Mistral Medium 3.5 by Mistral AI scores 64.9 out of 100 on the Neura Intelligence Index, ranking #92 among tracked AI models. This composite score is computed from 3 individual benchmarks across coding, math, reasoning, and language categories.

Mistral Medium 3.5 costs $1.5/1M input tokens and $7.5/1M output tokens via API. At a typical 3:1 input-to-output ratio with 1M tokens/day usage, the estimated monthly cost is approximately $90.

Yes, Mistral Medium 3.5 has open weights available under the modified_mit_license license. You can download and self-host the model.

Mistral Medium 3.5 supports a context window of 256K tokens, allowing it to process very long documents, codebases, and conversations in a single request.

Mistral Medium 3.5 achieves its highest score on AIME 2025 with a score of 86.3%. This benchmark evaluates american invitational mathematics examination 2025 — competition-level math problems.