Claude Sonnet 4.6
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Claude Sonnet 4.6 vs GPT-5.1 Codex Max
Compare Claude Sonnet 4.6 by Anthropic against GPT-5.1 Codex Max by OpenAI, tested across 52 shared challenges. Updated February 2026.
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Claude Sonnet 4.6vsGPT-5.1 Codex Max
47 challenges
Why Claude Sonnet 4.6?
Leads 1 of 1 benchmarks
3 months newerFeb 2026
Why GPT-5.1 Codex Max?
No standout advantages
Favorites
Claude Sonnet 4.6GPT-5.1 Codex Max
12 / 47
Estimate Complexityreasoning
Tests an AI's ability to make educated estimates based on technical knowledge
GPT-5.1 Codex Max
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2 / 47
AI Board Game Logicreasoning
Tests an AI's ability to understand game rules and strategy
Claude Sonnet 4.6
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GPT-5.1 Codex Max
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3 / 47
Logic Puzzlereasoning
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
Claude Sonnet 4.6
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GPT-5.1 Codex Max
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4 / 47
Stochastic Consistency Testanalysis
Tests an AI's randomness and creativity
Claude Sonnet 4.6
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GPT-5.1 Codex Max
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5 / 47
SVG Layout Challengeimage generation
Tests an AI's ability to generate vector graphics
Claude Sonnet 4.6
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GPT-5.1 Codex Max
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6 / 47
Xbox Controller SVG Artimage generation
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
Claude Sonnet 4.6
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GPT-5.1 Codex Max
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7 / 47
Generate a Stand-Up Routineconversation
Tests an AI's humor and creative writing ability
Claude Sonnet 4.6
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GPT-5.1 Codex Max
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8 / 47
Realistic AI Interviewconversation
Tests an AI's ability to simulate personalities and predict future trends
Claude Sonnet 4.6
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GPT-5.1 Codex Max
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9 / 47
Satirical Fake News Headlineconversation
Tests an AI's humor and understanding of current events
Claude Sonnet 4.6
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GPT-5.1 Codex Max
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10 / 47
Character Voice Testconversation
Tests an AI's ability to write in distinct character voices
Claude Sonnet 4.6
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GPT-5.1 Codex Max
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11 / 47
Minimalist Landing Pageweb design
Tests an AI's ability to generate a complete, working landing page
Claude Sonnet 4.6
GPT-5.1 Codex Max
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12 / 47
Pokémon Battle UI Recreationweb design
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
Claude Sonnet 4.6
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GPT-5.1 Codex Max
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12 of 47