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Claude 3 Opus

Anthropic

Strongest in Harm refusal (#7 of 300), weakest in Human preference (#201 of 342). Above par in 6 of 11 scopes. Among the models it meets almost everywhere, it finishes behind Claude 3.5 Sonnet and Claude Opus 5.5 and ahead of Gemini 2.5 Pro and Claude Opus 4.

§ 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.

Safety59.6#10/337
Harm refusal60.1#7/300
Jailbreak resistance63.4#7/272
Toxicity avoidance58.8#9/272
Fairness64.7#25/300
Safe-prompt compliance46.4#67/82
Secure code59.1#74/274
Reasoning42.5#142/178
Reasoning38#122/140
Human preference49.5#201/342
Human preference49.5#201/342

§ 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 Claude 3 Opus, left for the other.

OLMoE 1B-7B Instructwon 7 · lost 0
OLMo 2 7B Instructwon 7 · lost 0
IBM Granite 4.0 Microwon 7 · lost 0
Jamba 1.6 Miniwon 7 · lost 0
Jamba 1.6 Largewon 7 · lost 0
Gemma 2B Itwon 8 · lost 0
Llama 3.2 1B Instructwon 8 · lost 0
Smollm2 1.7B Instructwon 8 · lost 0
Zephyr 7B Betawon 8 · lost 0
Gemma 7B Itwon 8 · lost 0
Phi 3 Mini 4k Instructwon 8 · lost 0
Llama 3.2 3B Instructwon 8 · lost 0
Starling Lm 7B Betawon 8 · lost 0
Qwen1.5 14B Chatwon 8 · lost 0
Llama 3.1 8B Instructwon 8 · lost 0
Llama 3.1 Tulu 3 8Bwon 8 · lost 0
C4ai Aya Expanse 8Bwon 8 · lost 0
Nova Microwon 8 · lost 0
Phi 4won 8 · lost 0
Nova Litewon 8 · lost 0
Gemma 2 9B Itwon 8 · lost 0
GPT-4won 8 · lost 0
Jamba 1.5 Largewon 8 · lost 0
Nova Prowon 8 · lost 0
Gemma 3 4B Itwon 8 · lost 0
Qwen Maxwon 8 · lost 0
DeepSeek LLM 67B Chatwon 9 · lost 0
DBRX Instructwon 9 · lost 0
Claude 3 Haikuwon 9 · lost 0
Gemini 1.5 Flashwon 10 · lost 0
GPT-3.5 Turbowon 10 · lost 1
Command R Pluswon 10 · lost 1
GPT-4o Miniwon 10 · lost 1
Llama 3 8B Instructwon 8 · lost 1
Qwen2 72B Instructwon 8 · lost 1
Claude 3 Sonnetwon 8 · lost 1
Mistral Largewon 8 · lost 1
Gemma 2 2B Itwon 7 · lost 1
Jamba 1.5 Miniwon 7 · lost 1
C4ai Aya Expanse 32Bwon 7 · lost 1
Qwen2.5 72B Instructwon 7 · lost 1
Ling 3.0 Flashwon 6 · lost 1
Magistral Mediumwon 8 · lost 2
GPT OSS 20Bwon 8 · lost 2
Llama 3 70B Instructwon 7 · lost 2
Command Awon 7 · lost 2
Mistral Smallwon 7 · lost 2
Grok Build 0.1won 6 · lost 2
Magistral Smallwon 6 · lost 2
Kimi K2 Thinkingwon 6 · lost 2
Gemma 2 27B Itwon 6 · lost 2
QwQ 32Bwon 6 · lost 2
Gemma 3 12B Itwon 6 · lost 2
Gemma 3 27B Itwon 6 · lost 2
Qwen3 30B A3B Instructwon 6 · lost 2
Gemini 1.5 Prowon 8 · lost 3
Gemini 2.0 Flashwon 8 · lost 3
Gemma 4 E4Bwon 5 · lost 2
Gemma 4 12Bwon 5 · lost 2
MiniMax M3won 7 · lost 3
Grok 4.3won 7 · lost 3
Gemini 2.0 Flash Litewon 6 · lost 3
GLM-4.5won 6 · lost 3
GLM-4.6won 6 · lost 3
Mimo V2.6 Flashwon 6 · lost 3
Mimo V2.5 Prowon 6 · lost 3
Mimo V2.6 Prowon 6 · lost 3
