LM Studio

Summary

Bionic is LM Studio's agent for work and code. Create documents, slides, PDFs, and software with local or frontier open models.

Release history

1. changelog-20260828-15332d5f Aug 28, 2026 · issue 009

   LM Studio 0.4.22 adds DFlash, DSpark, and MTP assistant drafters plus tool-returned image support in OpenAI and Anthropic APIs.

   • ›Adds support for images returned by tools in OpenAI-compatible and Anthropic-compatible chat APIs.
2. LM Studio 0.4.22 Aug 28, 2026 · issue 009

   LM Studio 0.4.22 adds DFlash/DSpark/MTP model support and tool-returned image support across OpenAI and Anthropic API endpoints.

   • ›Supports images returned by tools in OpenAI-compatible /v1/responses and /v1/chat/completions endpoints, and Anthropic-compatible /v1/messages endpoint — enabling multimodal tool-call workflows.
   • ›Adds support for DFlash, DSpark, and MTP assistant drafter model architectures (requires llama.cpp engine version 2.29.1 or newer).
   • ›Enables in-app updates for Linux AppImage and .deb installations.
3. LM Studio 0.4.21 Aug 12, 2026 · issue 002

   LM Studio 0.4.21 adds local server API key support for enterprise network mode and updated llama.cpp advanced load settings.

   • ›Supports local server API key authentication when using enterprise internal network endpoint mode.
   • ›Updates advanced load settings for mmap, mlock, and direct io for llama.cpp engines 2.28.1 and newer.
4. LM Studio 0.4.20 Jul 22, 2026 · issue 002

   LM Studio 0.4.20 adds enterprise network model endpoints, Bionic LM Link support, and a Llama.cpp log-level developer setting.

   • ›Adds a developer setting to control the Llama.cpp engine log level.
   • ›Adds support for enterprise internal network model endpoints.
   • ›Adds support for using local device models in Bionic over LM Link via the LM Studio Engine Protocol.