> GPT-4o (Jan 2025) is a closed AI model from OpenAI, released 29 Jan 2025.

[Models](https://themodelindex.org/models/) /[OpenAI](https://themodelindex.org/labs/openai/)

# GPT-4o (Jan 2025)

OpenAI

Released 29 Jan 2025

Closed

[Compare](https://themodelindex.org/compare/gpt-4o-jan-2025-vs-deepseek-r1/)

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Index score

Not yet evaluated independently

0/ 8

Core tests taken

0 of 6 areas · plus 1 anchor tests

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Versus the frontier at release

Replaced by [GPT-4o (Mar 2025)](https://themodelindex.org/models/gpt-4o-mar-2025/)

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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-mini reached this score 5 months earlier.

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

Show 1 anchor tests

Reasoning & knowledge

no evidence yet

GPQA Diamond

no result

Humanity's Last Exam

no result

Maths

no evidence yet

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

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

Not on any of the rankings we follow yet.

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 (Mar 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

ChatGPT

app · subscription

↗

OpenAI API

API

↗

#### API providers · 1 · per million tokens, in / out

O

OpenAI

$2.5 / $10

cheapest

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

29 Jan 2025

Announcement

not linked yet

Release entry

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Scored as

GPT-4o (Jan 2025)

Artificial Analysis index

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Output speed

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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-jan-2025/ · The Model Index · data as of 2026-10-01