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Mercury 2.5

Inception

Strongest in Cybersecurity (#40 of 47), weakest in Agents (#239 of 298). Above par in 0 of 11 scopes. Among the models it meets almost everywhere, it finishes behind Claude Opus 5.5 and Claude Fable 5.1 and ahead of Mistral Small 3.1 24B Instruct and Llama 4 Scout Instruct.

§ 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.

Reasoning39.9#169/195
Mathematics34.7#143/152
Coding38.7#174/179
Agentic coding38#170/173
Professional37.8#186/194
Cybersecurity32.6#40/47
Legal43.3#136/173
Medical32.4#145/149
Finance35#156/162
Agents43.6#239/298
Knowledge work39.8#155/208

§ 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 Mercury 2.5, left for the other.

Llama 4 Scout Instructwon 5 · lost 3
GPT-4o miniwon 4 · lost 5
Laguna XS.2won 3 · lost 4
Laguna M.1won 3 · lost 4
Llama 3.3 70B Instructwon 3 · lost 4
GPT-4.1 nanowon 4 · lost 6
Magistral Small 1.2won 3 · lost 5
Ling 3.0 Flash Finwon 3 · lost 6
DeepSeek R1won 3 · lost 7
Gemini 3.1 Flash-Litewon 3 · lost 7
GPT-4owon 3 · lost 7
Nemotron 3.5 Super VLwon 2 · lost 5
Gemma 4 31Bwon 2 · lost 6
Magistral Medium 1.2won 2 · lost 6
Claude 3.5 Haikuwon 2 · lost 7
Grok 4.1 Fastwon 2 · lost 7
DeepSeek V3won 2 · lost 8
O3 Miniwon 2 · lost 8
Mistral Large 3won 2 · lost 8
Gemini 2.5 Prowon 2 · lost 8
Mistral Medium 3.5won 2 · lost 8
Claude 3.5 Sonnetwon 1 · lost 6
Qwen3.7 Pluswon 1 · lost 6
GPT-5 nanowon 1 · lost 6
GPT-6.1 Terrawon 1 · lost 6
Grok 4.20won 1 · lost 7
Gemini 2.0 Flashwon 1 · lost 7
Mistral Medium 3.1won 1 · lost 7
GPT OSS 20Bwon 1 · lost 7
GPT-5.4 miniwon 1 · lost 8
Command Awon 1 · lost 8
GPT OSS 120Bwon 1 · lost 9
GPT-5.4 nanowon 1 · lost 9
Grok 4.3won 1 · lost 9
MiMo V2.5won 1 · lost 9
Inklingwon 1 · lost 10
Gemini 3.5 Flash-Litewon 1 · lost 10
Gemini 3.8 Flashwon 1 · lost 10
Gemini 3.6 Flashwon 1 · lost 10
Qwen3.8 Maxwon 1 · lost 10
Gemini 3.7 Flashwon 1 · lost 10
MiniMax M3won 1 · lost 10
GPT-6.1 Solwon 1 · lost 10
GPT-6 Astrawon 1 · lost 10
Gemini 2.5 Flash-Litewon 0 · lost 7
MiniMax M3.1 Flashwon 0 · lost 7
Muse Emberwon 0 · lost 7
Gemini 4 Carbonwon 0 · lost 7
Grok 4 Fastwon 0 · lost 8
Qwen3 Maxwon 0 · lost 8
Gemini 3 Flashwon 0 · lost 8
Qwen 3.5 Pluswon 0 · lost 8
Kimi K2 Thinkingwon 0 · lost 8
MiniMax M2.5won 0 · lost 8
GLM-5won 0 · lost 8
Qwen3.5 Flashwon 0 · lost 8
DeepSeek V4won 0 · lost 8
Claude Opus 4.6won 0 · lost 8
MiniMax M2.1won 0 · lost 8
Grok 3won 0 · lost 8
Grok 3 Miniwon 0 · lost 8
O1won 0 · lost 8
Ember 1won 0 · lost 8
Claude Opus 4won 0 · lost 8
Muse Spark Openwon 0 · lost 8
Beam 1.0won 0 · lost 8
