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Codex Mini (Latest)

OpenAI

Strongest in Reasoning (#105 of 143, on 1 of its 3 boards), weakest in Reasoning (#128 of 189). Above par in 0 of 2 scopes. Among the models it meets almost everywhere, it finishes behind Claude Opus 5.5 and Claude Fable 5.1 and ahead of Magistral Medium and Magistral Small.

§ 1 · Profile

What it is good at

Bars run from 50 — the average of the models each source lists — so right of the line is above par. The middle column is the gap to whoever leads that scope.

Reasoning45.8#128/189
Reasoning42.4#105/143

§ 2 · Head to head

What it beats, and what beats it

The same models turn up scope after scope. Counted once: where both were placed, who finished higher. Bars run right for Codex Mini (Latest), left for the other.

GPT-4o Miniwon 2 · lost 0
NVIDIA Nemotron 3.5 Lightning 30B A3Bwon 2 · lost 0
GPT-4owon 2 · lost 0
Command R Pluswon 2 · lost 0
Llama 3.3 70B Instructwon 2 · lost 0
Grok 2won 2 · lost 0
Llama 4 Scout Instructwon 2 · lost 0
Gemini 1.5 Prowon 2 · lost 0
GPT-4.1 Nanowon 2 · lost 0
GPT-3.5 Turbowon 2 · lost 0
Gemini 2.0 Flashwon 2 · lost 0
O1 Miniwon 2 · lost 0
Gemma 4 31Bwon 2 · lost 0
Llama 4 Maverick Instructwon 2 · lost 0
GPT-4.1won 2 · lost 0
Mistral Large 3won 2 · lost 0
DeepSeek V3won 2 · lost 0
Mistral Large v2won 2 · lost 0
Llama 3.1 405B Instructwon 2 · lost 0
Claude 3 Opuswon 2 · lost 0
MiniMax M2won 2 · lost 0
GPT-4 Turbowon 2 · lost 0
GPT-4.5won 2 · lost 0
Muse Spark Openwon 2 · lost 0
Claude Haiku 4.5won 2 · lost 0
GPT-4.1 Miniwon 2 · lost 0
Gemini 2.0 Flash Thinkingwon 2 · lost 0
Gemini Exp 1206won 2 · lost 0
Kimi K2won 2 · lost 0
Grok 3won 2 · lost 0
Magistral Smallwon 2 · lost 0
Magistral Mediumwon 2 · lost 0
Claude 3.5 Sonnetwon 1 · lost 1
MiniMax M3won 1 · lost 1
Gemini 3.5 Flash Litewon 1 · lost 1
Ox Alphawon 1 · lost 1
GLM-5.3 Flashwon 1 · lost 1
Kimi K2.7 Codewon 1 · lost 1
Claude 3.7 Sonnetwon 1 · lost 1
Gemini 2.5 Flashwon 1 · lost 1
Inkling Smallwon 1 · lost 1
Qwen 3.6 Flashwon 1 · lost 1
Qwen3 235B A22B Instructwon 1 · lost 1
O3 Miniwon 1 · lost 1
NVIDIA Nemotron 3 Ultra 550B A55Bwon 1 · lost 1
O4 Miniwon 1 · lost 1
GPT OSS 120Bwon 1 · lost 1
Grok 3 Miniwon 1 · lost 1
O3 Prowon 0 · lost 2
Nemotron 3.5 Super VLwon 0 · lost 2
Beam 1.0won 0 · lost 2
Claude Opus 4won 0 · lost 2
DeepSeek R1won 0 · lost 2
GPT-5 Nanowon 0 · lost 2
Mistral Large 4won 0 · lost 2
DeepSeek V3.1won 0 · lost 2
Step 5won 0 · lost 2
Qwen3.8 27Bwon 0 · lost 2
