Mistral/v1/ai/mistralai/mistral-small-2603

Mistral Small 4

Access Mistral Small 4 through one API key. Europe's leading AI model at a great price.

Mistral's efficient general-purpose model. Fast, affordable, and strong at code, reasoning, and multilingual tasks.

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Context Window

262K tokens

Max Output

8K tokens

Input Price

$0.15 / 1M tokens

Output Price

$0.60 / 1M tokens

Try it live

Send a message and see Mistral Small 4 respond in real time.

POST /v1/ai/mistralai/mistral-small-2603Live testing

API Key

Message *

Max Tokens

Maximum tokens in the response.

Stream

Real-time token streaming

Hit "Run" to see the response

Strengths

✓Fast & efficient

✓Strong multilingual

✓Good at code

✓Ultra low cost

Quick start

Copy this snippet and start making calls with Mistral Small 4.

const res = await fetch('https://api.yepapi.com/v1/ai/mistralai/mistral-small-2603', {
  method: 'POST',
  headers: {
    'x-api-key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "messages": [
      {
        "role": "user",
        "content": "Explain API gateways in 2 sentences."
      }
    ],
    "maxTokens": 256
  }),
});
const data = await res.json();
console.log(data);

Why use Mistral Small 4 through YepAPI?

✓One API key for all models — no separate accounts

✓OpenAI SDK compatible — just change the base URL

✓No monthly minimums — pay per token

✓Switch models with one line of code

✓Full provider passthrough — citations, search results, and all extras included

✓Streaming and non-streaming support on every model

✓Works with Cursor, Claude, LangChain, and any LLM tool

✓Unified billing across all providers

Frequently asked questions

Mistral's efficient general-purpose model. Fast, affordable, and strong at code, reasoning, and multilingual tasks.

Input tokens cost $0.15 per 1M tokens and output tokens cost $0.60 per 1M tokens through YepAPI. No monthly minimums — you only pay for what you use.

Sign up for a free API key, then send requests to the /v1/ai/mistralai/mistral-small-2603 endpoint. YepAPI is OpenAI SDK compatible, so you can use it with any tool that supports OpenAI — just change the base URL.

Mistral Small 4 supports a 262K token context window with up to 8K output tokens per request.