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GPT-4.1 NanovsClaude Sonnet 4.5

Comparing across 20 challenges

2 Models Selected
Comparison Active
GPT-4.1 Nano

GPT-4.1 Nano

openaiApr 2025
A
Not disclosed
1,047,576k
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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