AI Disruption

AI Disruption

Claude Haiku 4.5: Faster, 1/3 Cost of Sonnet 4

Claude Haiku 4.5: Faster, 1/3 the cost of Sonnet 4. New lightweight AI model delivers high performance for coding & real-time tasks.

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Meng Li
Oct 16, 2025
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Claude Haiku 4.5 Released (New) Cheap Model That's Coding Crazy Fast ( I  Just Tested) | by Joe Njenga | AI Software Engineer | Oct, 2025 | Medium

Just two weeks after their last product launch, Anthropic has made another move.

Latest news: Anthropic has released the lightweight model Claude Haiku 4.5, focusing on “cheaper and faster” performance.

According to Anthropic, Claude Haiku 4.5’s coding performance is comparable to the mid-to-high-end model Claude Sonnet 4 (which Anthropic released 5 months ago), but at a lower cost—$1 per million input tokens and $5 per million output tokens, only one-third the cost of Claude Sonnet 4. Meanwhile, its inference speed has more than doubled.

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In the words of an Anthropic spokesperson: “Haiku 4.5 represents a significant leap in performance, now essentially as intelligent as Sonnet 4, but much faster and at only one-third the cost of Sonnet 4.”

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