GPT-5 Codex
Nothing here. The model returned empty. We stared at it for a while.
GPT-5 Codex vs GPT-5.4
Compare GPT-5 Codex and GPT-5.4, both from OpenAI, tested across 48 shared challenges. Updated March 2026.
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GPT-5 CodexvsGPT-5.4
43 fights queued
Why GPT-5 Codex?
Dead even. This one’s a coin flip.
Why GPT-5.4?
5 months newerMar 2026
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GPT-5 CodexGPT-5.4
12 / 43
Estimate Complexityreasoning
Tests an AI's ability to make educated estimates based on technical knowledge
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2 / 43
AI Board Game Logicreasoning
Tests an AI's ability to understand game rules and strategy
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3 / 43
Logic Puzzlereasoning
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
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4 / 43
Stochastic Consistency Testanalysis
Tests an AI's randomness and creativity
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5 / 43
SVG Layout Challengeimage generation
Tests an AI's ability to generate vector graphics
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6 / 43
Xbox Controller SVG Artimage generation
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
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7 / 43
Generate a Stand-Up Routineconversation
Tests an AI's humor and creative writing ability
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8 / 43
Realistic AI Interviewconversation
Tests an AI's ability to simulate personalities and predict future trends
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9 / 43
Satirical Fake News Headlineconversation
Tests an AI's humor and understanding of current events
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10 / 43
Character Voice Testconversation
Tests an AI's ability to write in distinct character voices
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11 / 43
Minimalist Landing Pageweb design
Tests an AI's ability to generate a complete, working landing page
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12 / 43
Pokémon Battle UI Recreationweb design
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
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