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Alex Albert
@alexalbert__
Research @AnthropicAI
Joined April 2021
723 Following    158.3K Followers
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...
Haiku 5.5 is a significant step up over Haiku 4.5 across coding, computer use, and knowledge work.