# Muse Spark 1.3 vs Step 5 Preview

As of Oct 15, 2026, Muse Spark 1.3 leads Step 5 Preview in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.

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

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

Muse Spark 1.3: closed weights.

Step 5 Preview: closed weights.

- Which to pick, General LLM: As of Oct 15, 2026, Muse Spark 1.3 leads Step 5 Preview in General LLM at #9 against #77.
- Which to pick, Reasoning: As of Oct 15, 2026, Muse Spark 1.3 leads Step 5 Preview in Reasoning at #8 against #63.
- Which to pick, Coding › Web dev: As of Oct 15, 2026, Muse Spark 1.3 leads Step 5 Preview in Coding › Web dev at #11 against #33.
- Which to pick, Long context: As of Oct 15, 2026, Muse Spark 1.3 leads Step 5 Preview in Long context at #15 against #68.
- Which to pick, Factuality: As of Oct 15, 2026, Muse Spark 1.3 leads Step 5 Preview in Factuality at #12 against #69.

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).

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).