# Claude Opus 4.5 vs Muse Spark 1.3

As of Oct 14, 2026, Claude Opus 4.5 leads Muse Spark 1.3 in 0 of 5 shared categories.

Claude Opus 4.5: $10 per 1M blended tokens.

Muse Spark 1.3: $2.0000000000000004 per 1M blended tokens.

Claude Opus 4.5: closed weights.

Muse Spark 1.3: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, Muse Spark 1.3 leads Claude Opus 4.5 in General LLM at #9 against #33.
- Which to pick, Reasoning: As of Oct 14, 2026, Muse Spark 1.3 leads Claude Opus 4.5 in Reasoning at #8 against #28.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, Muse Spark 1.3 leads Claude Opus 4.5 in Coding › Web dev at #10 against #53.
- Which to pick, Long context: As of Oct 14, 2026, Muse Spark 1.3 leads Claude Opus 4.5 in Long context at #15 against #19.
- Which to pick, Factuality: As of Oct 14, 2026, Muse Spark 1.3 leads Claude Opus 4.5 in Factuality at #11 against #36.

As of Oct 14, 2026, Claude Opus 4.5 is a former state-of-the-art holder in Reasoning (since Dec 1, 2025; sources LMArena Text (style-controlled, hard prompts); methodology v1.0).

As of Oct 14, 2026, Muse Spark 1.3 is state of the art on best per dollar in Coding › Web dev (since Oct 14, 2026; sources LMArena WebDev; methodology v1.0).