Ye <44945378+yewentao256@users.noreply.github.com> * [Bugfix] Disable allreduce_rms_fusion when pipeline_parallel_size > 1 (#43616) Signed-off-by: zixi-qi <zixi@inferact.ai> Co-authored-by: Claude <noreply@anthropic.com> * [MoE Refactor] WNA16 MoE backend selection into oracle module (#42553) Signed-off-by: Bill Nell <bnell@redhat.com> Co-authored-by: Claude <noreply@anthropic.com> * [EPLB] Make async EPLB default (#43219) Signed-off-by: Markov Ilya <markovilya19@gmail.com> Co-authored-by: Markov Ilya <markovilya19@gmail.com> Co-authored-by: Tyler Michael Smith <tyler@neuralmagic.com> * [Bugfix] Use storage_block_size in KV cache reshape for compressed specs (DeepSeek V4) (#43988) Signed-off-by: zixi-qi <zixi@inferact.ai> Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com> * [Bugfix] Fix Ray placement group allocation with grouped nodes (#43998) Signed-off-by: <conway.zhu@cohere.com> Signed-off-by: root <conway.zhu@cohere.com> * [Bug] Fix torch device issue for MOE permute (#44005) Signed-off-by: yewentao256 <zhyanwentao@126.com> * [CI] Make Model Executor test hangs fail fast with a traceback (#43971) Signed-off-by: khluu <khluu000@gmail.com> Co-authored-by: Claude <noreply@anthropic.com> * [CI] Remove redundant test_chat_with_tool_reasoning.py (#44011) Signed-off-by: sfeng33 <4florafeng@gmail.com> * Add @khluu to CODEOWNERS (#44019) Signed-off-by: Kevin H. Luu <khluu000@gmail.com> * [Feature] SSL support for dp supervisor (#43688) Signed-off-by: yewentao256 <zhyanwentao@126.com> * [Metrics] Exclude KV transfer tokens from iteration_tokens_total (#43346) Signed-off-by: Tyler Michael Smith <tlrmchlsmth@gmail.com> Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * [Fronten] Clean up stop_token_ids override for Harmony (#44009) Signed-off-by: Yifan Zong <yzong@redhat.com> * [MoE Refactor] Migrate MoeWNA16Method quantization to MK oracle (#42647) Signed-off-by: Bill Nell <bnell@redhat.com> Co-authored-by: Claude <noreply@anthropic.com> * [MoE Refactor] Remove supports_expert_map (#43108) Signed-off-by: Bill Nell <bnell@redhat.com> * [CI] Remove duplicate Harmony test coverage (#44023) Signed-off-by: sfeng33 <4florafeng@gmail.com> * [CI] Fix smoke test step key to bypass block gate (#43974) Signed-off-by: khluu <khluu000@gmail.com> Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com> * Revert "[MoE Refactor] Migrate MoeWNA16Method quantization to MK orac… (#44033) Signed-off-by: Bill Nell <bnell@redhat.com> * [PERF]MiniMax-M2 gate kernel (#38445) Signed-off-by: Jee Jee Li <pandaleefree@gmail.com> Signed-off-by: qianlihuang <91178480+qianlihuang@users.noreply.github.com> Co-authored-by: Yiliu Dong <91178480+qianlihuang@users.noreply.github.com> * offload prompt_embeds decode in render_prompts_async to avoid blocking (#43792) Signed-off-by: Gagan Dhakrey <gagandhakrey@gmail.com> * [Refactor] Remove dead current_tool_name_sent assignments from tool parsers (#43997) Signed-off-by: sfeng33 <4florafeng@gmail.com> * [ROCm][CI] Fix failure in the Phi3V pooling test (#44028) Signed-off-by: Andreas Karatzas <akaratza@amd.com> * [ROCm] cmake: support PYTORCH_FOUND_HIP for torch 2.13 native HIP language support (#43881) Signed-off-by: nemanjaudovic <nudovic@amd.com> Co-authored-by: Shengqi Chen <harry-chen@outlook.com> * [BugFix][Platform] Fix import vllm.platforms.rocm error on non-CUDA test_gpt_oss.py (#43571) Signed-off-by: Ma, Liangliang <liangliang.ma@intel.com> Co-authored-by: Kunshang Ji <kunshang.ji@intel.com> * [Bugfix] Fix RMSNorm kernels to multiply in weight's native dtype (#42379) Signed-off-by: Lanze Liu <lanzetech@gmail.