Claude Sonnet 5.5 vs Muse Spark 1.2
As of Oct 15, 2026, Claude Sonnet 5.5 leads Muse Spark 1.2 in 3 of 6 shared categories: Coding › Web dev, Long context, and Vision.
Claude Sonnet 5.5
Yes. SOTA in Coding (tied), Coding › Agentic (tied), and Vision (tied).
Muse Spark 1.2
It used to be. Was SOTA in General LLM.
| Category | Claude Sonnet 5.5 | Muse Spark 1.2 |
|---|---|---|
| General LLM | #29 · #29 in General LLM Margin 15.425531914893611 LMArena leaderboard dataset · Oct 13, 2026 | #8 · Was SOTA · General LLM Margin 4.255319148936167 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #18 · #18 in Reasoning Margin 10.106382978723403 LMArena leaderboard dataset · Oct 13, 2026 | #11 · #11 in Reasoning Margin 6.38297872340425 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #4 · #4 in Math Margin 6.666666666666671 Epoch AI benchmarking hub · Sep 28, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #3 · #3 in Science Margin — Epoch AI benchmarking hub · Sep 28, 2026 | — |
| Coding | #1 · Co-SOTA · Coding Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #1 · Co-SOTA · Coding › Agentic Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #3 · Near-SOTA · Coding › Web dev Margin 1.5999999999999943 LMArena leaderboard dataset · Oct 13, 2026 | #42 · #42 in Coding › Web dev Margin 32.8 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #11 · #11 in Long context Margin 5.851063829787236 LMArena leaderboard dataset · Oct 13, 2026 | #17 · Was SOTA · Long context Margin 9.042553191489361 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 28, 2026 | #27 · #27 in Vision Margin 73.6842105263158 Epoch AI benchmarking hub · Aug 5, 2026 |
| Factuality | #17 · #17 in Factuality Margin 10.465116279069761 LMArena leaderboard dataset · Oct 13, 2026 | #9 · Was SOTA · Factuality Margin 5.813953488372093 LMArena leaderboard dataset · Oct 13, 2026 |
Claude Sonnet 5.5: $4.000000000000001 per 1M blended tokens.
Muse Spark 1.2: $2.0000000000000004 per 1M blended tokens.
Claude Sonnet 5.5: closed weights.
Muse Spark 1.2: closed weights.
General LLM: As of Oct 15, 2026, Muse Spark 1.2 leads Claude Sonnet 5.5 in General LLM at #8 against #29.
Reasoning: As of Oct 15, 2026, Muse Spark 1.2 leads Claude Sonnet 5.5 in Reasoning at #11 against #18.
Coding › Web dev: As of Oct 15, 2026, Claude Sonnet 5.5 leads Muse Spark 1.2 in Coding › Web dev at #3 against #42.
Long context: As of Oct 15, 2026, Claude Sonnet 5.5 leads Muse Spark 1.2 in Long context at #11 against #17.
Vision: As of Oct 15, 2026, Claude Sonnet 5.5 leads Muse Spark 1.2 in Vision at #1 against #27.
Factuality: As of Oct 15, 2026, Muse Spark 1.2 leads Claude Sonnet 5.5 in Factuality at #9 against #17.
Claude Sonnet 5.5 · Muse Spark 1.2
Claude Sonnet 5.5 or Muse Spark 1.2?
As of Oct 15, 2026, Claude Sonnet 5.5 leads Muse Spark 1.2 in 3 of 6 shared categories: Coding › Web dev, Long context, and Vision.
Claude Sonnet 5.5 or Muse Spark 1.2 for General LLM?
As of Oct 15, 2026, Muse Spark 1.2 leads Claude Sonnet 5.5 in General LLM at #8 against #29.
Claude Sonnet 5.5 or Muse Spark 1.2 for Reasoning?
As of Oct 15, 2026, Muse Spark 1.2 leads Claude Sonnet 5.5 in Reasoning at #11 against #18.
Claude Sonnet 5.5 or Muse Spark 1.2 for Coding › Web dev?
As of Oct 15, 2026, Claude Sonnet 5.5 leads Muse Spark 1.2 in Coding › Web dev at #3 against #42.