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Anthropic Launches Claude Haiku 5.5
Claude officially launches Claude Haiku 5.5, calling it its fastest, most capable small model, costing ~75% less to run than Haiku 4.5.
Key points
- Anthropic released Claude Haiku 5.5, which it calls its cheapest, fastest, and most capable small model.
- On average, Claude Haiku 5.5 costs around 75% less to run than Claude Haiku 4.5.
- The original poster said Haiku 5.5 is a significant step up over Haiku 4.5 across coding, computer use, and knowledge work.
Key points and the reaction summary are written by AI from the posts on this page. Check the original post. How we use AI
Original post
Top replies on X
Reaction on X: Replies were largely congratulatory, and the original poster added that Haiku 5.5 is a significant step up over Haiku 4.5 in coding, computer use, and knowledge work. One reply joked that Sam Altman would react to claims that Claude Haiku 5.5 scores higher than GPT-6 Luna.
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From @claudeai, @elonmusk, @Alisina_ai and others. Spam removed, with English and Chinese translations.

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