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * [ROCm] Add attention sink support to AITer flash attention backend (#43817) Signed-off-by: Xiaoran Chen <xiaoran@fb.com> Co-authored-by: Xiaoran Chen <xiaoran@fb.com> * [Governance] Add @BugenZhao as Rust frontend code owner (#44047) Signed-off-by: Bugen Zhao <i@bugenzhao.com> * [Bug] Fix gemma4 MTP IMA issue when TP>1, `CUDA error: an illegal memory access was encountered` (#43909) Signed-off-by: yewentao256 <zhyanwentao@126.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * [MRV2] Support breakable CUDA graph (#44050) Signed-off-by: Woosuk Kwon <woosuk@inferact.ai> * [CPU][Zen] Route W8A8 and W4A16 linear inference through zentorch on AMD Zen CPUs (#41813) Signed-off-by: R <Ganesh.R@amd.com> Signed-off-by: Harshal Adhav <harshal.adhav@amd.com> Signed-off-by: Aakar Dwivedi <aadwived@amd.com> Co-authored-by: R <Ganesh.R@amd.com> Co-authored-by: Harshal Adhav <harshal.adhav@amd.com> Co-authored-by: Cursor <cursoragent@cursor.com> Co-authored-by: Michael Goin <mgoin64@gmail.com> * [CI/Build] Enable Step3p7ForConditionalGeneration testing (#43956) Signed-off-by: Jee Jee Li <jeejeelee@inferact.ai> * docs: fix MLA attention docstring examples (#44118) Co-authored-by: nightcityblade <nightcityblade@gmail.com> * [Misc] Use VLLMValidationError consistently in chat completion and completion protocol validators (#36254) Signed-off-by: umut-polat <52835619+umut-polat@users.noreply.github.com> * [MRV2] Remove Eagle's dedicated CUDA graph pool (#44078) Signed-off-by: Lucas Wilkinson <lwilkins@redhat.com> * [BugFix] Fix `_has_module` to verify native deps via trial import (#44035) Signed-off-by: esmeetu <jasonailu87@gmail.com> Signed-off-by: Jeffrey Wang <jeffreywang@anyscale.com> Signed-off-by: Nick Hill <nickhill123@gmail.com> Co-authored-by: esmeetu <jasonailu87@gmail.com> Co-authored-by: Nick Hill <nickhill123@gmail.com> * [Docs] Replace broken video url in examples (#44159) Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn> * [CPU][RISC-V] Add missing RVV cpu_types helpers for WNA16 (#42730) Signed-off-by: wcy <233313160abc@gmail.com> Co-authored-by: Li, Jiang <jiang1.li@intel.com> * fix: glm5.1 pp model loading (#42944) Signed-off-by: UranusSeven <109661872+UranusSeven@users.noreply.github.com> * [Frontend] Resettle generative scoring entrypoint. (#44153) Signed-off-by: wang.yuqi <yuqi.wang@daocloud.io> * [Rust Frontend] Add InternLM2 tool parser (#43481) Signed-off-by: Will.hou <1205157517@qq.com> Co-authored-by: Claude <noreply@anthropic.com> Co-authored-by: Bugen Zhao <i@bugenzhao.com> * [Bugfix] fix wrong partial_rotary_factor calculation for bailing_moe model. (#43770) Signed-off-by: zzt <zengzetang.zzt@antgroup.com> Co-authored-by: Jiangyun Zhu <riverclouds.zhu@qq.com> * [XPU][CI] Fix test_audio_in_video flake by using module-scoped server fixture (#44146) Signed-off-by: Chaojun Zhang <chaojun.zhang@intel.com> * [Perf] Optimize cutlass fp8 scaled mm bypassing padding, 20% kernel performance improvement (#43706) Signed-off-by: yewentao256 <zhyanwentao@126.