# Claude Opus 5 vs GPT-5.4 Pro

As of Oct 15, 2026, Claude Opus 5 leads GPT-5.4 Pro in 1 of 2 shared categories: Abstraction (ARC).

Claude Opus 5: $10 per 1M blended tokens.

GPT-5.4 Pro: $67.5 per 1M blended tokens.

Claude Opus 5: closed weights.

GPT-5.4 Pro: closed weights.

- Which to pick, Science: As of Oct 15, 2026, GPT-5.4 Pro leads Claude Opus 5 in Science at #6 against #12.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, Claude Opus 5 leads GPT-5.4 Pro in Abstraction (ARC) at #3 against #8.

As of Oct 15, 2026, Claude Opus 5 is near state of the art, rank #4 in Factuality (since Oct 15, 2026; sources LMArena Text factuality; methodology v1.0).

As of Oct 15, 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).