Mistral Medium 3.1 Model Specs, Costs & Benchmarks (July 2026)
Mistral Medium 3.1, developed by Mistral, features a context window of 131.1K tokens. The model costs $0.40 per million tokens for input and $2.00 per million tokens for output. It was released on August 13, 2025, and has achieved impressive scores in various benchmarks.
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Overview
 Mistral Medium 3.1 | |
|---|---|
Model Provider The organization behind this AI's development | Mistral |
Input Context Window Maximum input tokens this model can process at once | 131.1K tokens |
Output Token Limit Maximum output tokens this model can generate at once | Not specified tokens |
Release Date When this model first became publicly available | August 13, 2025 11 months ago August 13th, 2025 |
Knowledge Cutoff Latest training-data date reported by the provider | June 30, 2025 |
Pricing
| Mistral Medium 3.1 | |
|---|---|
Input Token Cost Cost per million input tokens | $0.40 per million tokens |
Output Token Cost Cost per million output tokens | $2.00 per million tokens |
Cache Read Cost Cost to reuse cached input tokens | $0.04 per million tokens |
Capabilities & Features
| Mistral Medium 3.1 | |
|---|---|
Input Types Supported input formats | textimagefile |
Output Types Supported output formats | text |
Tokenizer Text encoding system | Mistral |
Key Features Advanced capabilities | ✓ Function Calling✓ Structured Output |
Benchmarks
| Mistral Medium 3.1 | |
|---|---|
Intelligence Index Overall model quality across independent evaluations | 14.7 (Artificial Analysis index; higher is better) |
Coding Index Programming performance across independent evaluations | 20.5 (Artificial Analysis index; higher is better) |
Agentic Index Ability to complete multi-step agentic tasks | 6.2 (Artificial Analysis index; higher is better) |
Best Design Arena Score Highest human-preference Elo score across design arenas | 1,180 Elo (#60 in Data Viz (47.6% win rate)) |
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