> Gemini 2.5 Flash is a closed AI model from Google, released 17 Apr 2025. Index score 132 (GPT-4 = 100), rank 113 of 229 ranked models.

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# Gemini 2.5 Flash

Google

Released 17 Apr 2025

Closed

Small / fast

Date verified

[Compare](https://themodelindex.org/compare/gemini-2-5-flash-vs-qwen3/) [Announcement](https://blog.google/products-and-platforms/products/gemini/gemini-2-5-flash-preview/)

132120–143

Index score

#113 of 229 models

1/ 8

Core tests taken

1 of 6 areas · plus 8 anchor tests

−15

Versus the frontier at release

best then: o3

Replaced by [Gemini 2.5 Flash (May 2025)](https://themodelindex.org/models/gemini-2-5-flash-may-2025/)

–

Price per million tokens

no public API price found

–

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 5 anchor tests

Reasoning & knowledge

evidence

GPQA Diamond

no result

Humanity's Last Exam

12%

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

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

#113

of 219 · 132

LMArena · Creative writing

creative writing

#104

of 386 · 1394

LMArena · Text

overall chat quality, judged by people

#130

of 388 · 1409

LMArena · Maths

maths questions in chat

#131

of 373 · 1405

Epoch Capabilities Index

overall capability from many benchmarks

#90

of 239 · 143.0

LMArena · Coding

coding questions in chat

#167

of 383 · 1424

LMArena · Vision

understanding images

#67

of 149 · 1215

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

Replaced by Gemini 2.5 Flash (May 2025); it no longer leads any category among current models.

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

Gemini

app · subscription

↗

Google AI Studio

API

↗

#### API providers · 2 · per million tokens, in / out

G

Google AI Studio

$0.54 / $4.5

cheapest

G

Google

$0.54 / $4.5

↗

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

17 Apr 2025

Announcement

[blog.google ↗](https://blog.google/products-and-platforms/products/gemini/gemini-2-5-flash-preview/)

Release entry

Gemini 2.5 Flash

Scored as

Gemini 2.5 Flash (Apr 2025)

Artificial Analysis index

–

Output speed

–

Hugging Face

closed weights

## Google releases · around this one

Gemma 3

Open

12 MAR 2025

index 112

Gemini 2.5 Pro

Closed

25 MAR 2025

index 141

Gemini 2.5 Flash

Closed

17 APR 2025

index 132

Gemma 3n

Open

20 MAY 2025

Gemini 2.5 Flash-Lite

Closed

17 JUN 2025

index 119

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Source: https://themodelindex.org/models/gemini-2-5-flash/ · The Model Index · data as of 2026-10-01