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> * [Feature] Add support for JetBrains' Mellum v2 code generation model (#43992) Signed-off-by: Madeesh Kannan <madeeswaran.kannan@jetbrains.com> Co-authored-by: Robert Shaw <114415538+robertgshaw2-redhat@users.noreply.github.com> * [Kernel][DSv4] Optimize sparse FP8 compressor kernels (#44161) Signed-off-by: Yongye Zhu <zyy1102000@gmail.com> * [ROCm][CI] Fix and stabilize EAGLE3 acceptance tests (#41294) Signed-off-by: Andreas Karatzas <akaratza@amd.com> Signed-off-by: Micah Williamson <micah.williamson@amd.com> Co-authored-by: Micah Williamson <micah.williamson@amd.com> * [Rust Frontend] Support streaming `generate` endpoint (#43779) Signed-off-by: xunzhuo <xunzhuo@vllm-semantic-router.ai> Co-authored-by: Bugen Zhao <i@bugenzhao.com> * [Frontend][Core] Add sparse NCCL weight transfer support for in-place updates (#40096) Signed-off-by: Siddharth Bedekar <bedeksid@gmail.com> Co-authored-by: OpenAI Codex <codex@openai.com> * [BugFix][CI] Fix added `_has_module` tests (#44248) Signed-off-by: Nick Hill <nickhill123@gmail.com> * [Test][BugFix] Fix double-BOS in PD+specdec acceptance test (#44234) Signed-off-by: Nick Hill <nickhill123@gmail.com> * [DSV4] Remove unncessary classes & functions (#44246) Signed-off-by: Woosuk Kwon <woosuk@inferact.ai> * [ROCm][CI] Skip unbacked dynamic shapes tests on PyTorch < 2.11 (#44256) Signed-off-by: JartX <sagformas@epdcenter.es> * [DSV4] Refactor RoPE initialization (#44262) Signed-off-by: Woosuk Kwon <woosuk@inferact.ai> * [Bugfix][Mooncake] Release GPU pin on failed store in MooncakeStoreConnector (#43742) Signed-off-by: Dao Le <Dao007forever@gmail.com> Co-authored-by: Claude <noreply@anthropic.com> * [ROCm] Upgrade AITER to v0.1.13.post1 (#44265) Signed-off-by: Micah Williamson <micah.williamson@amd.com> * [Bugfix][CI] Normalize NIXL connector CUDA wheel installs (#44266) Signed-off-by: Alec Flowers <aflowers@nvidia.com> * [Refactor] Move unstreamed tool-arg flush from serving layer to parser (#44017) Signed-off-by: sfeng33 <4florafeng@gmail.com> * [CI] Stabilize OpenAI schema fuzzing for malformed structural tags (#44131) Signed-off-by: Andreas Karatzas <akaratza@amd.com> * [BugFix] Fix TypeError in MiniCPM-O audio feature unpadding (#38053) Signed-off-by: Krishna Chaitanya Balusu <krishnabkc15@gmail.com> Signed-off-by: wjinxu <1299461899@qq.com> Signed-off-by: Kc Balusu <kcbalusu@users.noreply.github.com> Co-authored-by: wjinxu <1299461899@qq.com> Co-authored-by: Cursor <cursoragent@cursor.com> Co-authored-by: Cyrus Leung <tlleungac@connect.ust.hk> Co-authored-by: Kc Balusu <kcbalusu@users.noreply.github.com> * [BugFix][kv_offload]: Prevent offloading stale sliding window blocks (#42959) Signed-off-by: Or Ozeri <oro@il.ibm.com> * [XPU][Bugfix] Fix per_token_group_fp8_quant missing dummy args on XPU (#43930) Signed-off-by: Chaojun,Zhang <chaojun.zhang@intel.com> Co-authored-by: Kunshang Ji <kunshang.ji@intel.com> * [MM][CG] Profile encoder CUDA graph pool memory (#41714) Signed-off-by: JooHo Lee <jooho414@gmail.com> * [Bugfix] Convert Gemma4-MM ViT linear layers to vllm native impl (#43798) Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn> Co-authored-by: ZiTian Zhao <zitian.zhao@tencentmusic.com> Co-authored-by: B-201 <Joy25810@foxmail.com> * [Model Runner V2] Support zeroing freshly allocated KV blocks for hybrid + fp8 KVCache (#43990) Signed-off-by: zhuhaoran <zhuhaoran.zhr@alibaba-inc.com> * [Model Runner V2] Use actual batch max_seq_len for attn metadata (#43991) Signed-off-by: zhuhaoran <zhuhaoran.zhr@alibaba-inc.com> * [Refactor] Unify reasoning + tool-call parsing behind Parser.parse() (#44267) Signed-off-by: sfeng33 <4florafeng@gmail.com> --------- Signed-off-by: Hua Huang <huah@nvidia.com> Signed-off-by: holegots <ikun3.1415927@gmail.com> Signed-off-by: Siddharth Bedekar <bedeksid@gmail.com> Signed-off-by: tjtanaa <tunjian.tan@embeddedllm.com> Signed-off-by: sfeng33 <4florafeng@gmail.com> Signed-off-by: yewentao256 <zhyanwentao@126.com> Signed-off-by: Dao Le <daole@inferact.ai> Signed-off-by: Dao Le <Dao007forever@gmail.com> Signed-off-by: Or Ozeri <oro@il.ibm.com> Signed-off-by: Andreas Karatzas <akaratza@amd.com> Signed-off-by: Banani Ghosh <bg2502@nyu.edu> Signed-off-by: Daniel Serebrenik <daserebrenik@nvidia.com> Signed-off-by: Rotem Shavitt <rshavitt@gmail.com> Signed-off-by: Jee Jee Li <jeejeelee@inferact.ai> Signed-off-by: weizhou.lan@daocloud.io <weizhou.lan@daocloud.io> Signed-off-by: wang.yuqi <yuqi.wang@daocloud.io> 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willamhou force-pushed the fix/internlm2-tool-parser branch from 014b188 to 3669203 Compare May 29, 2026 02:25

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Merge branch 'main' into fix/internlm2-tool-parser

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BugenZhao requested a review from njhill as a code owner June 1, 2026 08:09

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BugenZhao changed the title ~~[rust] feat: add InternLM2 tool parser~~ [Rust Frontend] Add InternLM2 tool parser Jun 1, 2026

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BugenZhao merged commit de21863 into vllm-project:main Jun 1, 2026
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willamhou mentioned this pull request Jun 4, 2026

[Rust Frontend] Add ERNIE 4.5 tool parser #44310

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andakai pushed a commit to andakai/vllm that referenced this pull request Jun 4, 2026

[Rust Frontend] Add InternLM2 tool parser (vllm-project#43481)

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Signed-off-by: Will.hou <1205157517@qq.com> Co-authored-by: Claude <noreply@anthropic.com> Co-authored-by: Bugen Zhao <i@bugenzhao.com>

willamhou mentioned this pull request Jun 8, 2026

[Docs] Add Rust frontend contributor guide #44853

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willamhou commented May 23, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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Summary

Duplicate-work check

Known divergences from the Python reference

Intentional divergences (in scope of this PR)

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AI assistance disclosure

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willamhou commented May 23, 2026 •

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