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Mistral Medium 3.5

Mistral AIOpen WeightsPending Human Review

Mistral Medium 3.5 is a dense open-weight multimodal model that combines instruction following, coding, and adjustable reasoning in a single checkpoint. It launched in public preview as the default model in Le Chat and Mistral Vibe, supporting long-running software and productivity tasks, parallel tool calls, and structured outputs. A newly trained vision encoder handles variable image dimensions and aspect ratios. The modified MIT license must be checked for commercial restrictions; the published four-GPU deployment is a configuration example rather than a universal memory requirement.

2026-05-22
128B
Dense Transformer with vision encoder
Modified MIT

Specifications

Parameters
128B
Architecture
Dense Transformer with vision encoder
License
Modified MIT
Context Window
262,144 tokens
Type
multimodal
Modalities
textimage

Benchmark Scores

Advanced Specifications

Model Family
Mistral Medium
API Access
Available
Chat Interface
Available

Capabilities & Limitations

Capabilities
configurable reasoningcodingvisionstructured outputparallel tool calling
Known Limitations
Public preview at launchCustom license has commercial conditionsLarge dense checkpoint requires substantial GPU memory
Notable Use Cases
repository maintenanceresearch agentsproductivity automation
Function Calling Support
Yes
Tool Use Support
Yes

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