# Mistral Small 3.1 24B Instruct

> Mistral Small 3.1 24B Instruct is an open-weight language model from Mistral AI, released on 17 Mar 2025. It accepts text and generates text, with a 128K-token context window and up to 128K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $0.35 per million input tokens and $0.56 per million output tokens (Cloudflare Workers AI), across 2 providers we track.

Source page: https://www.aimodel.directory/models/mistral-small-3-1-24b-instruct
Last verified: 4 Oct 2026

## Specifications

- **Developer:** Mistral AI
- **Release date:** 17 Mar 2025 (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/cloudflare-workers-ai/models/@cf/mistralai/mistral-small-3.1-24b-instruct.toml)
- **Status:** Generally available (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/cloudflare-workers-ai/models/@cf/mistralai/mistral-small-3.1-24b-instruct.toml)
- **Weights:** Open weights (source: Hugging Face, https://huggingface.co/mistralai/Mistral-Small-3.1-24B-Instruct-2503)
- **License:** apache-2.0 (source: Hugging Face, https://huggingface.co/mistralai/Mistral-Small-3.1-24B-Instruct-2503)
- **Parameters:** 24B (source: Hugging Face, https://huggingface.co/mistralai/Mistral-Small-3.1-24B-Instruct-2503)
- **Context window:** 128K (128,000 tokens) (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/cloudflare-workers-ai/models/@cf/mistralai/mistral-small-3.1-24b-instruct.toml)
- **Max output:** 128K tokens (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/cloudflare-workers-ai/models/@cf/mistralai/mistral-small-3.1-24b-instruct.toml)
- **Knowledge cutoff:** Jun 2024 (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/cloudflare-workers-ai/models/@cf/mistralai/mistral-small-3.1-24b-instruct.toml)
- **Input:** Text (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/cloudflare-workers-ai/models/@cf/mistralai/mistral-small-3.1-24b-instruct.toml)
- **Output:** Text (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/cloudflare-workers-ai/models/@cf/mistralai/mistral-small-3.1-24b-instruct.toml)
- **Reasoning mode:** No (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/cloudflare-workers-ai/models/@cf/mistralai/mistral-small-3.1-24b-instruct.toml)
- **Tool calling:** Yes (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/cloudflare-workers-ai/models/@cf/mistralai/mistral-small-3.1-24b-instruct.toml)
- **Structured output:** No (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/cloudflare-workers-ai/models/@cf/mistralai/mistral-small-3.1-24b-instruct.toml)
- **Hugging Face:** mistralai/Mistral-Small-3.1-24B-Instruct-2503 (source: Hugging Face, https://huggingface.co/mistralai/Mistral-Small-3.1-24B-Instruct-2503)

## API pricing (USD per 1M tokens)

| Provider | Input | Output | Cached input | Context |
|---|---|---|---|---|
| Cloudflare Workers AI | $0.35 | $0.56 | – | 128K |
| OpenRouter | $0.35 | $0.56 | – | 128K |

## FAQ

### What is the context window of Mistral Small 3.1 24B Instruct?

Mistral Small 3.1 24B Instruct has a context window of 128,000 tokens (128K) and can generate up to 128,000 tokens in a single response, according to models.dev.

### How much does the Mistral Small 3.1 24B Instruct API cost?

Mistral Small 3.1 24B Instruct is listed from $0.35 per million input tokens and $0.56 per million output tokens (Cloudflare Workers AI). Prices last verified 4 Oct 2026.

### Is Mistral Small 3.1 24B Instruct open source?

Mistral Small 3.1 24B Instruct is an open-weight model: its weights are published on Hugging Face as mistralai/Mistral-Small-3.1-24B-Instruct-2503 under the apache-2.0 license. Check the license terms before commercial use.

### When was Mistral Small 3.1 24B Instruct released?

Mistral AI released Mistral Small 3.1 24B Instruct on 17 Mar 2025, according to models.dev.

### Which providers offer Mistral Small 3.1 24B Instruct?

We track Mistral Small 3.1 24B Instruct on 2 providers: Cloudflare Workers AI, OpenRouter.

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Data licensed CC BY 4.0. Cite as: AI Model Directory, "Mistral Small 3.1 24B Instruct", https://www.aimodel.directory/models/mistral-small-3-1-24b-instruct