# GPT-5.4 vs Muse Spark 1.3

As of Oct 15, 2026, GPT-5.4 leads Muse Spark 1.3 in 1 of 5 shared categories: Factuality.

GPT-5.4: $5.625 per 1M blended tokens.

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

GPT-5.4: closed weights.

Muse Spark 1.3: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Muse Spark 1.3 leads GPT-5.4 in General LLM at #9 against #30.
- Which to pick, Reasoning: As of Oct 15, 2026, Muse Spark 1.3 leads GPT-5.4 in Reasoning at #8 against #32.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Muse Spark 1.3 leads GPT-5.4 in Coding › Web dev at #11 against #60.
- Which to pick, Long context: As of Oct 15, 2026, Muse Spark 1.3 leads GPT-5.4 in Long context at #15 against #40.
- Which to pick, Factuality: As of Oct 15, 2026, GPT-5.4 leads Muse Spark 1.3 in Factuality at #6 against #12.

As of Oct 15, 2026, GPT-5.4 is a former state-of-the-art holder in General LLM (since Apr 10, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).

As of Oct 15, 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).