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Claude Haiku 5.5: What’s New and How to Use It for Fast, Cheap AI Workflows
Anthropic released Claude Haiku 5.5 on October 7, 2026, and calls it its cheapest, fastest, and most capable small model. The API model ID is claude-haiku-5-5, and prompts up to 100,000 tokens cost $0.10 per million input tokens and $0.50…