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✨ feat(model-bank): add claude-fable-5 to Anthropic models#15639

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arvinxx merged 2 commits into
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Jun 10, 2026
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✨ feat(model-bank): add claude-fable-5 to Anthropic models#15639
arvinxx merged 2 commits into
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@arvinxx arvinxx commented Jun 10, 2026

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πŸ’» Change Type

  • ✨ feat
  • πŸ› fix
  • ♻️ refactor
  • πŸ’„ style
  • πŸ‘· build
  • ⚑️ perf
  • βœ… test
  • πŸ“ docs
  • πŸ”¨ chore

πŸ”— Related Issue

πŸ”€ Description of Change

Adds Claude Fable 5 (claude-fable-5, GA 2026-06-09) to the Anthropic model bank, placed above Opus 4.8 and enabled by default.

Specs per Anthropic's official models documentation:

  • Context window: 1M tokens; max output: 128K
  • Pricing: $10 / $50 per MTok (input / output); cache read $1 (0.1Γ—), 5m cache write $12.5 (1.25Γ—)
  • Abilities: functionCall, reasoning, search, structuredOutput, vision
  • settings mirror Opus 4.8 (disabledParams: ['temperature', 'top_p'], extendParams: ['disableContextCaching', 'enableAdaptiveThinking', 'opus47Effort']) β€” Fable 5 shares the Opus 4.7/4.8 API surface (adaptive thinking only, sampling params removed)

Runtime safety note: Fable 5 returns 400 on an explicit thinking: {type: 'disabled'} (the param must be omitted instead). Verified anthropicCompatibleFactory already omits the thinking field entirely when thinking is not enabled/adaptive, so the existing enableAdaptiveThinking toggle is safe with this model and no runtime change is needed.

πŸ§ͺ How to Test

  1. Open model settings for the Anthropic provider β€” Claude Fable 5 appears at the top, enabled by default.
  2. Chat with claude-fable-5: adaptive thinking toggle and effort selector work; temperature/top_p are hidden.
  3. cd packages/model-bank && bunx vitest run src/aiModels/__tests__/index.test.ts passes.
  • Tested locally
  • Added/updated tests
  • No tests needed

πŸ“Έ Screenshots / Videos

Before After
No Fable 5 entry under Anthropic Claude Fable 5 listed at top of Anthropic models

πŸ“ Additional Information

Out of scope (left unchanged on purpose): the home-page starter model constant (starterModels.ts) still promotes Claude Opus 4.8 β€” switching the default recommendation to Fable 5 is a product decision.

πŸ€– Generated with Claude Code

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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The latest updates on your projects. Learn more about Vercel for GitHub.

Project Deployment Actions Updated (UTC)
lobehub Ready Ready Preview, Comment Jun 10, 2026 10:00am

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@dosubot dosubot Bot added size:M This PR changes 30-99 lines, ignoring generated files. provider:claude labels Jun 10, 2026

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We've reviewed this pull request using the Sourcery rules engine

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πŸ’‘ Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: b271fae3c0

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{ name: 'textInput_cacheRead', rate: 1, strategy: 'fixed', unit: 'millionTokens' },
{ name: 'textInput', rate: 10, strategy: 'fixed', unit: 'millionTokens' },
{ name: 'textOutput', rate: 50, strategy: 'fixed', unit: 'millionTokens' },
{ name: 'textInput_cacheWrite', rate: 12.5, strategy: 'fixed', unit: 'millionTokens' },

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P2 Badge Price 1-hour cache writes correctly

For Claude Fable 5, Anthropic's current pricing table lists prompt-cache writes at $12.50/MTok for 5 minutes and $20/MTok for 1 hour, but this fixed textInput_cacheWrite rate only represents the 5-minute case. In contexts where the cost UI/calculator is asked to price a 1-hour cache TTL, this new model will under-report cache-write cost instead of using the existing lookup shape used by other Anthropic models with ttl pricing.

