GPT-5.3 Chat
Nothing here. The model returned empty. We stared at it for a while.
GPT-5.3 Chat vs GPT-5
Compare GPT-5.3 Chat and GPT-5, both from OpenAI, context windows of 128K vs 400K, tested across 46 shared challenges. Updated March 2026.
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GPT-5.3 ChatvsGPT-5
46 fights queued
Why GPT-5.3 Chat?
7 months newerMar 2026
Why GPT-5?
1.4x cheaper overall$1.25/M in · $10.00/M out
3.1x more context400K
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GPT-5.3 ChatGPT-5
12 / 46
Estimate Complexityreasoning
Tests an AI's ability to make educated estimates based on technical knowledge
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2 / 46
AI Board Game Logicreasoning
Tests an AI's ability to understand game rules and strategy
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3 / 46
Logic Puzzlereasoning
Tests an AI's ability to solve a simple but potentially confusing logic puzzle
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4 / 46
Stochastic Consistency Testanalysis
Tests an AI's randomness and creativity
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5 / 46
SVG Layout Challengeimage generation
Tests an AI's ability to generate vector graphics
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6 / 46
Xbox Controller SVG Artimage generation
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
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7 / 46
Generate a Stand-Up Routineconversation
Tests an AI's humor and creative writing ability
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8 / 46
Realistic AI Interviewconversation
Tests an AI's ability to simulate personalities and predict future trends
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Sponsored
9 / 46
Satirical Fake News Headlineconversation
Tests an AI's humor and understanding of current events
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10 / 46
Character Voice Testconversation
Tests an AI's ability to write in distinct character voices
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11 / 46
Minimalist Landing Pageweb design
Tests an AI's ability to generate a complete, working landing page
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12 / 46
Pokémon Battle UI Recreationweb design
Recreate an interactive, nostalgic Pokémon battle UI in a single HTML file.
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