# GPT-5.4 Pro vs Muse Spark

As of Oct 15, 2026, GPT-5.4 Pro leads Muse Spark in 2 of 2 shared categories: Math and Science.

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

Muse Spark: price per 1M tokens is unset in the catalog.

GPT-5.4 Pro: closed weights.

Muse Spark: closed weights.

- Which to pick, Math: As of Oct 15, 2026, GPT-5.4 Pro leads Muse Spark in Math at #6 against #7.
- Which to pick, Science: As of Oct 15, 2026, GPT-5.4 Pro leads Muse Spark in Science at #6 against #37.

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, Muse Spark is a former state-of-the-art holder in General LLM (since May 18, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).