Kimi K3.1 Prowon 0 · lost 8
Inkling 2 Smallwon 0 · lost 8
Claude Fable 5.2won 0 · lost 8
Hy4won 0 · lost 9
Claude 3.7 Sonnetwon 0 · lost 9
Ling 3.0 Flashwon 0 · lost 9
Step 5won 0 · lost 9
Qwen3.6 27Bwon 0 · lost 9
O3won 0 · lost 9
O4 Miniwon 0 · lost 9
GPT-4.1won 0 · lost 9
GPT-5.2won 0 · lost 9
Gemini 2.5 Flashwon 0 · lost 9
Kimi K2won 0 · lost 9
Grok 4won 0 · lost 9
Gemini 3 Prowon 0 · lost 9
Claude Opus 4.5won 0 · lost 9
Gemini 3.1 Prowon 0 · lost 10
Claude Sonnet 4won 0 · lost 10
Muse Sparkwon 0 · lost 10
Gemini 3.5 Flashwon 0 · lost 10
GPT-4.1 miniwon 0 · lost 10
MiniMax M2.7won 0 · lost 10
Mistral Large 4won 0 · lost 10
GPT-5 miniwon 0 · lost 10
GPT-5.1won 0 · lost 10
GPT-5won 0 · lost 10
Qwen3.6 Pluswon 0 · lost 10
MiMo V2.5 Prowon 0 · lost 10
GLM-4.7won 0 · lost 10
Qwen3.7 Maxwon 0 · lost 10
GLM-5.1won 0 · lost 10
Kimi K2.5won 0 · lost 10
Claude Haiku 4.5won 0 · lost 10
DeepSeek V3.2won 0 · lost 10
GPT-5.4won 0 · lost 10
Kimi K2.6won 0 · lost 10
GPT-5.5won 0 · lost 10
Muse Spark 1.3won 0 · lost 10
GLM-5.2won 0 · lost 10
Claude Opus 4.7won 0 · lost 10
Muse Spark 1.1won 0 · lost 10
Claude Sonnet 4.5won 0 · lost 10
Claude Sonnet 4.6won 0 · lost 10
Claude Opus 4.8won 0 · lost 10
GLM-4.6won 0 · lost 10
Muse Wonderwon 0 · lost 10
Claude Fable 5won 0 · lost 10
Qwen3.8 27Bwon 0 · lost 11
GPT-6 Lunawon 0 · lost 11
Grok 4.5won 0 · lost 11
Inkling Smallwon 0 · lost 11
GLM-5.3 Flashwon 0 · lost 11
GPT-5.6 Terrawon 0 · lost 11
Grok 4.6won 0 · lost 11
DeepSeek V4 Flashwon 0 · lost 11
DeepSeek V4 Prowon 0 · lost 11
Kimi K3won 0 · lost 11
DeepSeek V4.1 Flashwon 0 · lost 11
Muse Spark 1.2won 0 · lost 11
GPT-5.6 Lunawon 0 · lost 11
Claude Sonnet 5won 0 · lost 11
MiMo V2.6 Prowon 0 · lost 11
Grok 4.7won 0 · lost 11
GPT-5.6 Solwon 0 · lost 11
GPT-6 Solwon 0 · lost 11
Claude Haiku 5.5won 0 · lost 11
MiMo V2.6 Flashwon 0 · lost 11
GLM-5.3won 0 · lost 11
Gemini 4 Argonwon 0 · lost 11
Muse Wonder Fullwon 0 · lost 11
Claude Opus 5won 0 · lost 11
Claude Sonnet 5.5won 0 · lost 11
Claude Fable 5.1won 0 · lost 11
Claude Opus 5.5won 0 · lost 11

§ 3 · Sources

Where the numbers come from

3 publications, 11 figures. Every one links to the page it was read from.

GDPval-AA ↗1 measureread 2026-11-10
GDPval-AA 482
AA-Briefcase ↗1 measureread 2026-11-10
AA-Briefcase 378
Vals.ai ↗9 measuresread 2026-11-10
Vals · Legal Research Bench 4.33%Vals · LegalBench 83.06%Vals · Finance Agent 18.89%Vals · MedCode 31.33%Vals · MedScribe 55.09%Vals · CyberBench 45.48%Vals · Vibe Code Bench 3.68% (OpenHands)Vals · Code Migration 4.52%Vals · ProofBench 3%

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