# GPT-5.4 Pro vs GPT-5 Nano

As of Oct 15, 2026, GPT-5.4 Pro leads GPT-5 Nano in 2 of 2 shared categories: Science and Abstraction (ARC).

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

GPT-5 Nano: $0.1375 per 1M blended tokens.

GPT-5.4 Pro: closed weights.

GPT-5 Nano: closed weights.

- Which to pick, Science: As of Oct 15, 2026, GPT-5.4 Pro leads GPT-5 Nano in Science at #6 against #89.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, GPT-5.4 Pro leads GPT-5 Nano in Abstraction (ARC) at #8 against #72.

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, GPT-5 Nano is ranked #72 in Abstraction (ARC) (since Oct 15, 2026; sources ARC-AGI; methodology v1.0).