Mistral Medium 3.5
Mistral AI · 2026-04-29 · 127.7B parameters
Mistral Medium 3.5 is Mistral AI's dense, 128B-class open-weight multimodal model, released in April 2026 and optimized for agentic and coding use cases. It accepts text and image input, produces text, supports a 256K-token context window, and offers per-request configurable reasoning effort alongside native function calling and JSON output. The weights use Mistral's Modified MIT license, and Mistral says the model can be self-hosted on as few as four GPUs.