Mistral: Mistral Medium 3.1
Mistral Medium 3.1 is an AI model developed by mistralai, capable of processing text, images, and file inputs with a context length of up to 131,072 tokens. It also supports the use of external tools but does not enable reasoning or structured output. This model's price point stands out at $0.4 per million input tokens and $2.0 per million output tokens, making it potentially attractive for users who need to process large amounts of data. With a blended benchmark score of 12.3 across one independent benchmark, Mistral Medium 3.1 demonstrates some level of performance. It is worth considering for those on a budget or with specific modality needs, but further evaluation may be necessary to determine its full capabilities and value.
Benchmark results
Independent, published benchmarks. Blended score 10.1 across 1 benchmark, last refreshed 2026-10-13. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 15.2 |
- Model ID
- mistralai/mistral-medium-3.1
- Vendor
- mistralai
- Released
- August 2025
- Tokenizer
- Mistral
- Input Modalities
- text, image, file
- Output Modalities
- text
- Max Output
- 104,857 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- not supported
- Vision
- ✓ accepts images
- Audio
- no
- Moderated
- no
What it costs in practice
Computed from the current $0.40/M input and $2.00/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.01 |
| Classify 1,000 customer emails | 500k in / 50k out | $0.30 |
| A month of a busy support chatbot | 5M in / 2M out | $6.00 |
Similar models
Mistral: Mistral Medium 3
Mistral: Mistral Medium 3.1 (batch)
Mistral: Devstral 2 2512
Mistral: Ministral 3 3B 2512
Mistral: Codestral 2508
Mistral: Codestral 2508 (batch)
Quick answers
- How much does Mistral: Mistral Medium 3.1 cost?
- $0.40 per million input tokens and $2.00 per million output tokens.
- What is Mistral: Mistral Medium 3.1's context window?
- 131,072 tokens, roughly 196 pages of text in a single request.
- Does Mistral: Mistral Medium 3.1 support tool calling?
- It supports tool calling, structured output.
- Can Mistral: Mistral Medium 3.1 process images?
- Yes, it accepts image input.