Mistral Medium 3.1
Mistral Mistral Medium 3.1 — pricing, 131k context window, API cost calculator and alternatives.
By Mistral
Specs
- Provider
- Mistral
- Slug
- mistralai/mistral-medium-3-1
- Capabilities
- vision, tools, json_mode
Pricing freshness
- Tier
- standard
- Currency
- USD
- As of
- 2026-05-08 17:08 UTC
Pricing history
Tracking Mistral Medium 3.1 pricing since 2026-05-08. We'll plot the chart here once it changes.
Quickstart — call Mistral Medium 3.1 from your app
curl https://api.mistral.ai/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer $MISTRAL_API_KEY" \
-d '{
"model": "mistral-medium-3-1",
"messages": [{"role": "user", "content": "Hello!"}]
}'Official docs: https://docs.mistral.ai/api/
# pip install openai
from openai import OpenAI
client = OpenAI(
base_url="https://api.mistral.ai/v1",
api_key=os.environ["MISTRAL_API_KEY"],
)
resp = client.chat.completions.create(
model="mistral-medium-3-1",
messages=[{"role": "user", "content": "Hello!"}],
)
print(resp.choices[0].message.content)Official docs: https://docs.mistral.ai/api/
// npm install openai
import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.mistral.ai/v1",
apiKey: process.env.MISTRAL_API_KEY,
});
const resp = await client.chat.completions.create({
model: "mistral-medium-3-1",
messages: [{ role: "user", content: "Hello!" }],
});
console.log(resp.choices[0].message.content);Official docs: https://docs.mistral.ai/api/
Related models
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Frequently asked questions
What is Mistral Medium 3.1?
Mistral Medium 3.1 is a large language model API from Mistral with a 131k-token context window. It costs $0.4 per 1M input tokens and $2 per 1M output tokens.
How much does Mistral Medium 3.1 cost?
Mistral Medium 3.1 is priced at $0.4 per 1M input tokens and $2 per 1M output tokens via the Mistral API. A 50/50 input/output workload of 1M total tokens costs about $1.2.
What is the context window of Mistral Medium 3.1?
Mistral Medium 3.1 supports up to 131k tokens of context per request — roughly 262 pages of English text or 16384 lines of code at a typical density.
Does Mistral Medium 3.1 support vision, tool use, or JSON mode?
Mistral Medium 3.1 supports vision, tool/function calling, and structured JSON mode.
Who makes Mistral Medium 3.1?
Mistral Medium 3.1 is built and operated by Mistral. Pricing, context window, and capabilities on this page are refreshed nightly from Mistral's public catalog.
Can I self-host Mistral Medium 3.1?
Mistral Medium 3.1 is API-only — its weights are not publicly distributed by Mistral, so it cannot be self-hosted today.