Voxtral Mini 3B

by Mistral

Voxtral Mini 3B (July 2025) is a compact 3B open-weight speech model built on the Ministral-3B language backbone and released under Apache 2.0. It pairs speech transcription with native audio understanding, so one model can transcribe, translate, summarize, and answer questions about spoken content rather than chaining a recognizer to a separate language model. The model is natively multilingual across widely used languages and supports a dedicated transcription mode alongside built-in question answering and summarization. Function calling lets it trigger downstream actions directly from voice, which suits agentic and tool-using workflows. Its small footprint makes Voxtral Mini 3B a practical choice for edge and on-device deployment of voice agents, conversational interfaces, and cost-sensitive audio applications where efficiency matters.

Key info

Input
Output
Features
Context window
β€”
Max output
β€”
Input price
$0.0010 /1M
Output price
$0.0010 /1M
  • US residency available
  • Zero data retention via Enterprise
  • No training by default

Available routes

Voxtral Mini 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
DeepInfraUSEnterpriseNo$0.0010$0.0010

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

Data handling per route

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

DeepInfra β€” United StatesπŸ‡ΊπŸ‡Έ

Zero data retention is available via Opper Enterprise contract. No training on customer data. US; unknown.

Zero data retention
Available via Opper Enterprise contract.
Training
No training on customer data.
Logging
Limited debug logs
Third-party access
None disclosed
GDPR DPA
No DPA
Transfer mechanism
unknown

Get started

Call Voxtral Mini 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: "deepinfra/mistralai/Voxtral-Mini-3B-2507",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);

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Voxtral Mini 3B by Mistral β€” pricing, benchmarks | Opper AI