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GLM-4.5 Model Support#20736

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Isotr0py merged 53 commits into
vllm-project:mainfrom
zRzRzRzRzRzRzR:glm-moe
Jul 19, 2025
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GLM-4.5 Model Support#20736
Isotr0py merged 53 commits into
vllm-project:mainfrom
zRzRzRzRzRzRzR:glm-moe

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GLM-4 Update of Moe Support

Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
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👋 Hi! Thank you for contributing to the vLLM project.

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Summary of Changes

Hello @zRzRzRzRzRzRzR, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces comprehensive support for the GLM-4 Mixture-of-Experts (MoE) model within vLLM. It provides the full architectural implementation, including specialized MoE components, and integrates the new model into the existing benchmarking and model loading infrastructure.

Highlights

  • New Model Support: I've added the complete implementation for the Glm4MoeForCausalLM model architecture, enabling vLLM to support GLM-4 Mixture-of-Experts models.
  • Mixture-of-Experts (MoE) Implementation: The new glm4_moe.py file includes custom components like Glm4MoeTopkRouter for expert selection and Glm4MoeSparseMoeBlock to handle the specific routing and shared expert mechanisms of GLM-4's MoE architecture.
  • System Integration: Updates were made to the MoE benchmarking script (benchmark_moe.py) and the model registry (registry.py) to properly recognize and integrate the new Glm4MoeForCausalLM model within vLLM's ecosystem.
  • Weight Loading Logic: The new model implementation includes robust weight loading logic to correctly map and load parameters from HuggingFace checkpoints, covering stacked linear layers (QKV, gate/up projections) and individual expert weights.
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@mergify mergify Bot added the performance Performance-related issues label Jul 10, 2025
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>

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Code Review

The pull request adds support for GLM-4 MoE models to vLLM. The changes include modifying the benchmark script to include GLM-4 MoE, adding the GLM-4 MoE model to the model registry, and creating a new file for the GLM-4 MoE model architecture. There's a potential typo in the benchmark script that needs to be addressed, and the model path in the registry should be a real model name.

Comment thread benchmarks/kernels/benchmark_moe.py Outdated
Comment thread tests/models/registry.py Outdated
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
@mergify mergify Bot added the new-model Requests to new models label Jul 10, 2025
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Comment thread vllm/model_executor/models/glm4_moe.py

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Thank you, we also need to update the document.

Comment thread vllm/transformers_utils/configs/ovis.py Outdated
@zRzRzRzRzRzRzR

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Thank you, we also need to update the document.

Thank you, we also need to update the document.

you mean supported_models.md, isnt it generate auto?

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Thank you, we also need to update the document.

Thank you, we also need to update the document.

you mean supported_models.md, isnt it generate auto?

Yes, we need to update manually.

Isotr0py and others added 2 commits July 12, 2025 22:28
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We also have the MTP model, but if this PR meets the requirements, it can be merged first. The implementation of MTP can be proposed in a separate PR.

@zchen-gitch

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I run GLM-4.5-fp8 on the vllm-0.10.0 environment
raise NotImplementedError(
(VllmWorker rank=6 pid=134832) ERROR 08-01 10:13:01 [multiproc_executor.py:511] NotImplementedError: The class UnquantizedLinearMethod must implement the 'embedding' method, see UnquantizedEmbeddingMethod.

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Hi I get this error "transformers.models.glm4_moe.modeling_glm4_moe.Glm4MoeModel'> does not support tensor parallel yet!" on vllm 10.1 with latest transformers as of 8/2/25. When attempting -tp 2 since it wont fit on one rtx blackwell 6000 96gb

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I'm getting errors in vllm 10.0 and 10.1 trying AWQ, GPTQ and FP8 non work with or without tensor parallelism with my 6000 blackwell cards

x22x22 pushed a commit to x22x22/vllm that referenced this pull request Aug 5, 2025
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Signed-off-by: Lu Fang <fanglu@fb.com>
Co-authored-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Co-authored-by: Lu Fang <fanglu@fb.com>
Signed-off-by: x22x22 <wadeking@qq.com>
Pradyun92 pushed a commit to Pradyun92/vllm that referenced this pull request Aug 6, 2025
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Signed-off-by: Lu Fang <fanglu@fb.com>
Co-authored-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Co-authored-by: Lu Fang <fanglu@fb.com>
npanpaliya pushed a commit to odh-on-pz/vllm-upstream that referenced this pull request Aug 6, 2025
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Signed-off-by: Lu Fang <fanglu@fb.com>
Co-authored-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Co-authored-by: Lu Fang <fanglu@fb.com>
wenbinc-Bin pushed a commit to wenbinc-Bin/vllm-fork that referenced this pull request Aug 7, 2025
cherry-pick: vllm-project@10eb24c

Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Signed-off-by: Lu Fang <fanglu@fb.com>
Co-authored-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Co-authored-by: Lu Fang <fanglu@fb.com>
jinzhen-lin pushed a commit to jinzhen-lin/vllm that referenced this pull request Aug 9, 2025
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Signed-off-by: Lu Fang <fanglu@fb.com>
Co-authored-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Co-authored-by: Lu Fang <fanglu@fb.com>
Signed-off-by: Jinzhen Lin <linjinzhen@hotmail.com>
paulpak58 pushed a commit to paulpak58/vllm that referenced this pull request Aug 13, 2025
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Signed-off-by: Lu Fang <fanglu@fb.com>
Co-authored-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Co-authored-by: Lu Fang <fanglu@fb.com>
Signed-off-by: Paul Pak <paulpak58@gmail.com>
wenbinc-Bin pushed a commit to wenbinc-Bin/vllm-fork that referenced this pull request Aug 14, 2025
cherry-pick: vllm-project@10eb24c

Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Signed-off-by: Lu Fang <fanglu@fb.com>
Co-authored-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Co-authored-by: Lu Fang <fanglu@fb.com>
diegocastanibm pushed a commit to diegocastanibm/vllm that referenced this pull request Aug 15, 2025
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Signed-off-by: Lu Fang <fanglu@fb.com>
Co-authored-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Co-authored-by: Lu Fang <fanglu@fb.com>
Signed-off-by: Diego-Castan <diego.castan@ibm.com>
epwalsh pushed a commit to epwalsh/vllm that referenced this pull request Aug 27, 2025
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Signed-off-by: Lu Fang <fanglu@fb.com>
Co-authored-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Co-authored-by: Lu Fang <fanglu@fb.com>
my-other-github-account pushed a commit to my-other-github-account/vllm that referenced this pull request May 15, 2026
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Signed-off-by: Lu Fang <fanglu@fb.com>
Co-authored-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Co-authored-by: Lu Fang <fanglu@fb.com>
my-other-github-account pushed a commit to my-other-github-account/vllm that referenced this pull request May 15, 2026
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Signed-off-by: Lu Fang <fanglu@fb.com>
Co-authored-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Co-authored-by: Lu Fang <fanglu@fb.com>
0826joyce pushed a commit to 0826joyce/vllm-serving-optimization that referenced this pull request May 19, 2026
Signed-off-by: zRzRzRzRzRzRzR <2448370773@qq.com>
Signed-off-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Signed-off-by: Lu Fang <fanglu@fb.com>
Co-authored-by: Isotr0py <mozf@mail2.sysu.edu.cn>
Co-authored-by: Lu Fang <fanglu@fb.com>
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