GPT-5.1 Chat
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GPT-5.1 Chat vs Claude Sonnet 4
Compare GPT-5.1 Chat by OpenAI against Claude Sonnet 4 by Anthropic, context windows of 128K vs 200K, tested across 33 shared challenges. Updated February 2026.
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GPT-5.1 ChatvsClaude Sonnet 4
33 challenges
Why GPT-5.1 Chat?
1.6x cheaper overall$1.25/M in · $10.00/M out
Leads 1 of 1 benchmarks
Stronger on SWE-bench Verified76.3% vs 72.7%
6 months newerNov 2025
Why Claude Sonnet 4?
1.6x more context200K
Favorites
GPT-5.1 ChatClaude Sonnet 4
12 / 33
Logic Puzzlereasoning
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
Claude Sonnet 4
I need to think through this step-by-step.
Given information:
- Sally is a girl
- Sally has 3 brothers
- Each brother has 2 sisters
Let me work out how many sisters are in the family total.
If each of Sally's 3 brothers has 2 sisters, and all the brothers are in the same family, then there must be 2 sisters total in the family.
Since Sally is one of those sisters, and there are 2 sisters total, Sally must have 1 sister.
Therefore, Sally has 1 sister.
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2 / 33
Math Misconception Testreasoning
Tests an AI's understanding of number representation
GPT-5.1 Chat
No content available for this output.
Claude Sonnet 4
No content available for this output.
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3 / 33
Stochastic Consistency Testanalysis
Tests an AI's randomness and creativity
GPT-5.1 Chat
No content available for this output.
Claude Sonnet 4
Here are 5 jokes for you:
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Why don't scientists trust atoms? Because they make up everything!
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I told my wife she was drawing her eyebrows too high. She looked surprised.
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Why don't eggs tell jokes? They'd crack each other up!
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I'm reading a book about anti-gravity. It's impossible to put down!
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Why did the scarecrow win an award? He was outstanding in his field!
All 5 jokes are unique - each one has a different setup, punchline, and comedic concept. They cover different types of wordplay: scientific puns (#1, #4), visual humor (#2), food puns (#3), and agricultural wordplay (#5).
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4 / 33
SVG Layout Challengeimage generation
Tests an AI's ability to generate vector graphics
GPT-5.1 Chat
No content available for this output.
Claude Sonnet 4
No content available for this output.
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5 / 33
Xbox Controller SVG Artimage generation
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
GPT-5.1 Chat
No content available for this output.
Claude Sonnet 4
No content available for this output.
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6 / 33
Generate a Stand-Up Routineconversation
Tests an AI's humor and creative writing ability
GPT-5.1 Chat
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Claude Sonnet 4
No content available for this output.
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7 / 33
Pokémon Battle UI Recreationweb design
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
GPT-5.1 Chat
No content available for this output.
Claude Sonnet 4
No content available for this output.
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8 / 33
Mario Level UI Recreationweb design
Recreate an interactive, classic Mario level in a single HTML file.
GPT-5.1 Chat
No content available for this output.
Claude Sonnet 4
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9 / 33
Linear App Cloneweb design
Tests an AI's ability to replicate an existing UI with Tailwind CSS
GPT-5.1 Chat
No content available for this output.
Claude Sonnet 4
No content available for this output.
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10 / 33
Interactive Catan Boardweb design
Tests an AI's ability to create interactive web elements
GPT-5.1 Chat
No content available for this output.
Claude Sonnet 4
No content available for this output.
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11 / 33
World Map SVGimage generation
Tests an AI's ability to create a detailed world map in SVG format
GPT-5.1 Chat
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Claude Sonnet 4
No content available for this output.
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Sponsored
12 / 33
Random Tailwind Webappweb design
Generate a single-page, self-contained HTML webapp using Tailwind CSS for a randomly chosen category/industry/niche.
GPT-5.1 Chat
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Claude Sonnet 4
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12 of 33