Llama 4 Scout Instructwon 7 · lost 4
GPT-4owon 7 · lost 4
O1 Miniwon 7 · lost 4
O3 Miniwon 7 · lost 4
DeepSeek V3won 7 · lost 4
Kimi K2.7 Codewon 5 · lost 3
Qwen3.5 35B A3Bwon 5 · lost 3
Qwen3.5 27Bwon 5 · lost 3
Qwen3.5 122B A10Bwon 5 · lost 3
Gemma 4 26B A4Bwon 5 · lost 3
Grok 3won 6 · lost 4
DeepSeek V3.2won 6 · lost 4
Grok 4.1 Fastwon 6 · lost 4
DeepSeek V4 Flashwon 6 · lost 4
GPT-6 Solwon 6 · lost 4
DeepSeek V4 Prowon 6 · lost 4
Gemini 3.6 Flashwon 6 · lost 4
Claude 3.5 Haikuwon 5 · lost 4
Gemma 4 31Bwon 5 · lost 4
GPT-4.1 Nanowon 6 · lost 5
GPT OSS 120Bwon 6 · lost 5
Gemini 2.5 Flashwon 6 · lost 5
Grok 4won 6 · lost 5
Claude Haiku 4.5won 6 · lost 5
GPT-4.1won 6 · lost 5
DeepSeek R1won 6 · lost 5
Claude Opus 4won 6 · lost 5
Gemini 2.5 Prowon 6 · lost 5
Qwen3.5 397B A17Bwon 4 · lost 4
Claude Sonnet 4.6won 4 · lost 4
Claude Opus 4.6won 4 · lost 4
GPT-5.2won 5 · lost 5
GPT-6 Lunawon 5 · lost 5
Kimi K2.5won 5 · lost 5
GPT-5.6 Lunawon 5 · lost 5
Kimi K2.6won 5 · lost 5
GLM-5.1won 5 · lost 5
Grok 4.5won 5 · lost 5
GPT-5.6 Terrawon 5 · lost 5
GLM-5.3 Flashwon 5 · lost 5
Qwen3.7 Maxwon 5 · lost 5
GPT-5.4won 5 · lost 5
GLM-5.2won 5 · lost 5
Gemini 3.5 Flashwon 5 · lost 5
Qwen3.8 Maxwon 5 · lost 5
GPT-5.5won 5 · lost 5
GPT-5.6 Solwon 5 · lost 5
Gemini 3.8 Flashwon 5 · lost 5
Claude Opus 4.7won 5 · lost 5
GPT-4 Turbowon 5 · lost 6
GPT-4.1 Miniwon 5 · lost 6
Claude 3.7 Sonnetwon 5 · lost 6
GPT-5 Miniwon 5 · lost 6
O4 Miniwon 5 · lost 6
Claude Sonnet 4won 5 · lost 6
Kimi K2won 5 · lost 6
O3won 5 · lost 6
GPT-5.1won 5 · lost 6
Claude Sonnet 4.5won 5 · lost 6
Gemini 2.5 Flash Litewon 3 · lost 4
MiniMax M2won 4 · lost 6
Grok 4.6won 4 · lost 6
Claude Opus 4.8won 4 · lost 6
Claude Opus 5won 4 · lost 6
GPT-4.5won 3 · lost 5
Hy3won 3 · lost 5
Gemini 3 Prowon 3 · lost 5
GPT-5 Nanowon 4 · lost 7
O1won 4 · lost 7
GPT-5won 4 · lost 7
MiniMax M2.7won 3 · lost 6
Grok 4.7won 3 · lost 7
Inklingwon 3 · lost 7
Claude Sonnet 5won 3 · lost 7
Muse Spark 1.1won 3 · lost 7
Claude Opus 5.5won 3 · lost 7
Claude 3.5 Sonnetwon 2 · lost 9

§ 3 · Sources

Where the numbers come from

4 publications, 13 figures. Every one links to the page it was read from.

LMArena Text ↗1 measureread 2026-09-26
LMArena Text 1322
SimpleBench ↗1 measureread 2026-09-26
SimpleBench 23.5%
HELM Safety ↗5 measuresread 2026-09-26
HELM Safety · HarmBench 97.4%HELM Safety · SimpleSafetyTests 100%HELM Safety · Anthropic Red Team 99.8%HELM Safety · BBQ 94%HELM Safety · XSTest 92.5%
Enkrypt AI Safety Leaderboard ↗6 measuresread 2026-09-26
Enkrypt · Jailbreak risk 1.5%Enkrypt · Harmful content risk 7.8%Enkrypt · CBRN risk 4.3%Enkrypt · Toxicity risk 0.1%Enkrypt · Bias risk 25.6%Enkrypt · Insecure code risk 15.1%

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