Mistral AI

Magistral Small 1.2

Generally availableOpen weights128K contextReasoning

Summary

Magistral Small 1.2 is an open-weight language model from Mistral AI, released on 18 Sept 2025. It accepts text and images and generates text, with a 128K-token context window and up to 40K output tokens per response. As of 4 Oct 2026, the lowest listed API price is $0.50 per million input tokens and $1.50 per million output tokens (Amazon Bedrock), across 1 provider we track.

Open multimodal reasoning model for transparent analysis of text and images

Last verified 4 Oct 2026. Every figure on this page links to its source.

Specifications

DeveloperMistral AI
Release date18 Sept 2025 [models.dev]
StatusGenerally available [models.dev]
WeightsOpen weights [models.dev]
Context window128K (128,000 tokens) [models.dev]
Max output40K tokens [models.dev]
InputText and images [models.dev]
OutputText [models.dev]
Reasoning modeYes [models.dev]
Tool callingYes [models.dev]
Structured outputYes [models.dev]

Magistral Small 1.2 API pricing by provider

USD per million tokens. Sorted by input price.

ProviderInputOutputCached inputContextSource
Amazon Bedrock
mistral.magistral-small-2509
$0.50$1.50–128Kmodels.dev, 4 Oct 2026

Frequently asked questions

What is the context window of Magistral Small 1.2?

Magistral Small 1.2 has a context window of 128,000 tokens (128K) and can generate up to 40,000 tokens in a single response, according to models.dev.

How much does the Magistral Small 1.2 API cost?

Magistral Small 1.2 is listed from $0.50 per million input tokens and $1.50 per million output tokens (Amazon Bedrock). Prices last verified 4 Oct 2026.

Is Magistral Small 1.2 open source?

Magistral Small 1.2 is an open-weight model. Check the license terms before commercial use.

When was Magistral Small 1.2 released?

Mistral AI released Magistral Small 1.2 on 18 Sept 2025, according to models.dev.

Change history

No changes detected since we started tracking this model. We re-check every source daily.

Sources