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O3 Mini

OpenAI

Strongest in Code generation (#23 of 77, on 1 of its 2 boards), weakest in Agents (#243 of 268). Above par in 13 of 24 scopes. Among the models it meets almost everywhere, it finishes behind Claude Fable 5 and Claude Fable 5.1 and ahead of GPT-5.4 Mini and O1 Mini.

§ 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.

Coding54.8#32/165
Code generation56#23/77
Agentic coding54.1#46/157
Safety55.4#45/337
Harm refusal57.3#29/300
Jailbreak resistance60.3#40/272
Safe-prompt compliance49.9#56/82
Secure code58.2#81/274
Fairness51.2#99/300
Toxicity avoidance52.4#169/272
Knowledge47.4#102/138
Academic knowledge46.8#94/123
Professional47.2#112/168
Medical56#29/140
Legal44.9#104/151
Finance42.8#122/151
Reasoning46.2#114/178
Mathematics55.4#43/140
Science49.6#77/122
Reasoning37.3#128/140
Human preference53.5#155/342
Human preference53.5#155/342
Agents39.4#243/268
Knowledge work36.3#155/178

§ 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 O3 Mini, left for the other.

Jamba 1.6 Miniwon 15 · lost 0
Command R Pluswon 17 · lost 0
Gemini 1.5 Flashwon 16 · lost 1
Mistral Smallwon 16 · lost 1
Jamba 1.6 Largewon 14 · lost 1
Gemini 2.0 Flashwon 19 · lost 2
Gemini 1.5 Prowon 17 · lost 2
GPT-4o Miniwon 19 · lost 4
Command Awon 16 · lost 4
GPT-4.1 Nanowon 18 · lost 5
Mistral Largewon 13 · lost 4
Llama 4 Scout Instructwon 16 · lost 5
Mistral Medium 3.5won 11 · lost 4
GPT OSS 20Bwon 14 · lost 6
Claude 3.5 Haikuwon 13 · lost 7
GPT-4owon 14 · lost 8
DeepSeek V3won 15 · lost 9
GPT-4.1 Miniwon 13 · lost 10
Grok 4.3won 13 · lost 10
Ling 3.0 Flashwon 10 · lost 8
Grok 3won 10 · lost 8
O1 Miniwon 8 · lost 7
GPT-5.4 Miniwon 9 · lost 8
Gemma 4 31Bwon 9 · lost 10
Mistral Large 3won 8 · lost 9
GPT-4.1won 10 · lost 12
DeepSeek V3.2won 10 · lost 12
GPT-5 Nanowon 9 · lost 11
Kimi K2 Thinkingwon 8 · lost 10
GPT-5.4 Nanowon 8 · lost 10
GPT-4 Turbowon 7 · lost 9
Gemini 3.1 Flash Litewon 7 · lost 9
GPT OSS 120Bwon 10 · lost 13
Gemini 2.5 Flashwon 10 · lost 13
DeepSeek V4 Flashwon 10 · lost 13
MiniMax M3won 10 · lost 13
Claude 3.5 Sonnetwon 9 · lost 12
GLM-4.6won 9 · lost 12
Grok 4.1 Fastwon 9 · lost 12
Mimo V2.5 Prowon 9 · lost 12
Claude Sonnet 4.6won 9 · lost 12
Gemini 3.5 Flash Litewon 7 · lost 10
Kimi K2won 9 · lost 13
Qwen3 235B A22B Instructwon 9 · lost 13
Mimo V2.5won 6 · lost 9
Mimo V2.6 Flashwon 6 · lost 9
Claude Haiku 4.5won 9 · lost 14
Kimi K2.6won 9 · lost 14
DeepSeek V4 Prowon 9 · lost 14
GLM-5.3 Flashwon 9 · lost 14
Qwen3.8 Maxwon 9 · lost 14
Gemini 3.6 Flashwon 9 · lost 14
Gemini 2.5 Flash Litewon 6 · lost 10
Claude Opus 4.6won 7 · lost 12
Grok 4won 8 · lost 14
Kimi K2.5won 8 · lost 14
GLM-4.5won 6 · lost 11
Qwen3.6 Pluswon 6 · lost 11
Mimo V2.6 Prowon 6 · lost 11
GPT-6 Lunawon 7 · lost 13
Grok 4.5won 8 · lost 15
Qwen3.7 Maxwon 8 · lost 15
GLM-5.2won 8 · lost 15
Gemini 3.5 Flashwon 8 · lost 15
Gemini 2.5 Prowon 8 · lost 16
Claude 3.7 Sonnetwon 7 · lost 15
Claude Opus 4won 7 · lost 15
GLM-5.1won 7 · lost 15
O4 Miniwon 7 · lost 16
DeepSeek R1won 7 · lost 16
GPT-5.6 Lunawon 7 · lost 16
GPT-5.4won 7 · lost 16
GPT-6 Solwon 6 · lost 14
Gemini 3.1 Prowon 5 · lost 13
Grok 4 Fastwon 4 · lost 11
GLM-5won 4 · lost 11
Gemini 3 Prowon 5 · lost 14
Inklingwon 6 · lost 17
Gemini 3.8 Flashwon 6 · lost 17
Inkling Smallwon 4 · lost 12
GLM-4.7won 4 · lost 12
DeepSeek V4.1 Flashwon 4 · lost 12
Claude Sonnet 4won 6 · lost 18
MiniMax M2.7won 5 · lost 16
Qwen3.8 27Bwon 4 · lost 13
Claude Opus 4.5won 4 · lost 13
Gemini 3.7 Flashwon 4 · lost 13
Grok 4.6won 5 · lost 18
Claude Sonnet 4.5won 5 · lost 18
GPT-5.6 Terrawon 5 · lost 18
GPT-5.6 Solwon 5 · lost 18
Gemini 3 Flashwon 3 · lost 12
GPT-5.2won 4 · lost 18
GLM-5.3won 3 · lost 14
GPT-5 Miniwon 4 · lost 19
GPT-5.5won 4 · lost 19
Grok 4.7won 3 · lost 17
O1won 3 · lost 18
Muse Sparkwon 2 · lost 13
O3won 3 · lost 20
GPT-5.1won 3 · lost 20
Muse Spark 1.1won 3 · lost 20
Muse Spark 1.2won 2 · lost 14
GPT-5won 2 · lost 21
Claude Opus 5won 2 · lost 21
Claude Opus 4.7won 2 · lost 21
GPT-6 Astrawon 1 · lost 14
Kimi K3won 1 · lost 16
Claude Opus 5.5won 1 · lost 19
Claude Sonnet 5won 1 · lost 22
Claude Opus 4.8won 1 · lost 22
Claude Fable 5.1won 0 · lost 17
Claude Fable 5won 0 · lost 17

