Claude Sonnet 5.5 vs Muse Spark 1.3
As of Oct 14, 2026, Claude Sonnet 5.5 leads Muse Spark 1.3 in 5 of 8 shared categories: Coding, Coding › Agentic, Coding › Web dev, Long context, and Vision.
Claude Sonnet 5.5
Yes. SOTA in co-SOTA in Coding, co-SOTA in Coding › Agentic and co-SOTA in Vision.
Muse Spark 1.3
Yes. Yes on Coding › Web dev (best per dollar); Vision (best per dollar). Not the overall leader.
| Category | Claude Sonnet 5.5 | Muse Spark 1.3 |
|---|---|---|
| General LLM | #27 · #27 in General LLM Margin 18.367346938775512 LMArena leaderboard dataset · Oct 13, 2026 | #9 · #9 in General LLM Margin 6.122448979591837 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #18 · #18 in Reasoning Margin 13.013698630136986 LMArena leaderboard dataset · Oct 13, 2026 | #8 · #8 in Reasoning Margin 6.164383561643831 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 | #18 · #18 in Coding Margin 86.36363636363636 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #1 · Co-SOTA · Coding › Agentic Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | #18 · #18 in Coding › Agentic Margin 86.36363636363636 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #3 · Near-SOTA · Coding › Web dev Margin 1.8691588785046775 LMArena leaderboard dataset · Oct 13, 2026 | #10 · #10 in Coding › Web dev Margin 8.411214953271028 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #11 · #11 in Long context Margin 7.482993197278915 LMArena leaderboard dataset · Oct 13, 2026 | #15 · #15 in Long context Margin 10.204081632653057 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 28, 2026 | #8 · #8 in Vision Margin 23.684210526315795 Epoch AI benchmarking hub · Sep 2, 2026 |
| Factuality | #16 · #16 in Factuality Margin 12.68656716417911 LMArena leaderboard dataset · Oct 13, 2026 | #11 · #11 in Factuality Margin 8.955223880597018 LMArena leaderboard dataset · Oct 13, 2026 |
Claude Sonnet 5.5: $4.000000000000001 per 1M blended tokens.
Muse Spark 1.3: $2.0000000000000004 per 1M blended tokens.
Claude Sonnet 5.5: closed weights.
Muse Spark 1.3: closed weights.
General LLM: As of Oct 14, 2026, Muse Spark 1.3 leads Claude Sonnet 5.5 in General LLM at #9 against #27.
Reasoning: As of Oct 14, 2026, Muse Spark 1.3 leads Claude Sonnet 5.5 in Reasoning at #8 against #18.
Coding: As of Oct 14, 2026, Claude Sonnet 5.5 leads Muse Spark 1.3 in Coding at #1 against #18.
Coding › Agentic: As of Oct 14, 2026, Claude Sonnet 5.5 leads Muse Spark 1.3 in Coding › Agentic at #1 against #18.
Coding › Web dev: As of Oct 14, 2026, Claude Sonnet 5.5 leads Muse Spark 1.3 in Coding › Web dev at #3 against #10.
Long context: As of Oct 14, 2026, Claude Sonnet 5.5 leads Muse Spark 1.3 in Long context at #11 against #15.
Vision: As of Oct 14, 2026, Claude Sonnet 5.5 leads Muse Spark 1.3 in Vision at #1 against #8.
Factuality: As of Oct 14, 2026, Muse Spark 1.3 leads Claude Sonnet 5.5 in Factuality at #11 against #16.
Claude Sonnet 5.5 · Muse Spark 1.3
Claude Sonnet 5.5 or Muse Spark 1.3?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Muse Spark 1.3 in 5 of 8 shared categories: Coding, Coding › Agentic, Coding › Web dev, Long context, and Vision.
Claude Sonnet 5.5 or Muse Spark 1.3 for General LLM?
As of Oct 14, 2026, Muse Spark 1.3 leads Claude Sonnet 5.5 in General LLM at #9 against #27.
Claude Sonnet 5.5 or Muse Spark 1.3 for Reasoning?
As of Oct 14, 2026, Muse Spark 1.3 leads Claude Sonnet 5.5 in Reasoning at #8 against #18.
Claude Sonnet 5.5 or Muse Spark 1.3 for Coding?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Muse Spark 1.3 in Coding at #1 against #18.