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FrontierCode 2.0 (Artificial Analysis)

Code · 2026-10-27

Artificial Analysis' implementation of Cognition's FrontierCode 2.0 on all 132 private tasks in real open-source repositories. Stirrup runs three attempts per task with a 500-turn cap and background shell commands, and GPT-6 Luna (medium) judges each attempt against the task's tests and a rubric of blocking and non-blocking checks. Attempts that fail a blocking check or are flagged for looking up the solution score zero; others receive a weighted rubric score, averaged equally over tasks and attempts. This evaluator protocol is kept separate from Cognition's native runs.

Top models (higher is better)

ModelScore
Claude Opus 5.546.4
GPT-6 Astra42.4
GPT-6.1 Terra42.3
Claude Sonnet 5.541.7
GPT-6.1 Sol40.6
Muse Wonder Full37.8
Claude Fable 5.135.7
Claude Haiku 5.534.9
Grok 4.728.7
DeepSeek V4.1 Flash 101728.5
Muse Wonder27.9
Gemini 4 Argon25.7
Kimi K3.1 Pro25.5
GPT-6 Luna25.2
MiMo-V2.6-Pro24.0
Qwen3.8 Max (0902)23.4
Muse Spark 1.323.1
MiniMax M321.9
MiMo-V2.6-Flash21.6
GLM-5.321.6
MiniMax M3.1 Flash20.8
Gemini 3.8 Flash18.7
DeepSeek V4 Pro 081317.1
Ling 3.1 Flash 101917.0
Qwen3.8 27B14.9
Mistral Large 4 Preview13.6
Step 5 Preview12.0
K2 Horizon 375B A23B11.8
Muse Spark Open7.6
Nemotron 3.5 Super VL 120B A12B (precision unspecified)6.1
Gemini 3.5 Flash-Lite6.0
Beam 1.0 501B A23B5.5
Inkling-Small4.8
Inkling3.9
Muse Glimmer 30B1.5
Nemotron 3 Ultra 550B A55B1.1
Command A+ (May 2026, BF16)0.0
Nemotron 3 Nano 4B0.0
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