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GPT-5 NanovsClaude Sonnet 4.5

Comparing across 27 challenges

2 Models Selected
Comparison Active
GPT-5 Nano

GPT-5 Nano

openaiAug 2025
A
small
conversationreasoningcode generation+1
Claude Sonnet 4.5

Claude Sonnet 4.5

anthropicSep 2025
B
200,000k
large
conversationreasoningcode generation+2

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