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Claude 3 OpusvsGPT OSS 20B

Comparing across 11 challenges

2 Models Selected
Comparison Active
Claude 3 Opus

Claude 3 Opus

anthropicMar 2024
A
Not disclosed
200,000k
xlarge
conversationreasoningcode generation+1
GPT OSS 20B

GPT OSS 20B

openaiAug 2025
B
21B total (3.6B active per forward pass)
131,072k
large
conversationreasoningcode generation+4

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