Claude Haiku 4.5

The fastest, most affordable coding model

Artificial IntelligenceNo CodeDevelopment 5 (6) Launched Oct 17, 2025

About Claude Haiku 4.5

Anthropic just unveiled Claude Haiku 4.5, its fastest and most efficient small model yet. Haiku 4.5 matches the coding performance of Claude Sonnet 4, once a frontier model, but now runs 2x faster and costs one-third as much. I

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