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Alex Albert (@alexalbert__): For reference, Haiku 4.5 came out on October 15th, 2025 so these two columns are less than a year apart. and oh yeah Haiku 5.5 is also much faster and 75% cheaper... https://t.co/1Zt19kdTYC

L3 · BuilderModels & Releases@alexalbert__· 10/7/2026

Essential for developers building AI agents and applications who need to optimize for cost and performance with Claude API models.

AI Summary

Anthropic's Haiku 5.5 is much faster, 75% cheaper, and shows significant performance improvements over Haiku 4.5 released less than a year ago.

Excerpt

For reference, Haiku 4.5 came out on October 15th, 2025 so these two columns are less than a year apart. and oh yeah Haiku 5.5 is also much faster and 75% cheaper... https://t.co/1Zt19kdTYC

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