> Magistral Small 1.2 is an open-weights AI model from Mistral, released 18 Sep 2025. Index score 115 (GPT-4 = 100), rank 148 of 229 ranked models.

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# Magistral Small 1.2

Mistral

Released 18 Sep 2025

Open

[Compare](https://themodelindex.org/compare/magistral-small-1-2-vs-gpt-5/)

115103–127

Index score

#148 of 229 models

1/ 8

Core tests taken

1 of 6 areas · plus 3 anchor tests

−38

Versus the frontier at release

best then: GPT-5

–

Price per million tokens

no public API price found

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Context window

tokens it reads at once

## Where it sits · on the frontier

_Chart: Model Index score of every scored model since late 2022, with the best closed and best open model over time_

o1-mini reached this score 12 months earlier.

## Test results · by area · tick = best by any model

Show 3 anchor tests

Reasoning & knowledge

evidence

GPQA Diamond

48%

Humanity's Last Exam

no result

Maths

evidence

FrontierMath T1-3

no result

Coding

no evidence yet

SWE-bench Verified

no result

Terminal-Bench

no result

Agents

evidence

APEX-Agents

no result

Novel problems

no evidence yet

ARC-AGI-2

no result

Long tasks

no evidence yet

METR time horizon

no result

Independent results from the Epoch AI benchmarking hub, best reasoning setting. The core tests are shown here; anchor tests also inform the score and can be shown above.

## What others say · rank on each leaderboard

The Model Index

independent tests, our method

#148

of 219 · 115

Epoch Capabilities Index

overall capability from many benchmarks

#132

of 239 · 131.4

Artificial Analysis Intelligence Index

overall capability across ten evaluations

#131

of 207 · 9

Further left is better. Leaderboards measure different things: LMArena is people voting blind between two answers, the others are test scores. Click any row for the source.

## Best at · top three among current models

Not in the top three among current models on any category we track.

Where this model places in the top three of today's models, on category leaderboards and on our core tests.

## Where to use it · prices checked 1 Oct 2026

#### From the lab

Le Chat

app · subscription

↗

Mistral API

API

↗

Provider prices come from OpenRouter's live listing; going direct to a provider can differ. Subscriptions are the lab's own apps.

## Facts and sources

Released

18 Sep 2025

Announcement

not linked yet

Release entry

–

Scored as

Magistral Small 1.2

Artificial Analysis index

9 (their estimate)

Output speed

–

Hugging Face

not linked

## Mistral releases · around this one

Mistral 7B

Open

27 SEP 2023

index 83

Mixtral 8x7B

Open

8 DEC 2023

index 88

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Source: https://themodelindex.org/models/magistral-small-1-2/ · The Model Index · data as of 2026-10-01