Useful? React with πŸ‘Β / πŸ‘Ž.

releasedAt: '2026-06-09',
settings: {
disabledParams: ['temperature', 'top_p'],
extendParams: ['disableContextCaching', 'enableAdaptiveThinking', 'opus47Effort'],

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P2 Badge Remove the fake adaptive-thinking toggle

Claude Fable 5 has adaptive thinking always on; the Anthropic docs say omitting thinking still runs adaptive thinking and thinking: {type: 'disabled'} is unsupported. Including enableAdaptiveThinking here exposes the existing on/off control, but when users turn it off modelParamsResolver merely omits the field, so the setting cannot disable anything for this model and the UI presents a no-op control as if it changed behavior.

Useful? React with πŸ‘Β / πŸ‘Ž.

… a bound device

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Codecov Report

βœ… All modified and coverable lines are covered by tests.
βœ… Project coverage is 67.65%. Comparing base (3fb732d) to head (d4d97aa).
⚠️ Report is 4 commits behind head on canary.

Additional details and impacted files
@@           Coverage Diff           @@
##           canary   #15639   +/-   ##
=======================================
  Coverage   67.65%   67.65%           
=======================================
  Files        3360     3360           
  Lines      339184   339215   +31     
  Branches    36610    36613    +3     
=======================================
+ Hits       229462   229503   +41     
+ Misses     109531   109521   -10     
  Partials      191      191           
Flag Coverage Ξ”
app 60.17% <ΓΈ> (+<0.01%) ⬆️
database 98.12% <ΓΈ> (ΓΈ)
packages/agent-manager-runtime 49.69% <ΓΈ> (ΓΈ)
packages/agent-runtime 81.06% <ΓΈ> (ΓΈ)
packages/app-config 44.58% <ΓΈ> (ΓΈ)
packages/builtin-tool-lobe-agent 20.07% <ΓΈ> (ΓΈ)
packages/context-engine 84.12% <ΓΈ> (ΓΈ)
packages/conversation-flow 91.29% <ΓΈ> (ΓΈ)
packages/device-gateway-client 90.18% <ΓΈ> (ΓΈ)
packages/env 11.42% <ΓΈ> (ΓΈ)
packages/eval-dataset-parser 95.15% <ΓΈ> (ΓΈ)
packages/eval-rubric 76.11% <ΓΈ> (ΓΈ)
packages/fetch-sse 85.67% <ΓΈ> (ΓΈ)
packages/file-loaders 87.89% <ΓΈ> (ΓΈ)
packages/locales 0.87% <ΓΈ> (ΓΈ)
packages/memory-user-memory 74.99% <ΓΈ> (ΓΈ)
packages/model-bank 99.99% <100.00%> (ΓΈ)
packages/model-runtime 84.27% <ΓΈ> (ΓΈ)
packages/prompts 72.51% <ΓΈ> (ΓΈ)
packages/python-interpreter 92.90% <ΓΈ> (ΓΈ)
packages/ssrf-safe-fetch 0.00% <ΓΈ> (ΓΈ)
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packages/web-crawler 88.08% <ΓΈ> (ΓΈ)

Flags with carried forward coverage won't be shown. Click here to find out more.

Components Coverage Ξ”
Store 68.41% <ΓΈ> (ΓΈ)
Services 54.25% <ΓΈ> (ΓΈ)
Server 97.15% <ΓΈ> (ΓΈ)
Libs 54.19% <ΓΈ> (+0.16%) ⬆️
Utils 82.48% <ΓΈ> (ΓΈ)
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@arvinxx arvinxx merged commit c02e572 into canary Jun 10, 2026
33 of 34 checks passed
@arvinxx arvinxx deleted the feat/anthropic-claude-fable-5 branch June 10, 2026 08:57
arvinxx added a commit that referenced this pull request Jun 10, 2026
# πŸš€ LobeHub Release (20260610)

**Release Date:** June 10, 2026  
**Since v2.2.2:** 131 merged PRs Β· 13 contributors

> This weekly release strengthens agent collaboration across cloud,
desktop, CLI, and workspace flows, with steadier runtime behavior and a
broader foundation for workspace-scoped data.

