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openclaw - 💡(How to fix) Fix Image optimization regression after 2026.4.26: MiniMax-M2.7 image understanding fails with 'Failed to optimize image' [1 comments, 2 participants]

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openclaw/openclaw#73665•Fetched 2026-04-29 06:16:41
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clawsweeper[bot]clawsweeper[bot]renxiangtwrenxiangtw
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Error Message

[media-understanding] image: failed (0/1) reason=Image model failed (minimax/MiniMax-M2.7)
[tools] image failed: Failed to optimize image

Code Example

[media-understanding] image: failed (0/1) reason=Image model failed (minimax/MiniMax-M2.7)
[tools] image failed: Failed to optimize image

---

[agents] Image resized to fit limits: 2142x2296px 312.6KB -> 66.1KB (-78.9%)
RAW_BUFFERClick to expand / collapse

Problem

Image understanding stopped working after updating to 2026.4.26. Previously (2026-04-09) images were successfully resized and sent to the model. Now all image inputs fail at the optimization step.

Environment

  • OpenClaw: 2026.4.26
  • macOS: 26.2 (arm64)
  • Node: 22.22.2
  • Channel: WeChat (openclaw-weixin)
  • Model: minimax/MiniMax-M2.7 (configured with image support in models.json)

Error

[media-understanding] image: failed (0/1) reason=Image model failed (minimax/MiniMax-M2.7)
[tools] image failed: Failed to optimize image

What worked before (2026-04-09)

[agents] Image resized to fit limits: 2142x2296px 312.6KB -> 66.1KB (-78.9%)

Configuration

Model is configured with "input": ["text", "image"] in models.json.

Suggested cause

Image optimization/resize step appears to be broken in this update. The model itself supports image input (per config), but the pre-processing step that resizes images before sending to the model is failing.

extent analysis

TL;DR

The image optimization step in OpenClaw 2026.4.26 may be causing the issue, and reverting or adjusting the image resizing configuration might resolve the problem.

Guidance

  • Verify that the image resizing limits have not changed in the update by checking the documentation for OpenClaw 2026.4.26.
  • Check the models.json configuration to ensure that the image input settings are correct and compatible with the updated OpenClaw version.
  • Test the image understanding feature with a smaller image size to see if the issue is related to the image size or the resizing process.
  • Review the OpenClaw release notes for 2026.4.26 to see if there are any known issues or changes related to image processing.

Example

No code snippet is provided as the issue seems to be related to configuration or version compatibility rather than code.

Notes

The issue might be specific to the OpenClaw version or the model configuration, and more information about the update or the model settings might be needed to provide a definitive solution.

Recommendation

Apply workaround: Adjust the image resizing configuration or test with a smaller image size to mitigate the issue, as the problem seems to be related to the image optimization step.

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#optimization#integration issue#index setup#retrieval issue#search optimization

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openclaw - 💡(How to fix) Fix Image optimization regression after 2026.4.26: MiniMax-M2.7 image understanding fails with 'Failed to optimize image' [1 comments, 2 participants]