# GPT-5.1 vs Muse Spark 1.3

As of Oct 15, 2026, GPT-5.1 leads Muse Spark 1.3 in 0 of 5 shared categories.

GPT-5.1: $3.4375000000000004 per 1M blended tokens.

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

GPT-5.1: closed weights.

Muse Spark 1.3: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Muse Spark 1.3 leads GPT-5.1 in General LLM at #9 against #60.
- Which to pick, Reasoning: As of Oct 15, 2026, Muse Spark 1.3 leads GPT-5.1 in Reasoning at #8 against #62.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Muse Spark 1.3 leads GPT-5.1 in Coding › Web dev at #11 against #82.
- Which to pick, Long context: As of Oct 15, 2026, Muse Spark 1.3 leads GPT-5.1 in Long context at #15 against #66.
- Which to pick, Factuality: As of Oct 15, 2026, Muse Spark 1.3 leads GPT-5.1 in Factuality at #12 against #42.

As of Oct 15, 2026, GPT-5.1 is ranked #18 in Math (since Oct 15, 2026; sources Humanity's Last Exam; 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).