Claude Sonnet 4.5 vs GPT-5.1-Codex - AI Model Comparison
Compare capabilities and responses between Claude Sonnet 4.5 by anthropic and GPT-5.1-Codex by openai.
Common Challenges (27)
- Estimate Complexity: Tests an AI's ability to make educated estimates based on technical knowledge...
- AI Board Game Logic: Tests an AI's ability to understand game rules and strategy...
- Logic Puzzle: Tests an AI's ability to solve a simple but potentially confusing logic puzzle...
- Math Misconception Test: Tests an AI's understanding of number representation...
- Stochastic Consistency Test: Tests an AI's randomness and creativity...
- And 22 more challenges...
About Claude Sonnet 4.5
Provider: anthropic
Release Date: 2025-09-29
Context Window: 200000
About GPT-5.1-Codex
Provider: openai
Release Date: 2025-11-13
Context Window: 400000
Claude Sonnet 4.5vsGPT-5.1-Codex
Comparing across 27 challenges
conversationreasoningcode generation+2
conversationreasoningcode generation+1
Battle Arena
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