# Claude Opus 4.6 vs Muse Spark

As of Oct 15, 2026, Claude Opus 4.6 leads Muse Spark in 5 of 7 shared categories: General LLM, Reasoning, Science, Long context, and Factuality.

Claude Opus 4.6: $10 per 1M blended tokens.

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

Claude Opus 4.6: closed weights.

Muse Spark: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Claude Opus 4.6 leads Muse Spark in General LLM at #4 against #12.
- Which to pick, Reasoning: As of Oct 15, 2026, Claude Opus 4.6 leads Muse Spark in Reasoning at #2 against #17.
- Which to pick, Math: As of Oct 15, 2026, Muse Spark leads Claude Opus 4.6 in Math at #7 against #11.
- Which to pick, Science: As of Oct 15, 2026, Claude Opus 4.6 leads Muse Spark in Science at #32 against #37.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Muse Spark leads Claude Opus 4.6 in Coding › Web dev at #12 against #37.
- Which to pick, Long context: As of Oct 15, 2026, Claude Opus 4.6 leads Muse Spark in Long context at #2 against #44.
- Which to pick, Factuality: As of Oct 15, 2026, Claude Opus 4.6 leads Muse Spark in Factuality at #3 against #27.

As of Oct 15, 2026, Claude Opus 4.6 is near state of the art, rank #2 in Reasoning (since Oct 15, 2026; sources LMArena Text (style-controlled, hard prompts); 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).