> GPT-4o (Aug 2024) is a closed AI model from OpenAI, released 6 Aug 2024. Index score 109 (GPT-4 = 100), rank 161 of 229 ranked models. API price $2.5 in / $10 out per million tokens, 128K context.

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# GPT-4o (Aug 2024)

OpenAI

Released 6 Aug 2024

Closed

[Compare](https://themodelindex.org/compare/gpt-4o-aug-2024-vs-llama-3-1/)

10998–121

Index score

#161 of 229 models

3/ 8

Core tests taken

3 of 6 areas · plus 8 anchor tests

−2

Versus the frontier at release

best then: Claude 3.5 Sonnet (Jun 2024)

Replaced by [GPT-4o (Nov 2024)](https://themodelindex.org/models/gpt-4o-nov-2024/)

$2.5/ $10

Price per million tokens

input / output, list price

128K

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_

GPT-4o reached this score 3 months earlier.

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

Show 7 anchor tests

Reasoning & knowledge

evidence

GPQA Diamond

49%

Humanity's Last Exam

no result

Maths

evidence

FrontierMath T1-3

0%

Coding

evidence

SWE-bench Verified

no result

Terminal-Bench

no result

Agents

no evidence yet

APEX-Agents

no result

Novel problems

no evidence yet

ARC-AGI-2

no result

Long tasks

evidence

METR time horizon

7.0 min

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

#161

of 219 · 109

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 GPT-4o (Nov 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

ChatGPT

app · subscription

↗

OpenAI API

API

↗

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

A

Azure

$2.5 / $10

cheapest

O

OpenAI

$2.5 / $10

↗

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

6 Aug 2024

Announcement

not linked yet

Release entry

–

Scored as

GPT-4o (Aug 2024)

Artificial Analysis index

–

Output speed

–

Hugging Face

closed weights

## OpenAI releases · around this one

ChatGPT

Closed

30 NOV 2022

GPT-4

Closed

14 MAR 2023

index 100

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Source: https://themodelindex.org/models/gpt-4o-aug-2024/ · The Model Index · data as of 2026-10-01