# GLM 5.3 Flash vs Muse Spark

As of Oct 15, 2026, GLM 5.3 Flash leads Muse Spark in 2 of 6 shared categories: Science and Long context.

GLM 5.3 Flash: $0.2375 per 1M blended tokens.

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

GLM 5.3 Flash: open weights.

Muse Spark: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Muse Spark leads GLM 5.3 Flash in General LLM at #12 against #34.
- Which to pick, Reasoning: As of Oct 15, 2026, Muse Spark leads GLM 5.3 Flash in Reasoning at #17 against #27.
- Which to pick, Science: As of Oct 15, 2026, GLM 5.3 Flash leads Muse Spark in Science at #34 against #37.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Muse Spark leads GLM 5.3 Flash in Coding › Web dev at #12 against #24.
- Which to pick, Long context: As of Oct 15, 2026, GLM 5.3 Flash leads Muse Spark in Long context at #35 against #44.
- Which to pick, Factuality: As of Oct 15, 2026, Muse Spark leads GLM 5.3 Flash in Factuality at #27 against #34.

As of Oct 15, 2026, GLM 5.3 Flash is state of the art on best per dollar in Coding (since Oct 14, 2026; sources Terminal-Bench 4.0; 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).