# Grok 4.5 vs Muse Spark

As of Oct 14, 2026, Grok 4.5 leads Muse Spark in 2 of 6 shared categories: Science and Long context.

Grok 4.5: $3 per 1M blended tokens.

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

Grok 4.5: closed weights.

Muse Spark: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, Muse Spark leads Grok 4.5 in General LLM at #12 against #36.
- Which to pick, Reasoning: As of Oct 14, 2026, Muse Spark leads Grok 4.5 in Reasoning at #17 against #37.
- Which to pick, Science: As of Oct 14, 2026, Grok 4.5 leads Muse Spark in Science at #14 against #37.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, Muse Spark leads Grok 4.5 in Coding › Web dev at #8 against #34.
- Which to pick, Long context: As of Oct 14, 2026, Grok 4.5 leads Muse Spark in Long context at #35 against #38.
- Which to pick, Factuality: As of Oct 14, 2026, Muse Spark leads Grok 4.5 in Factuality at #23 against #26.

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

As of Oct 14, 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).