Haiku 5.5 benchmarks 2-3x faster than GPT-6 Luna and performs better

PawelHuryn · x · 2026-10-08

Pawel Huryn shares a direct comparison between Haiku 5.5 and GPT-6 Luna (adding the max effort tier he initially missed): Haiku 5.5 is on average 2-3x faster while also performing better.

He links his source data, caveats, and full charts covering more models and effort levels.

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