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LM Studio 0.3.31

Nov 4, 2025·
ByLM Studio Team

LM Studio 0.3.31 is now available as a stable release. Update in‑app or download the latest version.

0.3.31 - Release Notes

New in LM Studio 0.3.31:

  • Improve image understanding output quality, especially for OCR tasks
  • Default image attachment size is now 2048px on the longest side for better quality with vision models
    • Can be changed in Settings > Chat > Image Inputs
  • Support for MiniMax M2 tool calling
  • Flash Attention is now enabled by default for CUDA engines
  • New CLI commands to manage engines:
    • lms runtime get
    • lms runtime update
  • Improved macOS 26 compatibility and support

Build 7

  • Fixed a bug where sometimes the Load Model button was greyed out for large MLX models
  • Set Flash Attention on by default for CUDA engines

Build 6

  • Added tool use support for MiniMax M2
  • Added better controls for image input size for vision models

Build 5

  • Update dependencies to support macOS 26
  • Server UX improvements
    • Log v1/chat/completions prompt processing progress to Developer Logs
    • Model-specific v1/chat/completions Developer Logs
    • Log error when JIT model load failed due to guardrails settings

Build 4

  • Fixed "vision.imageResizeSettings key does not exist" error
  • Added settings for configuring maximum image input dimensions for vision models.
    • Accessible via Settings > Chat > Image Inputs > "Image resize bounds"
    • These settings control the maximum dimensions to which input images are resized before being sent to vision-capable models.

Build 3

  • Added lms runtime get and lms runtime update CLI commands to manage runtime extensions from the terminal.
    • Run lms runtime -h for more info.
  • Fix issue where sometimes reasoning models' output would start with a plaintext <think> token

Build 2

  • Increase image resize limits to 1024x1024 for improved image processing performance (superseded: now 2048px)
    • In a future update this will be user configurable (fixed in build 4)

Build 1

  • [MLX] Fix ValueError: Image features and image tokens do not match for Qwen3 VL Thinking models
  • Fix occasional UI crash when searching models

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