Devstral Small
Devstral Small is a language model from Mistral AI. It is currently free at 1 provider with up to 131K tokens of context. The model is suited to coding, supports tool calling. Its weights are open, so it can also run locally.
- Developer
- Mistral AI
- Context
- 131K tokens
- Type
- Text
- License
- Open weights
Where to use Devstral Small for free
Each row is a separate free endpoint with its own limits.
| Provider | Context | Limit | Card | |
|---|---|---|---|---|
Together AI mistralai/Devstral-Small-2505 |
131K | Fair use (depends on server load) | — | Open |
Quick start
curl https://api.together.xyz/v1/chat/completions \
-H "Authorization: Bearer $TOGETHER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "mistralai/Devstral-Small-2505",
"messages": [{"role": "user", "content": "Hello!"}]
}'from openai import OpenAI
client = OpenAI(
base_url="https://api.together.xyz/v1",
api_key="YOUR_TOGETHER_API_KEY",
)
reply = client.chat.completions.create(
model="mistralai/Devstral-Small-2505",
messages=[{"role": "user", "content": "Hello!"}],
)
print(reply.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.together.xyz/v1",
apiKey: process.env.TOGETHER_API_KEY,
});
const reply = await client.chat.completions.create({
model: "mistralai/Devstral-Small-2505",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(reply.choices[0].message.content);Example for Together AI. Any OpenAI-compatible client works: Cursor, Cline, OpenCode, Open WebUI.
Benchmarks
Source: Artificial Analysis · Devstral Small (May '25)
Similar free models
FAQ
Is Devstral Small free?
Yes. As of September 26, 2026, Devstral Small is free at Together AI. Each provider has its own limits — see the table above.
What is the context window of Devstral Small?
The largest context among free routes is 131,072 tokens. Some providers cap it lower.
How do I call Devstral Small via API?
Use any OpenAI-compatible client with base URL https://api.together.xyz/v1, model ID mistralai/Devstral-Small-2505, and a Together AI key.
How good is Devstral Small?
Artificial Analysis Intelligence Index: 8.7, GPQA Diamond: 43%. For comparison, the strongest free model in the catalog right now is GLM 5.3.
Is Devstral Small open-weight?
Yes, the weights are published — you can download and run it locally, for example with Ollama or LM Studio.