Ministral 3 3B

by Mistral

Ministral 3 3B is the smallest model in Mistral's December 2025 Ministral 3 family, packing language capabilities into an ultra-compact 3-billion-parameter footprint built for edge deployment. With a 256k token context window and Apache 2.0 open-source licensing, it runs capable inference on consumer hardware and embedded systems. Designed for resource-constrained environments, Ministral 3 3B supports tool use, function calling, and structured outputs, enabling agent applications on single-GPU systems or CPU-only configurations. It runs on consumer-grade hardware and supports fully private, on-device deployment. As the smallest model in the family, Ministral 3 3B suits developers building responsive applications, embedded systems, and solutions that need offline capability. Its open-weight status and feature set make it a candidate for local customization and fine-tuning while staying compatible with modern agentic patterns.

Key info

Input
Output
Features
Context window
256K
Max output
8K
Input price
$0.10 /1M
Output price
$0.10 /1M
  • EU residency available
  • Zero data retention via Enterprise
  • No training by default
  • GDPR DPA available

Available routes

Ministral 3 3B runs on 1 route through the Opper gateway. Compare residency, ZDR, and training posture at a glance β€” full data-handling detail per route below.

ProviderRegionZero data retentionTrainingInputOutput
MistralEUEnterpriseNo$0.10$0.10

Training posture across routes: No training on prompts by default.

Data handling per route

Each route hosting Ministral 3 3B has its own privacy posture, residency, and GDPR terms. Postures are maintained by Opper with a last-verification timestamp.

Mistral β€” FranceπŸ‡«πŸ‡·

Zero data retention is available via Opper Enterprise contract. No training on customer data. EU; DPA available.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Abuse monitoring (30-day retention)
Third-party access
Provider may share with subprocessors / partners
GDPR DPA
DPA available
Transfer mechanism
Not applicable β€” data stays in EU

Get started

Call Ministral 3 3B through the Opper gateway with one API key. Let your coding agent set it up, or call it directly β€” Opper is drop-in compatible with the OpenAI, Anthropic, and Google AI SDKs.

Set it up with your agent

Copy this and paste it into your coding agent β€” Claude Code, Cursor, Codex, and more β€” and it'll wire up Opper for you.

Or call it directly

import OpenAI from "openai";
const client = new OpenAI({
apiKey: process.env.OPPER_API_KEY,
baseURL: "https://api.opper.ai/v3/compat",
});
const completion = await client.chat.completions.create({
model: "mistral/ministral-3b-2512",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

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Ministral 3 3B by Mistral β€” pricing, benchmarks, EU hosting | Opper AI