# GPT-5.6 Luna vs Muse Spark

As of Oct 14, 2026, GPT-5.6 Luna leads Muse Spark in 1 of 6 shared categories: Science.

GPT-5.6 Luna: $0.44999999999999996 per 1M blended tokens.

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

GPT-5.6 Luna: closed weights.

Muse Spark: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, Muse Spark leads GPT-5.6 Luna in General LLM at #12 against #53.
- Which to pick, Reasoning: As of Oct 14, 2026, Muse Spark leads GPT-5.6 Luna in Reasoning at #17 against #55.
- Which to pick, Science: As of Oct 14, 2026, GPT-5.6 Luna leads Muse Spark in Science at #25 against #37.
- Which to pick, Coding › Web dev: As of Oct 14, 2026, Muse Spark leads GPT-5.6 Luna in Coding › Web dev at #8 against #43.
- Which to pick, Long context: As of Oct 14, 2026, Muse Spark leads GPT-5.6 Luna in Long context at #38 against #65.
- Which to pick, Factuality: As of Oct 14, 2026, Muse Spark leads GPT-5.6 Luna in Factuality at #23 against #35.

As of Oct 14, 2026, GPT-5.6 Luna is ranked #16 in Coding (since Oct 14, 2026; sources Terminal-Bench 4.0; 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).