Claude Opus 4.6
No content available for this output.
Claude Opus 4.6 vs GPT OSS 20B
Compare Claude Opus 4.6 by Anthropic against GPT OSS 20B by OpenAI, context windows of 1.0M vs 131K, tested across 52 shared challenges. Updated February 2026.
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Claude Opus 4.6vsGPT OSS 20B
47 challenges
Why Claude Opus 4.6?
7.6x more context1.0M
6 months newerFeb 2026
Why GPT OSS 20B?
250x cheaper overall$0.02/M in · $0.10/M out
Favorites
Claude Opus 4.6GPT OSS 20B
12 / 47
Estimate Complexityreasoning
Tests an AI's ability to make educated estimates based on technical knowledge
GPT OSS 20B
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2 / 47
AI Board Game Logicreasoning
Tests an AI's ability to understand game rules and strategy
Claude Opus 4.6
No content available for this output.
GPT OSS 20B
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3 / 47
Logic Puzzlereasoning
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
Claude Opus 4.6
No content available for this output.
GPT OSS 20B
No content available for this output.
Vote
4 / 47
Stochastic Consistency Testanalysis
Tests an AI's randomness and creativity
Claude Opus 4.6
No content available for this output.
GPT OSS 20B
No content available for this output.
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5 / 47
SVG Layout Challengeimage generation
Tests an AI's ability to generate vector graphics
Claude Opus 4.6
No content available for this output.
GPT OSS 20B
No content available for this output.
Vote
6 / 47
Xbox Controller SVG Artimage generation
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
Claude Opus 4.6
No content available for this output.
GPT OSS 20B
No content available for this output.
Vote
7 / 47
Generate a Stand-Up Routineconversation
Tests an AI's humor and creative writing ability
Claude Opus 4.6
No content available for this output.
GPT OSS 20B
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8 / 47
Realistic AI Interviewconversation
Tests an AI's ability to simulate personalities and predict future trends
Claude Opus 4.6
No content available for this output.
GPT OSS 20B
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9 / 47
Satirical Fake News Headlineconversation
Tests an AI's humor and understanding of current events
Claude Opus 4.6
No content available for this output.
GPT OSS 20B
No content available for this output.
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10 / 47
Character Voice Testconversation
Tests an AI's ability to write in distinct character voices
Claude Opus 4.6
No content available for this output.
GPT OSS 20B
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11 / 47
Minimalist Landing Pageweb design
Tests an AI's ability to generate a complete, working landing page
Claude Opus 4.6
GPT OSS 20B
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12 / 47
Pokémon Battle UI Recreationweb design
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
Claude Opus 4.6
No content available for this output.
GPT OSS 20B
No content available for this output.
Vote
12 of 47