> Grok-3 mini is a closed AI model from xAI, released 9 Apr 2025. Index score 132 (GPT-4 = 100), rank 110 of 229 ranked models.

[Models](https://themodelindex.org/models/) /[xAI](https://themodelindex.org/labs/xai/)

# Grok-3 mini

xAI

Released 9 Apr 2025

Closed

[Compare](https://themodelindex.org/compare/grok-3-mini-vs-qwen3/)

132121–144

Index score

#110 of 229 models

2/ 8

Core tests taken

2 of 6 areas · plus 8 anchor tests

−8

Versus the frontier at release

best then: Gemini 2.5 Pro

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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 reached this score 4 months earlier.

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

Show 6 anchor tests

Reasoning & knowledge

evidence

GPQA Diamond

76%

Humanity's Last Exam

no result

Maths

evidence

FrontierMath T1-3

no result

Coding

evidence

SWE-bench Verified

no result

Terminal-Bench

no result

Agents

no evidence yet

APEX-Agents

no result

Novel problems

evidence

ARC-AGI-2

0%

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

#110

of 219 · 132

LMArena · Maths

maths questions in chat

#155

of 373 · 1389

Epoch Capabilities Index

overall capability from many benchmarks

#102

of 239 · 140.3

LMArena · Text

overall chat quality, judged by people

#180

of 388 · 1363

LMArena · Creative writing

creative writing

#180

of 386 · 1331

LMArena · Coding

coding questions in chat

#192

of 383 · 1393

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

Grok

app · subscription

↗

xAI 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

9 Apr 2025

Announcement

not linked yet

Release entry

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Scored as

Grok-3 mini

Artificial Analysis index

–

Output speed

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Hugging Face

closed weights

## xAI releases · around this one

Grok-1

Open

4 NOV 2023

Grok-1.5

Closed

28 MAR 2024

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Source: https://themodelindex.org/models/grok-3-mini/ · The Model Index · data as of 2026-10-01