Claude Sonnet 5.5 vs Muse Spark
As of Oct 15, 2026, Claude Sonnet 5.5 leads Muse Spark in 5 of 7 shared categories: Math, Science, Coding › Web dev, Long context, and Factuality.
Claude Sonnet 5.5
Yes. SOTA in Coding (tied), Coding › Agentic (tied), and Vision (tied).
Muse Spark
It used to be. Was SOTA in General LLM.
| Category | Claude Sonnet 5.5 | Muse Spark |
|---|---|---|
| General LLM | #29 · #29 in General LLM Margin 15.425531914893611 LMArena leaderboard dataset · Oct 13, 2026 | #12 · Was SOTA · General LLM Margin 6.38297872340425 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #18 · #18 in Reasoning Margin 10.106382978723403 LMArena leaderboard dataset · Oct 13, 2026 | #17 · Was SOTA · Reasoning Margin 9.574468085106389 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #4 · #4 in Math Margin 6.666666666666671 Epoch AI benchmarking hub · Sep 28, 2026 | #7 · Was SOTA · Math Margin 13.333333333333329 Epoch AI benchmarking hub · Apr 8, 2026 |
| Science | #3 · #3 in Science Margin — Epoch AI benchmarking hub · Sep 28, 2026 | #37 · #37 in Science Margin — Epoch AI benchmarking hub · Apr 8, 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 | #12 · #12 in Coding › Web dev Margin — LMArena leaderboard dataset · Jun 5, 2026 |
| Long context | #11 · #11 in Long context Margin 5.851063829787236 LMArena leaderboard dataset · Oct 13, 2026 | #44 · #44 in Long context Margin 23.40425531914893 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 28, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #17 · #17 in Factuality Margin 10.465116279069761 LMArena leaderboard dataset · Oct 13, 2026 | #27 · #27 in Factuality Margin 16.279069767441854 LMArena leaderboard dataset · Oct 13, 2026 |
Claude Sonnet 5.5: $4.000000000000001 per 1M blended tokens.
Muse Spark: price per 1M tokens is unset in the catalog.
Claude Sonnet 5.5: closed weights.
Muse Spark: closed weights.
General LLM: As of Oct 15, 2026, Muse Spark leads Claude Sonnet 5.5 in General LLM at #12 against #29.
Reasoning: As of Oct 15, 2026, Muse Spark leads Claude Sonnet 5.5 in Reasoning at #17 against #18.
Math: As of Oct 15, 2026, Claude Sonnet 5.5 leads Muse Spark in Math at #4 against #7.
Science: As of Oct 15, 2026, Claude Sonnet 5.5 leads Muse Spark in Science at #3 against #37.
Coding › Web dev: As of Oct 15, 2026, Claude Sonnet 5.5 leads Muse Spark in Coding › Web dev at #3 against #12.
Long context: As of Oct 15, 2026, Claude Sonnet 5.5 leads Muse Spark in Long context at #11 against #44.
Factuality: As of Oct 15, 2026, Claude Sonnet 5.5 leads Muse Spark in Factuality at #17 against #27.
Claude Sonnet 5.5 · Muse Spark
Claude Sonnet 5.5 or Muse Spark?
As of Oct 15, 2026, Claude Sonnet 5.5 leads Muse Spark in 5 of 7 shared categories: Math, Science, Coding › Web dev, Long context, and Factuality.
Claude Sonnet 5.5 or Muse Spark for General LLM?
As of Oct 15, 2026, Muse Spark leads Claude Sonnet 5.5 in General LLM at #12 against #29.
Claude Sonnet 5.5 or Muse Spark for Reasoning?
As of Oct 15, 2026, Muse Spark leads Claude Sonnet 5.5 in Reasoning at #17 against #18.
Claude Sonnet 5.5 or Muse Spark for Math?
As of Oct 15, 2026, Claude Sonnet 5.5 leads Muse Spark in Math at #4 against #7.