# GPT-5.4 Pro vs Grok 4.5

As of Oct 15, 2026, GPT-5.4 Pro leads Grok 4.5 in 2 of 2 shared categories: Science and Abstraction (ARC).

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

Grok 4.5: $3 per 1M blended tokens.

GPT-5.4 Pro: closed weights.

Grok 4.5: closed weights.

- Which to pick, Science: As of Oct 15, 2026, GPT-5.4 Pro leads Grok 4.5 in Science at #6 against #14.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, GPT-5.4 Pro leads Grok 4.5 in Abstraction (ARC) at #8 against #21.

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).

As of Oct 15, 2026, Grok 4.5 is ranked #14 in Science (since Oct 15, 2026; sources GPQA Diamond; methodology v1.0).