Claude Haiku 5.5 vs GPT-5.4 Pro
As of Oct 14, 2026, Claude Haiku 5.5 leads GPT-5.4 Pro in 0 of 2 shared categories.
Claude Haiku 5.5
Yes. Yes on Math (best per dollar). Not the overall leader.
GPT-5.4 Pro
It used to be. Was SOTA in Math.
| Category | Claude Haiku 5.5 | GPT-5.4 Pro |
|---|---|---|
| Reasoning | — | #— · Not enough data Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
| Math | #13 · #13 in Math Margin 26.66666666666667 Epoch AI benchmarking hub · Oct 7, 2026 | #6 · Was SOTA · Math Margin 11.111111111111114 Epoch AI benchmarking hub · Mar 5, 2026 |
| Science | #38 · #38 in Science Margin — Epoch AI benchmarking hub · Oct 7, 2026 | #6 · #6 in Science Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
| Coding | #— · Not enough data Margin — Scale Labs leaderboards · Oct 14, 2026 | — |
| Coding › Web dev | #26 · #26 in Coding › Web dev Margin 23.364485981308405 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Factuality | — | #— · Not enough data Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
| Abstraction (ARC) | — | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Mar 5, 2026 |
Claude Haiku 5.5: $0.19999999999999998 per 1M blended tokens.
GPT-5.4 Pro: $67.5 per 1M blended tokens.
Claude Haiku 5.5: closed weights.
GPT-5.4 Pro: closed weights.
Math: As of Oct 14, 2026, GPT-5.4 Pro leads Claude Haiku 5.5 in Math at #6 against #13.
Science: As of Oct 14, 2026, GPT-5.4 Pro leads Claude Haiku 5.5 in Science at #6 against #38.
Claude Haiku 5.5 · GPT-5.4 Pro
Claude Haiku 5.5 or GPT-5.4 Pro?
As of Oct 14, 2026, Claude Haiku 5.5 leads GPT-5.4 Pro in 0 of 2 shared categories.
Claude Haiku 5.5 or GPT-5.4 Pro for Math?
As of Oct 14, 2026, GPT-5.4 Pro leads Claude Haiku 5.5 in Math at #6 against #13.
Claude Haiku 5.5 or GPT-5.4 Pro for Science?
As of Oct 14, 2026, GPT-5.4 Pro leads Claude Haiku 5.5 in Science at #6 against #38.