OpenAI

GPT-4o mini

GPT-4o mini is a proprietary model from OpenAI, released Jul 18, 2024. It ranks #265 of 351 on the LMArena text leaderboard with a rating of 1286. It costs $0.15 per million input tokens and $0.60 per million output tokens, with a 125K-token context window.

LMArena text1286+0 in 30 days
Rank#265/351
95% interval1283–1290
Votes68.7K
Developer
OpenAI
Released
Jul 18, 2024
Context window
125K
Price in / out, per 1M tokens
$0.15 / $0.60
Weights
Proprietary
Inputs
Text, Images, Files
Reasoning
No
Tool use
Yes
GPT-4o mini, LMArena text rating over time
12601270128012901300Jul 24Feb 25Sep 25Mar 26Oct 26
LatestGPT-4o mini 1286

The rating LMArena published at each update since Jul 22, 2024. Ratings move as votes come in and new models join.

Benchmarks

BenchmarkScore barAccuracyRankCost / test
LiveCodeBenchCoding26.42%139 / 143$0.15 / $0.6
MedQAMedicine72.44%79 / 92$0.15 / $0.6
GPQA DiamondReasoning44.19%131 / 138$0.15 / $0.6
MMLU-ProReasoning62.73%134 / 138$0.15 / $0.6
AIMEReasoning11.46%88 / 96$0.15 / $0.6
MMMUReasoning56.56%88 / 93$0.15 / $0.6

Vals AI, as of Oct 24, 2026.

LMArena, by category

LeaderboardRatingRankVotes
TextLMArena1286265 / 35168.7K
CodingLMArena1289268 / 34610.9K
MathLMArena1267272 / 3399.3K
Creative writingLMArena1268255 / 34910.5K
Instruction followingLMArena1258268 / 35126.7K
Hard promptsLMArena1267272 / 35118.3K
Multi-turnLMArena1285261 / 34912.3K
Long queriesLMArena1289259 / 3309K
ExpertLMArena1235270 / 3053.6K
Legal and governmentIndustries1305246 / 3253.9K
Medicine and healthcareIndustries1282257 / 3253.4K
Business and financeIndustries1265260 / 3447.8K
ChineseLanguages1265265 / 3285.8K
SpanishLanguages1276230 / 249741
GermanLanguages1272215 / 2611.6K
FrenchLanguages1297218 / 252649
JapaneseLanguages1216202 / 2361.8K
VisionLMArena1066137 / 14617.3K

LMArena, CC BY 4.0, as of Oct 22, 2026. Where a model is rated at several effort levels, its best is shown.

Compare GPT-4o mini

OpenAI

The lab behind GPT and ChatGPT, which brought large language models to hundreds of millions of people. Founded 2015, based in San Francisco. openai.com

Questions

Who makes GPT-4o mini?

GPT-4o mini is made by OpenAI, founded 2015 and based in San Francisco.

How much does GPT-4o mini cost?

$0.15 per million input tokens and $0.60 per million output tokens, at its provider’s list price.

What is GPT-4o mini’s context window?

125K tokens (128,000).

How does GPT-4o mini rank?

#265 of 351 on LMArena’s text leaderboard, rated 1286 (95% interval 1283–1290) from 68,705 votes, as of Oct 22, 2026.

Is GPT-4o mini open source?

No. GPT-4o mini is proprietary and served through its provider’s API.

Sources

Every number on this page comes from these sources; models without a published number show none. Download the data. Cite as “Nexus Explorer, nexus.inc/models”.