Claude Haiku vs Sonnet 5.5: 18x Cheaper and Just as Accurate in a Three-Task API Test
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Originally published at ranthis.com . The scripts and raw answers are in the public repo . We gave Claude Haiku 5.5 and Sonnet 5.5 the same three office tasks through the API and graded them with code. Both scored 15/15, but Haiku was faster and cost 18 times less. By the RanThis team , written wit…
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- 2026-10-24 01:18 · DEV Community — AI
Claude Haiku vs Sonnet 5.5: 18x Cheaper and Just as Accurate in a Three-Task API Test