# Claude Opus 5.5 vs Muse Glimmer

As of Oct 14, 2026, Claude Opus 5.5 leads Muse Glimmer in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.

Claude Opus 5.5: $8.000000000000002 per 1M blended tokens.

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

Claude Opus 5.5: closed weights.

Muse Glimmer: open weights.

- Which to pick, General LLM: As of Oct 14, 2026, Claude Opus 5.5 leads Muse Glimmer in General LLM at #2 against #86.
- Which to pick, Reasoning: As of Oct 14, 2026, Claude Opus 5.5 leads Muse Glimmer in Reasoning at #1 against #82.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, Claude Opus 5.5 leads Muse Glimmer in Coding › Web dev at #1 against #86.
- Which to pick, Long context: As of Oct 14, 2026, Claude Opus 5.5 leads Muse Glimmer in Long context at #1 against #97.
- Which to pick, Factuality: As of Oct 14, 2026, Claude Opus 5.5 leads Muse Glimmer in Factuality at #1 against #107.

As of Oct 14, 2026, Claude Opus 5.5 is tied for state of the art in Reasoning (since Oct 2, 2026; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).

As of Oct 14, 2026, Muse Glimmer is ranked #82 in Reasoning (since Oct 14, 2026; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).