# Muse Spark 1.2 vs O1 Preview

As of Oct 14, 2026, Muse Spark 1.2 leads O1 Preview in 3 of 3 shared categories: General LLM, Reasoning, and Long context.

Muse Spark 1.2: $2.0000000000000004 per 1M blended tokens.

O1 Preview: price per 1M tokens is unset in the catalog.

Muse Spark 1.2: closed weights.

O1 Preview: closed weights.

- Which to pick, General LLM: As of Oct 14, 2026, Muse Spark 1.2 leads O1 Preview in General LLM at #8 against #129.
- Which to pick, Reasoning: As of Oct 14, 2026, Muse Spark 1.2 leads O1 Preview in Reasoning at #11 against #137.
- Which to pick, Long context: As of Oct 14, 2026, Muse Spark 1.2 leads O1 Preview in Long context at #16 against #135.

As of Oct 14, 2026, Muse Spark 1.2 is a former state-of-the-art holder in General LLM (since Sep 11, 2026; sources LMArena Text (style-controlled, overall); methodology v1.0).

As of Oct 14, 2026, O1 Preview is a former state-of-the-art holder in General LLM (since Sep 27, 2024; sources LMArena Text (style-controlled, overall); methodology v1.0).