Overview
Mistral Medium 3.5 (128B) — free model from Mistral AI.
Quick Start — 3 Lines of Code
Paste your API key and run. See the config generator for Claude Code, Cursor, and more tools.
from openai import OpenAI
client = OpenAI(
base_url="https://api.mistral.ai/v1",
api_key="YOUR_API_KEY"
)
response = client.chat.completions.create(
model="mistral-medium-3-5-128b",
messages=[{"role": "user", "content": "Hello!"}]
)
print(response.choices[0].message.content)
import OpenAI from "openai";
const openai = new OpenAI({
baseURL: "https://api.mistral.ai/v1",
apiKey: "YOUR_API_KEY",
});
const completion = await openai.chat.completions.create({
model: "mistral-medium-3-5-128b",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(completion.choices[0].message.content);
curl https://api.mistral.ai/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{
"model": "mistral-medium-3-5-128b",
"messages": [{"role": "user", "content": "Hello!"}]
}'
Other Free Models from Mistral AI
More About Mistral AI
How to get an API key, rate limits, platform limitations, and tool configuration — everything you need to set up Mistral AI as a free LLM API backend.
View Mistral AI full guide →