Mistral Medium 3.5
Mistral Medium 3.5 is a dense 128B model that combines instruction following, reasoning and coding. It accepts text and images. Its official weights remain available, while the API model is deprecated and Mistral directs new integrations to Large 4.
Deprecated API; check access details
Check the configuration of older conversions
The model card records a corrected Transformers configuration that affected long-context performance. It says GGUF conversions made from the earlier configuration are also affected. Mistral also publishes an EAGLE model for faster local inference. Reasoning can be enabled or disabled per request.Mistral Medium 3.5 official weight card
Read the company revenue condition
The Modified MIT license requires a separate arrangement if the company or employer exceeded US$20 million in global consolidated monthly revenue in the preceding month. The restriction also covers derivatives and combined works.Mistral Medium 3.5 weight license
Separate the deprecated API from weights
The model page records API deprecation on 31 October 2026. The official weight repository remains available. API access is subject to Mistral's retirement schedule; a published model identifier does not guarantee continued service after retirement.Mistral Medium 3.5 API lifecycle pageMistral Medium 3.5 official weight card
Evaluate the complete task
Practical guidance. When comparing a downloaded conversion, record its source revision as well as its model name. A result from an affected configuration can give a misleading view of long-document performance. Compare direct and reasoning modes with the same output requirements before deciding whether this dense model suits the available hardware.
Specifications & access
| Detail | Value and conditions |
|---|---|
| Status | Deprecated API; check access details |
| Access | API, Downloadable |
| Model identifiers | mistral-medium-3-5Mistral-Medium-3.5-128B |
| Context window | 256,000 tokens Advertised 256k context. Local capacity depends on the serving configuration. Mistral Medium 3.5 official weight card |
| API status | Deprecated on 31 October 2026Mistral Medium 3.5 API lifecycle page |
| Weight license | Modified MIT; revenue condition appliesMistral Medium 3.5 weight license |
| Weight repository | mistralai/Mistral-Medium-3.5-128BMistral Medium 3.5 official weight card |
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