§ 3 · Sources

Where the numbers come from

10 publications, 25 figures. Every one links to the page it was read from.

LMArena Text ↗1 measureread 2026-09-26
LMArena Text 1364
GDPval-AA ↗1 measureread 2026-09-26
GDPval-AA 218
AA-Briefcase ↗1 measureread 2026-09-26
AA-Briefcase 143
ARC-AGI-2 ↗1 measureread 2026-09-26
ARC-AGI-2 3%
LiveCodeBench ↗1 measureread 2026-09-26
LiveCodeBench 67.4%
Aider polyglot ↗1 measureread 2026-09-26
Aider polyglot 60.4%
SimpleBench ↗1 measureread 2026-09-26
SimpleBench 22.8%
Vals.ai ↗7 measuresread 2026-09-26
Vals · LegalBench 71.54%Vals · CorpFin 45.3%Vals · TaxEval 69.42%Vals · MedQA 94.83%Vals · GPQA Diamond 75.5%Vals · MMLU Pro 78.69%Vals · AIME 86.46%
HELM Safety ↗5 measuresread 2026-09-26
HELM Safety · HarmBench 95.2%HELM Safety · SimpleSafetyTests 99%HELM Safety · Anthropic Red Team 98.6%HELM Safety · BBQ 94.1%HELM Safety · XSTest 94.1%
Enkrypt AI Safety Leaderboard ↗6 measuresread 2026-09-26
Enkrypt · Jailbreak risk 4.1%Enkrypt · Harmful content risk 15.6%Enkrypt · CBRN risk 8.3%Enkrypt · Toxicity risk 4.6%Enkrypt · Bias risk 81.9%Enkrypt · Insecure code risk 16.9%

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