# 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: $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.

- Which to pick, Math: As of Oct 14, 2026, GPT-5.4 Pro leads Claude Haiku 5.5 in Math at #6 against #13.
- Which to pick, Science: As of Oct 14, 2026, GPT-5.4 Pro leads Claude Haiku 5.5 in Science at #6 against #38.

As of Oct 14, 2026, Claude Haiku 5.5 is state of the art on best per dollar in Math (since Oct 14, 2026; sources Humanity's Last Exam; methodology v1.0).

As of Oct 14, 2026, GPT-5.4 Pro is a former state-of-the-art holder in Math (since Apr 16, 2026; sources Humanity's Last Exam; methodology v1.0).