Mistral Medium 3.5
Mistral Medium 3.5 is a dense 128B instruction-following model from Mistral AI.
Model by Mistral AI
Install
Pick your client. Read the repository before you give any tool access to your data.
{
"model": "mistralai/mistral-medium-3-5",
"baseURL": "https://openrouter.ai/api/v1"
}OpenAI-compatible API: point any OpenAI SDK at the base URL and use this model id.
Settings it needs
OPENROUTER_API_KEYrequiredsecret
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About
Use cases: code-generation, model-inference
Reviews
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Price and limits
| Variant | Input $/M tokens | Output $/M tokens | Cached input $/M |
|---|---|---|---|
| Standard | $1.5 | $7.5 | — |
Batch API mistralai/mistral-medium-3-5:batch | $0.75 | $3.75 | — |
Price as of Oct 26, 2026 from OpenRouter · provider's own prices: mistral.ai. Prices change often; check before you rely on one.
- Provider
- Mistral
- Model id
mistralai/mistral-medium-3-5- Context window
- 262,144 tokens (262K)
- Max output
- 209,715 tokens
- Input
- text, image, file
- Output
- text
- Tool calling
- Yes
- Structured outputs
- Yes
- Reasoning
- Yes
- Weights
- Closed
- Released
- Apr 30, 2026
Details
- Auth
- API key
- License
- Proprietary
- Website
- mistral.ai
- First seen
- Oct 24, 2026
- Last checked
- Oct 26, 2026
- Source
- OpenRouter
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Cite this page
Mistral Medium 3.5: price, context window, tool use. Agent Mart. https://agentmart.dev/models/mistralai-mistral-medium-3-5 (last updated 2026-10-26)