GPT-5.1-Codex
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GPT-5.1-Codex vs Aurora Alpha
Compare GPT-5.1-Codex by OpenAI against Aurora Alpha by OpenRouter, context windows of 400K vs 128K, tested across 52 shared challenges. Updated February 2026.
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GPT-5.1-CodexvsAurora Alpha
47 challenges
Why GPT-5.1-Codex?
3.1x more context400K
Why Aurora Alpha?
3 months newerFeb 2026
Favorites
GPT-5.1-CodexAurora Alpha
12 / 47
Estimate Complexityreasoning
Tests an AI's ability to make educated estimates based on technical knowledge
Aurora Alpha
No content available for this output.
Vote
2 / 47
AI Board Game Logicreasoning
Tests an AI's ability to understand game rules and strategy
GPT-5.1-Codex
No content available for this output.
Aurora Alpha
No content available for this output.
Vote
3 / 47
Logic Puzzlereasoning
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
GPT-5.1-Codex
No content available for this output.
Aurora Alpha
No content available for this output.
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4 / 47
Stochastic Consistency Testanalysis
Tests an AI's randomness and creativity
GPT-5.1-Codex
No content available for this output.
Aurora Alpha
No content available for this output.
Vote
5 / 47
SVG Layout Challengeimage generation
Tests an AI's ability to generate vector graphics
GPT-5.1-Codex
No content available for this output.
Aurora Alpha
No content available for this output.
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6 / 47
Xbox Controller SVG Artimage generation
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
GPT-5.1-Codex
No content available for this output.
Aurora Alpha
No content available for this output.
Vote
7 / 47
Generate a Stand-Up Routineconversation
Tests an AI's humor and creative writing ability
GPT-5.1-Codex
No content available for this output.
Aurora Alpha
No content available for this output.
Vote
8 / 47
Realistic AI Interviewconversation
Tests an AI's ability to simulate personalities and predict future trends
GPT-5.1-Codex
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Aurora Alpha
No content available for this output.
Vote
9 / 47
Satirical Fake News Headlineconversation
Tests an AI's humor and understanding of current events
GPT-5.1-Codex
No content available for this output.
Aurora Alpha
No content available for this output.
Vote
10 / 47
Character Voice Testconversation
Tests an AI's ability to write in distinct character voices
GPT-5.1-Codex
No content available for this output.
Aurora Alpha
No content available for this output.
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11 / 47
Minimalist Landing Pageweb design
Tests an AI's ability to generate a complete, working landing page
GPT-5.1-Codex
Aurora Alpha
Vote
12 / 47
Pokémon Battle UI Recreationweb design
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
GPT-5.1-Codex
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Aurora Alpha
No content available for this output.
Vote
12 of 47