---

## ✨ Highlights

- **Agent execution across devices** β€” Unifies per-device working
directories, project skill discovery, and sub-agent suspend/resume
behavior across server, QStash, and device RPC flows. (#15543, #15566,
#15481, #15620, #15591)
- **Connector and sandbox platform** β€” Expands connector permissions,
custom OAuth MCP connector onboarding, sandbox provider support, and
user-uploaded file sync into cloud sandbox runs. (#15463, #15546,
#15184, #15550)
- **Desktop and CLI reliability** β€” Fixes desktop cold-start,
auto-update, Windows build, CLI skill discovery, and `lh connect` agent
dispatch paths. (#15547, #15525, #15527, #15562, #15632, #15634)
- **Pages and sharing** β€” Refreshes topic sharing, improves Page Editor
layout behavior, and routes Page Agent tool execution through the
server-side editor path. (#15581, #15556, #15588, #15023, #15610)
- **Model availability and provider updates** β€” Adds user-scoped LobeHub
model availability, Claude Fable 5, Qwen thinking preservation, and
MiniMax M3 updates. (#15590, #15639, #13494, #15376)

---

## πŸ—οΈ Core Product & Architecture

### Agent Runtime & Heterogeneous Agents

- Improves sub-agent lifecycle handling, including async suspend/resume,
queue-mode QStash resume delivery, and blocking nested sub-agent calls.
(#15481, #15620, #15575)
- Stabilizes heterogeneous agent ingestion and streaming with raw stream
dumps, per-turn usage, image forwarding on regenerate, and
duplicate-text fixes. (#15602, #15577, #15592, #15585)
- Adds execution-device and working-directory controls across device
RPC, legacy defaults, and remote-spawned Claude Code sessions. (#15543,
#15566, #15591, #15572)
- Improves runtime diagnostics and compatibility, including Gemini
multimodal output capture, abort stream semantics, and trace quality
analysis. (#15535, #13677, #15508)

---

## πŸ“± Platforms, Integrations & UX

### Connectors, Sandbox & Tools

- Ships API-level connector tool permissions, custom OAuth MCP connector
onboarding, and connector-first runtime execution. (#15463, #15546)
- Adds sandbox provider support, cloud sandbox file sync, and safer
external URL file input handling with SSRF validation. (#15184, #15550,
#12657)
- Improves tool visibility and execution with pinned app-fixed tools,
ANSI output rendering, gateway-tunneled MCP calls, and automatic
headless tool runs. (#15509, #15516, #15469, #15492)

### Desktop, CLI & Web UX

- Restores desktop startup and reload behavior, preserves IPC error
causes, and keeps the tab bar new-tab action visible across routes.
(#15547, #15597, #15638)
- Fixes desktop update and build stability for browser quit guards,
macOS update signing, and Windows Visual Studio detection. (#15525,
#15527, #15562)
- Shows the plan-limit upgrade UI on desktop builds. (#15628)
- Adds the Agent Run delivery checker and fixes CLI device dispatch plus
skill list/search output. (#15489, #15634, #15632)
- Refreshes onboarding, auth source preservation, topic UI states,
referral/Fable campaign copy, and chat-input control bar behavior.
(#15629, #15544, #15573, #15614, #15616, #15617, #15622, #15643)

---

## πŸ”’ Security, Reliability & Rollout Notes

- External URL file input now includes SSRF validation for safer Google
file handling. (#12657)
- Database workspace-scope migrations are part of this release;
self-hosted operators should run the normal migration path before
serving the updated app. (#15446, #15465, #15468, #15472)
- The release branch was re-cut from `canary` and includes the latest
`main` release-version commit so `v2.2.2` is the verified compare base.

---

## πŸ‘₯ Contributors

@ONLY-yours, @sxjeru, @hardy-one, @xujingli, @hezhijie0327, @Coooolfan,
@arvinxx, @tjx666, @Innei, @rivertwilight, @rdmclin2, @cy948,
@AmAzing129

**Full Changelog**:
v2.2.2...release/weekly-20260610-recut-3
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