Mistral Medium 3.1 — Mistral AI | Modeldex

Mistral Medium 3.1

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Mistral Medium 3.1 is an updated version of Mistral Medium 3, which is a high-performance enterprise-grade language model designed to deliver frontier-level capabilities at significantly reduced operational cost. It balances...

Updated 4 days agoStructured data from Modeldex catalog

Vision

Knowledge cutoff

Jun 30, 2025(10 months ago)

API release

Aug 13, 2025(8 months ago)

Not enough benchmark coverage yet for an Intelligence Index — needs at least 3 results across 2 categories.

Overview

History

Mistral Medium 3.1 became available via the Mistral AI API on 2025-08-13.

Training & availability

Training data has a knowledge cutoff of 2025-06-30 — information about events after that date is unlikely to appear in the model's responses. Mistral AI has not released the underlying model weights — access is via their hosted API only.

Capabilities

Context window: 131K tokens.
Input modalities: text, image.

Recommended for: vision.

Pricing

Input: $0.4000 per 1M tokens
Output: $2.0000 per 1M tokens

Use the cost calculator above to estimate monthly spend for your workload.

Quick start

Minimal example using the OpenRouter API. Copy, paste, replace the key.

from openai import OpenAI

client = OpenAI(
    base_url="https://openrouter.ai/api/v1",
    api_key="sk-or-...",
)
resp = client.chat.completions.create(
    model="mistral/mistral-medium-3-1",
    messages=[{"role": "user", "content": "Explain quantum computing in one sentence."}],
)
print(resp.choices[0].message.content)

Cost calculator

Estimate your monthly bill. Presets are typical workload sizes.

Input tokens / month5.0M

@ $0.4/1M

Output tokens / month2.0M

@ $2/1M

Input cost

5.0M × $0.4/1M

Output cost

2.0M × $2/1M

Total / month

$72 / year

Providers & performance

1 provider

Multi-provider inference routes for this model — sorted by throughput. Latency is time-to-first-token; throughput is output tokens per second. Data from OpenRouter, measured over the last 30 minutes.

Provider	Throughput	Latency (TTFT)	Input $ / 1M	Output $ / 1M	Context	Quant	Supports
Mistral	65tok/s	512ms	$0.4	$2	131K	—	tools · json

Integrations & tooling support

Tool calling: Not supported
Structured outputs: Not supported

Price vs quality

Mid-tier pricing

Standard pricing band. Quality tier pending more benchmark coverage.

Quality percentile: —
Effective price: $1.6/1M
Pricing breakdown: $0.4/1M in
$2/1M out

Community ratings

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