# Claude Sonnet 4.5 20250929 vs GPT-5.4 Pro

As of Oct 14, 2026, Claude Sonnet 4.5 20250929 leads GPT-5.4 Pro in 0 of 2 shared categories.

Claude Sonnet 4.5 20250929: price per 1M tokens is unset in the catalog.

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

Claude Sonnet 4.5 20250929: closed weights.

GPT-5.4 Pro: closed weights.

- Which to pick, Science: As of Oct 14, 2026, GPT-5.4 Pro leads Claude Sonnet 4.5 20250929 in Science at #6 against #66.
- Which to pick, Abstraction (ARC): As of Oct 14, 2026, GPT-5.4 Pro leads Claude Sonnet 4.5 20250929 in Abstraction (ARC) at #8 against #36.

As of Oct 14, 2026, Claude Sonnet 4.5 20250929 is ranked #36 in Abstraction (ARC) (since Oct 14, 2026; sources ARC-AGI; 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).