# GPT-5.4 Pro vs O1 Preview

As of Oct 15, 2026, GPT-5.4 Pro leads O1 Preview in 2 of 2 shared categories: Science and Abstraction (ARC).

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

O1 Preview: price per 1M tokens is unset in the catalog.

GPT-5.4 Pro: closed weights.

O1 Preview: closed weights.

- Which to pick, Science: As of Oct 15, 2026, GPT-5.4 Pro leads O1 Preview in Science at #6 against #125.
- Which to pick, Abstraction (ARC): As of Oct 15, 2026, GPT-5.4 Pro leads O1 Preview in Abstraction (ARC) at #8 against #73.

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, O1 Preview is a former state-of-the-art holder in General LLM (since Sep 27, 2024; sources LMArena Text (style-controlled, overall); methodology v1.0).