Claude Haiku 5.5 Cuts Costs 75%, Scores 1620 vs 735 on GDPval, Adds Adjustable Effort
petrusenko_max · x · 2026-10-08
Anthropic's Claude Haiku 5.5 runs 75% cheaper than Haiku 4.5 while scoring 1620 vs 735 on GDPval-AA v2.1 and 39.2% vs 0.0% on Terminal-Bench 4.0. It's also the first Haiku-class model with adjustable effort settings.
Related event: Anthropic Launches Claude Haiku 5.5 with 75% Lower Costs(34 posts)→
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