> Gemini 1.5 Flash (Sep 2024) is a closed AI model from Google, released 24 Sep 2024. Index score 111 (GPT-4 = 100), rank 156 of 229 ranked models.

[Models](https://themodelindex.org/models/) /[Google](https://themodelindex.org/labs/google/)

# Gemini 1.5 Flash (Sep 2024)

Google

Released 24 Sep 2024

Closed

[Compare](https://themodelindex.org/compare/gemini-1-5-flash-sep-2024-vs-qwen2-5/)

11199–122

Index score

#156 of 229 models

1/ 8

Core tests taken

1 of 6 areas · plus 8 anchor tests

−12

Versus the frontier at release

best then: o1-mini

Replaced by [Gemini 2.0 Flash (Dec 2024)](https://themodelindex.org/models/gemini-2-0-flash/)

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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_

Claude 3.5 Sonnet (Jun 2024) reached this score 3 months earlier.

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

Show 8 anchor tests

Reasoning & knowledge

evidence

GPQA Diamond

47%

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

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

#156

of 219 · 111

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 2.0 Flash (Dec 2024); 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

↗

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

24 Sep 2024

Announcement

not linked yet

Release entry

–

Scored as

Gemini 1.5 Flash (Sep 2024)

Artificial Analysis index

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Output speed

–

Hugging Face

closed weights

## Google releases · around this one

PaLM 2

Closed

10 MAY 2023

Gemini 1.0 Nano

Closed

6 DEC 2023

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Source: https://themodelindex.org/models/gemini-1-5-flash-sep-2024/ · The Model Index · data as of 2026-10-01