Muse Spark 1.2 vs Muse Spark 1.3
As of Oct 15, 2026, Muse Spark 1.2 leads Muse Spark 1.3 in 2 of 6 shared categories: General LLM and Factuality.
Muse Spark 1.2
It used to be. Was SOTA in General LLM.
Muse Spark 1.3
Yes. Yes on Coding › Web dev (best per dollar); Vision (best per dollar). Not the overall leader.
| Category | Muse Spark 1.2 | Muse Spark 1.3 |
|---|---|---|
| General LLM | #8 · Was SOTA · General LLM Margin 5.442176870748298 LMArena leaderboard dataset · Oct 13, 2026 | #9 · #9 in General LLM Margin 6.122448979591837 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #11 · #11 in Reasoning Margin 8.219178082191775 LMArena leaderboard dataset · Oct 13, 2026 | #8 · #8 in Reasoning Margin 6.164383561643831 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 | #18 · #18 in Coding Margin 86.36363636363636 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #18 · #18 in Coding › Agentic Margin 86.36363636363636 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #40 · #40 in Coding › Web dev Margin 36.44859813084112 LMArena leaderboard dataset · Oct 13, 2026 | #10 · #10 in Coding › Web dev Margin 8.411214953271028 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #16 · Was SOTA · Long context Margin 10.884353741496597 LMArena leaderboard dataset · Oct 13, 2026 | #15 · #15 in Long context Margin 10.204081632653057 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #27 · #27 in Vision Margin 73.6842105263158 Epoch AI benchmarking hub · Aug 5, 2026 | #8 · #8 in Vision Margin 23.684210526315795 Epoch AI benchmarking hub · Sep 2, 2026 |
| Factuality | #9 · Was SOTA · Factuality Margin 7.462686567164198 LMArena leaderboard dataset · Oct 13, 2026 | #11 · #11 in Factuality Margin 8.955223880597018 LMArena leaderboard dataset · Oct 13, 2026 |
Muse Spark 1.2: $2.0000000000000004 per 1M blended tokens.
Muse Spark 1.3: $2.0000000000000004 per 1M blended tokens.
Muse Spark 1.2: closed weights.
Muse Spark 1.3: closed weights.
General LLM: As of Oct 15, 2026, Muse Spark 1.2 leads Muse Spark 1.3 in General LLM at #8 against #9.
Reasoning: As of Oct 15, 2026, Muse Spark 1.3 leads Muse Spark 1.2 in Reasoning at #8 against #11.
Coding › Web dev: As of Oct 15, 2026, Muse Spark 1.3 leads Muse Spark 1.2 in Coding › Web dev at #10 against #40.
Long context: As of Oct 15, 2026, Muse Spark 1.3 leads Muse Spark 1.2 in Long context at #15 against #16.
Vision: As of Oct 15, 2026, Muse Spark 1.3 leads Muse Spark 1.2 in Vision at #8 against #27.
Factuality: As of Oct 15, 2026, Muse Spark 1.2 leads Muse Spark 1.3 in Factuality at #9 against #11.
Muse Spark 1.2 · Muse Spark 1.3
Muse Spark 1.2 or Muse Spark 1.3?
As of Oct 15, 2026, Muse Spark 1.2 leads Muse Spark 1.3 in 2 of 6 shared categories: General LLM and Factuality.
Muse Spark 1.2 or Muse Spark 1.3 for General LLM?
As of Oct 15, 2026, Muse Spark 1.2 leads Muse Spark 1.3 in General LLM at #8 against #9.
Muse Spark 1.2 or Muse Spark 1.3 for Reasoning?
As of Oct 15, 2026, Muse Spark 1.3 leads Muse Spark 1.2 in Reasoning at #8 against #11.
Muse Spark 1.2 or Muse Spark 1.3 for Coding › Web dev?
As of Oct 15, 2026, Muse Spark 1.3 leads Muse Spark 1.2 in Coding › Web dev at #10 against #40.