AI Recommendation
Should you use Mistral-Small-3.1?
Mistral-Small-3.1 is listed for chat workloads and supports a 128K context window.
Use it when GitHub Models's free tier is enough for evaluation, demos, or light production traffic.
Mistral-Small-3.1 Free API on GitHub Models
Free API Available from GitHub Models
Mistral Small 3.1 is Mistral AI's efficient 24B-parameter model, available free on GitHub Models.
Free APIOpenAI compatibleText
API Details
Copy-ready connection details
Base URL
https://models.github.ai/inference Model ID
mistral-small-3-1 API format OpenAI Chat Completions
Technical Details
Mistral-Small-3.1 specifications
Context window 128K
Max output 4K
Status Online
Released Mar 17, 2025
Last updated Aug 6, 2026
Free listing since Mar 17, 2025
Input text
Output text
Best for
- Chat
Strengths & Weaknesses
Strengths
- Long context window
- Works with OpenAI-style SDKs
Watch outs
- Free-tier rate limits apply
- Vision support is not listed
- Tool calling is not confirmed
Benchmark Overview
Benchmark signals for Mistral-Small-3.1
Intelligence General reasoning and instruction following
14.7/100 Coding Programming and code generation
26.3/100 Agentic Tool use and multi-step tasks
5.2/100 Speed Observed generation speed
139 tok/s Context Maximum listed context window
128K Pricing
Mistral-Small-3.1 pricing per 1M tokens
Input $0.1 per 1M tokens
Output $0.3 per 1M tokens
Free access Available GitHub Models
Rate limit 15 RPM, 150 RPD provider policy
Availability
Mistral-Small-3.1 availability by provider
We only found this Mistral-Small-3.1 listing on GitHub Models in the current catalog. Use the related models section for nearby alternatives.
| Provider | Model listing | Access | Context | API | Limits |
|---|---|---|---|---|---|
| | Mistral-Small-3.1 | Free tier | 128K | OpenAI-style | 15 RPM, 150 RPD |
Compare
Mistral-Small-3.1 alternatives to consider
| Model | Provider | Context | Access |
|---|---|---|---|
| Phi-4 | GitHub Models | 131K | Free tier |
| Mistral Large (24.11) | GitHub Models | 131K | Free tier |
| AI21 Jamba 1.5 Large | GitHub Models | 256K | Free tier |
| gpt-5 | GitHub Models | 200K | Free tier |
| gpt-4.1 | GitHub Models | 1.0M | Free tier |
Typical Use Cases
Mistral-Small-3.1 use cases
Chat
Mistral-Small-3.1 is tagged for chat in this catalog and works with OpenAI-compatible client libraries.
FAQ
Mistral-Small-3.1 free API FAQ
Is Mistral-Small-3.1 free to use?
Mistral-Small-3.1 is listed with free API access on GitHub Models, subject to the provider's quota and account policy.
What is the Mistral-Small-3.1 model ID?
The model ID shown in this catalog is mistral-small-3-1.
What are the Mistral-Small-3.1 free tier rate limits on GitHub Models?
The listed free tier limit is 15 RPM, 150 RPD. Limits can change per account tier, so confirm against the provider dashboard.
What context window does Mistral-Small-3.1 support?
The listed context window is 128K tokens with up to 4K output tokens.
More about Mistral-Small-3.1
Mistral Small 3.1 is Mistral AI's efficient 24B-parameter model, available free on GitHub Models. It delivers strong multilingual performance and instruction-following at a fraction of the cost of larger models, making it a practical choice for chat applications, content generation, and text analysis. With 128K context, OpenAI SDK compatibility, and 15 RPM / 150 RPD limits, it is well-suited for prototyping and personal projects. The main limitation on GitHub Models is the 4K per-request output cap — adequate for chat turns and short-form generation, but constraining for long-form writing tasks.
For API keys, setup steps, and provider-level limits, see the GitHub Models provider page.