GPT-5.1 Codex Max
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GPT-5.1 Codex Max vs OpenAI o4-mini
Compare GPT-5.1 Codex Max and OpenAI o4-mini, both from OpenAI, tested across 35 shared challenges. Updated February 2026.
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GPT-5.1 Codex MaxvsOpenAI o4-mini
35 challenges
Why GPT-5.1 Codex Max?
Leads 1 of 1 benchmarks
Stronger on SWE-bench Verified77.9% vs 68.1%
8 months newerDec 2025
Why OpenAI o4-mini?
No standout advantages
Favorites
GPT-5.1 Codex MaxOpenAI o4-mini
12 / 35
Estimate Complexityreasoning
Tests an AI's ability to make educated estimates based on technical knowledge
OpenAI o4-mini
No content available for this output.
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2 / 35
Logic Puzzlereasoning
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
GPT-5.1 Codex Max
No content available for this output.
OpenAI o4-mini
No content available for this output.
Vote
3 / 35
Math Misconception Testreasoning
Tests an AI's understanding of number representation
GPT-5.1 Codex Max
No content available for this output.
OpenAI o4-mini
No content available for this output.
Vote
4 / 35
Stochastic Consistency Testanalysis
Tests an AI's randomness and creativity
GPT-5.1 Codex Max
No content available for this output.
OpenAI o4-mini
No content available for this output.
Vote
5 / 35
SVG Layout Challengeimage generation
Tests an AI's ability to generate vector graphics
GPT-5.1 Codex Max
No content available for this output.
OpenAI o4-mini
No content available for this output.
Vote
6 / 35
Xbox Controller SVG Artimage generation
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
GPT-5.1 Codex Max
No content available for this output.
OpenAI o4-mini
No content available for this output.
Vote
7 / 35
Generate a Stand-Up Routineconversation
Tests an AI's humor and creative writing ability
GPT-5.1 Codex Max
No content available for this output.
OpenAI o4-mini
No content available for this output.
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8 / 35
Realistic AI Interviewconversation
Tests an AI's ability to simulate personalities and predict future trends
GPT-5.1 Codex Max
No content available for this output.
OpenAI o4-mini
No content available for this output.
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9 / 35
Satirical Fake News Headlineconversation
Tests an AI's humor and understanding of current events
GPT-5.1 Codex Max
No content available for this output.
OpenAI o4-mini
No content available for this output.
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10 / 35
Minimalist Landing Pageweb design
Tests an AI's ability to generate a complete, working landing page
GPT-5.1 Codex Max
OpenAI o4-mini
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11 / 35
Pokémon Battle UI Recreationweb design
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
GPT-5.1 Codex Max
No content available for this output.
OpenAI o4-mini
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Sponsored
12 / 35
Mario Level UI Recreationweb design
Recreate an interactive, classic Mario level in a single HTML file.
GPT-5.1 Codex Max
No content available for this output.
OpenAI o4-mini
No content available for this output.
Vote
12 of 35