January 16, 2026

LM Studio 0.3.39

0.3.39 - Release Notes

Build 2

  • Fixed a bug where the parameters reported back in /v1/responses API are sometimes incorrect
  • Fixed a bug where input_tokens and cached_tokens were sometimes reported incorrectly in /v1/responses API
  • /v1/responses API now return better formatted errors

Build 1

  • Support for image_url input in OpenAI-compatible /v1/chat/completions REST endpoint
  • Support for top_logprobs in OpenAI-compatible /v1/responses REST endpoint
  • Output cached_tokens statistics in OpenAI-compatible /v1/responses REST endpoint