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Claude Haiku 5.5 joins the 5.5 family with lower running costs
What happened
Mike Krieger highlights Claude Haiku 5.5 as built for speed and efficiency, costing 75% less than Haiku 4.5. He describes Opus handling heavy thinking and Haiku handling high-volume work. The quoted @claudeai announcement calls it its cheapest, fastest, and most capable small model, with average running costs around 75% lower than Claude Haiku 4.5. https://twitter.com/claudeai/status/2107894039626277339
Why it matters
The comparison with Haiku 4.5 gives a concrete cost reference for high-volume work, alongside the author's suggested division of labor between Opus and Haiku.
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