Mistral Medium 3.1: API pricing, providers and specs
Mistral Medium 3.1 is a text model by Mistral. 2 providers serve it, from $2 to $2.12 /1M; the lowest price is at OpenRouter.
A newer version is out: Mistral Medium 3.5 · released Apr 29, 2026
How Mistral Medium 3.1 compares
Against the 737 text models on the site priced the same way.
- Mid-priced: its lowest price is $2 /1M against a median of $1.10; 62% of comparable models cost less.
- Its 131K-token context window is larger than 21% of them (median 262K), about 200 pages of text.
- On LMArena's Text board it ranks #23 of the 120 comparable models scored there.
- 2 providers serve it; 36% of comparable models have fewer.
Mistral Medium 3.1 prices by provider
Every provider's list price, read from its own price page or API. A price marked “from” changes with context length, resolution or mode.
| Provider | Input | Output | Prompt caching | Context |
|---|---|---|---|---|
| OpenRouter | $0.40/1M | From$2/1M | $0.04/1M | 131K |
| AI/ML API | $0.423/1M | $2.12/1M | $0.042/1M | — |
- OpenRouterFrom$2
- AI/ML API$2.12
Specs
- Type
- Text
- Maker
- Mistral
- Inputs
- Image, Text
- Outputs
- Text
- Context
- 131K≈ 200 pages of text
- Max output
- 105K
- Capabilities
- Prompt caching, JSON, Tool calling, Vision
- Released
- Aug 13, 2025
- License
- —
- Open weights
- —
- Arena score
- 1424Text
Alternatives to Mistral Medium 3.1
Same kind of model from other makers, at a similar price.
| Model | Lowest price | Context | Arena | Providers |
|---|---|---|---|---|
| Mistral Medium 3.1this model | $2/1M | 131K | 1424 | 2 |
 GLM-5.3 | $1.10/1M | 1.05M | 1623 | 49 |
 Qwen3.8 2.4T A95B | $4.11/1M | 1M | — | 22 |
| Grok 4.7 | $4.80/1M | 500K | 1637 | 28 |
 Gemini 3 Flash | $2.40/1M | 1.05M | 1466 | 5 |
 Muse Spark 1.3 | $4.25/1M | 1.05M | 1657 | 11 |
 Sonar | $1/1M | 127K | — | 9 |
| GLM-5.2 | $1.80/1M | 1M | 1604 | 44 |
| Grok Build 0.1 | $1.60/1M | 256K | — | 18 |
More from Mistral
Mistral Large 4Mistral$2.09/1MMistral 7B InstructMistral$0.059/1MMistral NemoMistral$0.03/1MMistral Medium 3.5Mistral$7.50/1MMinistral 3 3B 2512Mistral$0.10/1MMistral OCR 4.1Mistral$4/1K pagesMinistral 3BMistral$0.10/1MVoxtral TTS 2603Mistral$0.016/1K charsMistral Medium 3.1 FAQ
The lowest price for Mistral Medium 3.1 is $2 /1M, at OpenRouter.
OpenRouter, at $2 /1M. 2 providers serve Mistral Medium 3.1; the table above lists every one with its price.
Mistral Medium 3.1 reads up to 131K tokens per request and writes up to 105K.
We have not found Mistral Medium 3.1's weights published by its maker.
2 API providers serve Mistral Medium 3.1. Compare their prices above, or open a provider to see everything it offers.
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