GPT-5.4 Miniwon 0 · lost 2
O1won 0 · lost 2
Claude Sonnet 4won 0 · lost 2
MiniMax M2.1won 0 · lost 2
Mimo V2.6 Prowon 0 · lost 2
Inklingwon 0 · lost 2
DeepSeek V4 Flash Visionwon 0 · lost 2
DeepSeek 3.2 Specialewon 0 · lost 2
Grok 4.7won 0 · lost 2
Kimi K2 Thinkingwon 0 · lost 2
GPT-6 Lunawon 0 · lost 2
DeepSeek V3.2won 0 · lost 2
GPT-5 Prowon 0 · lost 2
GPT-5.4 Nanowon 0 · lost 2
GPT-5 Miniwon 0 · lost 2
MiniMax M2.5won 0 · lost 2
O3won 0 · lost 2
Qwen3.8 Flashwon 0 · lost 2
GPT-5.6 Lunawon 0 · lost 2
Kimi K2.5won 0 · lost 2
Claude Sonnet 4.5won 0 · lost 2
GLM-5won 0 · lost 2
GLM-5.2won 0 · lost 2
GLM-5.3won 0 · lost 2
Gemini 2.5 Prowon 0 · lost 2
Grok 4 Fastwon 0 · lost 2
Claude Opus 4.1won 0 · lost 2
GPT-5.2 Prowon 0 · lost 2
GLM-4.7won 0 · lost 2
DeepSeek V4 Flashwon 0 · lost 2
Qwen3.8 2.4T A95Bwon 0 · lost 2
Qwen3.6 Maxwon 0 · lost 2
Gemini 3.6 Flashwon 0 · lost 2
GPT-5won 0 · lost 2
GPT-5.1won 0 · lost 2
Qwen3.7 Maxwon 0 · lost 2
Claude Sonnet 4.6won 0 · lost 2
Grok 4.5won 0 · lost 2
Muse Spark 1.2won 0 · lost 2
Gemini 3.5 Flashwon 0 · lost 2
Claude 4.7won 0 · lost 2
Dots3 Notewon 0 · lost 2
Qwen3.8 Maxwon 0 · lost 2
DeepSeek V4 Prowon 0 · lost 2
GLM-5.1won 0 · lost 2
Claude Haiku 5.5won 0 · lost 2
Grok 4.1 Fastwon 0 · lost 2
Grok 4won 0 · lost 2
GPT-5.4 Prowon 0 · lost 2
Claude Opus 4.5won 0 · lost 2
Gemini 3 Deep Thinkwon 0 · lost 2
Kimi K3won 0 · lost 2
DeepSeek V4.1 Flashwon 0 · lost 2
GPT-5.6 Sol Prowon 0 · lost 2
Gemini 3 Flashwon 0 · lost 2
GPT-5.2won 0 · lost 2
Gemini 3.1 Prowon 0 · lost 2
Claude Sonnet 5won 0 · lost 2
Gemini 3.7 Flashwon 0 · lost 2
Claude Opus 4.6won 0 · lost 2
GPT-5.6 Terrawon 0 · lost 2
Grok 4.20won 0 · lost 2
Claude Opus 4.7won 0 · lost 2
Grok 4.6won 0 · lost 2
Muse Spark 1.3won 0 · lost 2
Claude Opus 4.8won 0 · lost 2
Muse Wonderwon 0 · lost 2
Gemini 3.8 Flashwon 0 · lost 2
Claude Fablewon 0 · lost 2
GPT-5.4won 0 · lost 2
GPT-5.5 Prowon 0 · lost 2
Gemini 3 Prowon 0 · lost 2
GPT-6 Astra Prowon 0 · lost 2
GPT-5.5won 0 · lost 2
GPT-6 Solwon 0 · lost 2
GPT-5.6 Solwon 0 · lost 2
Claude Fable 5won 0 · lost 2
Claude Sonnet 5.5won 0 · lost 2
Gemini 4 Argonwon 0 · lost 2
Claude Opus 5won 0 · lost 2
GPT-6.1 Solwon 0 · lost 2
GPT-6 Astrawon 0 · lost 2
Claude Fable 5.1won 0 · lost 2
Claude Opus 5.5won 0 · lost 2

§ 3 · Sources

Where the numbers come from

1 publication, 1 figures. Every one links to the page it was read from.

ARC-AGI-2 ↗1 measureread 2026-10-19
ARC-AGI-2 1.3%

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