Muse Spark 1.1 vs Step 5 Preview
As of Oct 14, 2026, Muse Spark 1.1 leads Step 5 Preview in 4 of 5 shared categories: General LLM, Reasoning, Long context, and Factuality.
Muse Spark 1.1
It used to be. Was SOTA in General LLM.
Step 5 Preview
#31 Best current rank: #31 in Coding › Web dev, as of Oct 14, 2026.
| Category | Muse Spark 1.1 | Step 5 Preview |
|---|---|---|
| General LLM | #10 · Was SOTA · General LLM Margin 6.802721088435376 LMArena leaderboard dataset · Oct 13, 2026 | #60 · #60 in General LLM Margin 40.816326530612244 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #13 · #13 in Reasoning Margin 9.589041095890408 LMArena leaderboard dataset · Oct 13, 2026 | #49 · #49 in Reasoning Margin 34.246575342465746 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #37 · #37 in Coding › Web dev Margin 33.64485981308411 LMArena leaderboard dataset · Oct 13, 2026 | #31 · #31 in Coding › Web dev Margin 28.037383177570092 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #33 · #33 in Long context Margin 22.448979591836732 LMArena leaderboard dataset · Oct 13, 2026 | #56 · #56 in Long context Margin 38.095238095238095 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #28 · #28 in Vision Margin 76.3157894736842 Epoch AI benchmarking hub · Jul 9, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #32 · Was SOTA · Factuality Margin 24.626865671641795 LMArena leaderboard dataset · Oct 13, 2026 | #57 · #57 in Factuality Margin 43.28358208955224 LMArena leaderboard dataset · Oct 13, 2026 |
Muse Spark 1.1: $2.0000000000000004 per 1M blended tokens.
Step 5 Preview: $1.4249999999999998 per 1M blended tokens.
Muse Spark 1.1: closed weights.
Step 5 Preview: closed weights.
General LLM: As of Oct 14, 2026, Muse Spark 1.1 leads Step 5 Preview in General LLM at #10 against #60.
Reasoning: As of Oct 14, 2026, Muse Spark 1.1 leads Step 5 Preview in Reasoning at #13 against #49.
Coding › Web dev: As of Oct 14, 2026, Step 5 Preview leads Muse Spark 1.1 in Coding › Web dev at #31 against #37.
Long context: As of Oct 14, 2026, Muse Spark 1.1 leads Step 5 Preview in Long context at #33 against #56.
Factuality: As of Oct 14, 2026, Muse Spark 1.1 leads Step 5 Preview in Factuality at #32 against #57.
Muse Spark 1.1 · Step 5 Preview
Muse Spark 1.1 or Step 5 Preview?
As of Oct 14, 2026, Muse Spark 1.1 leads Step 5 Preview in 4 of 5 shared categories: General LLM, Reasoning, Long context, and Factuality.
Muse Spark 1.1 or Step 5 Preview for General LLM?
As of Oct 14, 2026, Muse Spark 1.1 leads Step 5 Preview in General LLM at #10 against #60.
Muse Spark 1.1 or Step 5 Preview for Reasoning?
As of Oct 14, 2026, Muse Spark 1.1 leads Step 5 Preview in Reasoning at #13 against #49.
Muse Spark 1.1 or Step 5 Preview for Coding › Web dev?
As of Oct 14, 2026, Step 5 Preview leads Muse Spark 1.1 in Coding › Web dev at #31 against #37.