# GPT-6.1 Sol vs Muse Spark

As of Oct 15, 2026, GPT-6.1 Sol leads Muse Spark in 4 of 6 shared categories: Reasoning, Science, Coding › Web dev, and Long context.

GPT-6.1 Sol: $4.000000000000001 per 1M blended tokens.

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

GPT-6.1 Sol: closed weights.

Muse Spark: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Muse Spark leads GPT-6.1 Sol in General LLM at #12 against #18.
- Which to pick, Reasoning: As of Oct 15, 2026, GPT-6.1 Sol leads Muse Spark in Reasoning at #15 against #17.
- Which to pick, Science: As of Oct 15, 2026, GPT-6.1 Sol leads Muse Spark in Science at #4 against #37.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, GPT-6.1 Sol leads Muse Spark in Coding › Web dev at #4 against #12.
- Which to pick, Long context: As of Oct 15, 2026, GPT-6.1 Sol leads Muse Spark in Long context at #18 against #44.
- Which to pick, Factuality: As of Oct 15, 2026, Muse Spark leads GPT-6.1 Sol in Factuality at #27 against #33.

As of Oct 15, 2026, GPT-6.1 Sol is tied for state of the art in Vision (since Sep 30, 2026; sources GDP.pdf; 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).