GPT-5.1 Chat
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GPT-5.1 Chat vs Claude Opus 4.1
Compare GPT-5.1 Chat by OpenAI against Claude Opus 4.1 by Anthropic, context windows of 128K vs 200K, tested across 27 shared challenges. Updated February 2026.
FAQ
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GPT-5.1 ChatvsClaude Opus 4.1
27 challenges
Why GPT-5.1 Chat?
7.8x cheaper overall$1.25/M in · $10.00/M out
Leads 1 of 1 benchmarks
Stronger on SWE-bench Verified76.3% vs 74.5%
3 months newerNov 2025
Why Claude Opus 4.1?
1.6x more context200K
Favorites
GPT-5.1 ChatClaude Opus 4.1
12 / 27
Logic Puzzlereasoning
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
Claude Opus 4.1
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Vote
2 / 27
Stochastic Consistency Testanalysis
Tests an AI's randomness and creativity
GPT-5.1 Chat
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Claude Opus 4.1
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Vote
3 / 27
Xbox Controller SVG Artimage generation
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
GPT-5.1 Chat
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Claude Opus 4.1
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Vote
4 / 27
Realistic AI Interviewconversation
Tests an AI's ability to simulate personalities and predict future trends
GPT-5.1 Chat
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Claude Opus 4.1
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5 / 27
Satirical Fake News Headlineconversation
Tests an AI's humor and understanding of current events
GPT-5.1 Chat
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Claude Opus 4.1
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Vote
6 / 27
Minimalist Landing Pageweb design
Tests an AI's ability to generate a complete, working landing page
GPT-5.1 Chat
Claude Opus 4.1
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7 / 27
Mario Level UI Recreationweb design
Recreate an interactive, classic Mario level in a single HTML file.
GPT-5.1 Chat
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Claude Opus 4.1
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8 / 27
Dark Mode Dashboardweb design
Tests an AI's UI design skills with theming support
GPT-5.1 Chat
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Claude Opus 4.1
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Vote
9 / 27
The Sentience Testreasoning
Tests an AI's ability to engage in philosophical discourse about AI rights
GPT-5.1 Chat
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Claude Opus 4.1
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Vote
10 / 27
Surprise Animal SVGimage generation
Generate SVG art of a randomly chosen animal in a setting of its choosing.
GPT-5.1 Chat
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Claude Opus 4.1
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Vote
11 / 27
Simple 7-Ingredient Recipeconversation
Generate a unique and simple recipe with common ingredients.
GPT-5.1 Chat
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Claude Opus 4.1
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Vote
12 / 27
Beginner's Longevity Planreasoning
Create a starter plan for improving long-term health.
GPT-5.1 Chat
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Claude Opus 4.1
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Vote
12 of 27