openclaw - ✅(Solved) Fix [Bug]: Mistral latest llms not supported [1 pull requests, 1 comments, 2 participants]

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openclaw/openclaw#62162Fetched 2026-04-08 03:08:16
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mistral small latest points to mistral small 4 witch have thinking ability and u can set thinking effort in parameters request is not working mistral small latest not working in general it keep giving random answers

Root Cause

mistral small latest points to mistral small 4 witch have thinking ability and u can set thinking effort in parameters request is not working mistral small latest not working in general it keep giving random answers

Fix Action

Fixed

PR fix notes

PR #62237: Mistral: send reasoning_effort for mistral-small-latest (#62162)

Description (problem / solution / changelog)

Summary

  • Mark mistral-small-latest as reasoning-capable in the bundled catalog and send OpenAI-completions reasoning_effort for that model, mapping OpenClaw thinking levels to Mistrals documented none/high` values.
  • Apply transport-only compat in the cross-route hook (supportsStore, max_tokens) so it no longer overwrites reasoning compat after normalization for mistral-small-latest.
  • Update the Mistral provider docs with an adjustable-reasoning section.

Testing

  • pnpm test:extension mistral
  • pnpm exec oxlint extensions/mistral

Notes

Local pnpm tsgo can fail in a partial checkout without the acpx build artifact; the Mistral extension tests and targeted lint pass here.

Fixes #62162

Made with Cursor

Changed files

  • CHANGELOG.md (modified, +1/-0)
  • docs/providers/mistral.md (modified, +20/-9)
  • extensions/mistral/api.test.ts (modified, +72/-14)
  • extensions/mistral/api.ts (modified, +44/-9)
  • extensions/mistral/index.ts (modified, +2/-2)
  • extensions/mistral/model-definitions.test.ts (modified, +7/-0)
  • extensions/mistral/model-definitions.ts (modified, +1/-1)
RAW_BUFFERClick to expand / collapse

Bug type

Behavior bug (incorrect output/state without crash)

Beta release blocker

No

Summary

mistral small latest points to mistral small 4 witch have thinking ability and u can set thinking effort in parameters request is not working mistral small latest not working in general it keep giving random answers

Steps to reproduce

start open claw using mistral ai api chose mistral small latest witch points to mistral small 4 id then try to chat with it

Expected behavior

the agent keep repliying with HEARTBEAT_OK

<img width="1366" height="727" alt="Image" src="https://github.com/user-attachments/assets/22aab24c-80aa-4e1b-9226-1cb8eb29f8f0" />

Actual behavior

NOT_ENOUGH_INFO

OpenClaw version

openclaw 2026.4.5

Operating system

ubuntu-24.04.4

Install method

npm global

Model

mistral/mistral-small-latest

Provider / routing chain

Mistral AI

Additional provider/model setup details

No response

Logs, screenshots, and evidence

Impact and severity

No response

Additional information

NOT_ENOUGH_INFO

extent analysis

TL;DR

The issue may be resolved by checking the compatibility of the Mistral AI API with the latest version of the Mistral Small model and verifying the correct configuration of the thinking effort parameters.

Guidance

  • Verify that the Mistral Small Latest model is correctly configured and compatible with the OpenClaw version 2026.4.5.
  • Check the documentation of the Mistral AI API to ensure that the thinking effort parameters are set correctly for the Mistral Small 4 model.
  • Test the API with a different model or version to isolate the issue and determine if it's specific to the Mistral Small Latest model.
  • Review the API logs and response codes to identify any errors or inconsistencies that may indicate the root cause of the issue.

Notes

The issue lacks detailed logs and error messages, making it challenging to provide a more specific solution. Further investigation and debugging are necessary to determine the root cause of the issue.

Recommendation

Apply workaround: Test the API with a different model or version to isolate the issue and determine if it's specific to the Mistral Small Latest model. This will help to identify if the issue is related to the model or the API configuration.

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FAQ

Expected behavior

the agent keep repliying with HEARTBEAT_OK

<img width="1366" height="727" alt="Image" src="https://github.com/user-attachments/assets/22aab24c-80aa-4e1b-9226-1cb8eb29f8f0" />

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