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Claude 3 HaikuvsClaude Sonnet 4.5

Comparing across 15 challenges

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Claude 3 Haiku

Claude 3 Haiku

anthropicMar 2024
A
Not disclosed
200,000k
medium
conversationanalysissummarization
Claude Sonnet 4.5

Claude Sonnet 4.5

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

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