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ChatGPT-4o (March 2025)vsClaude Opus 4.5

Comparing across 14 challenges

2 Models Selected
Comparison Active
ChatGPT-4o (March 2025)

ChatGPT-4o (March 2025)

openaiMar 2025
A
Not disclosed
128,000k
xlarge
conversationreasoninganalysis+1
Claude Opus 4.5

Claude Opus 4.5

anthropicNov 2025
B
xlarge
conversationreasoningcode generation+2

Battle Arena

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