# Muse Spark 1.2 vs Step 5 Preview

As of Oct 15, 2026, Muse Spark 1.2 leads Step 5 Preview in 4 of 5 shared categories: General LLM, Reasoning, Long context, and Factuality.

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

Step 5 Preview: $1.4249999999999998 per 1M blended tokens.

Muse Spark 1.2: closed weights.

Step 5 Preview: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Muse Spark 1.2 leads Step 5 Preview in General LLM at #8 against #77.
- Which to pick, Reasoning: As of Oct 15, 2026, Muse Spark 1.2 leads Step 5 Preview in Reasoning at #11 against #63.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Step 5 Preview leads Muse Spark 1.2 in Coding › Web dev at #33 against #42.
- Which to pick, Long context: As of Oct 15, 2026, Muse Spark 1.2 leads Step 5 Preview in Long context at #17 against #68.
- Which to pick, Factuality: As of Oct 15, 2026, Muse Spark 1.2 leads Step 5 Preview in Factuality at #9 against #69.

As of Oct 15, 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 15, 2026, Step 5 Preview is ranked #33 in Coding › Web dev (since Oct 15, 2026; sources LMArena WebDev; methodology v1.0).