LM Studio 0.3.31

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• Increase image resize limits to 1024x1024 for improved image processing performance (superseded: now 2048px)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