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Claude Haiku 5.5

L4 · DeveloperModels & ReleasesSimon Willison's Blog· 10/7/2026

Detailed API pricing analysis and technical specifications for developers evaluating model choices for cost-sensitive applications.

AI Summary

Anthropic released Claude Haiku 5.5 with competitive pricing ($0.10/$0.50 per million tokens) matching GPT-6 Luna, plus new API credits for subscribers.

Excerpt

Pelicans and a bunch of notes on the pricing of the new Claude Haiku 5.5 simonwillison.net/2026/Oct/7/c...

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