Claude Sonnet 4.5 vs Muse Spark
As of Oct 14, 2026, Claude Sonnet 4.5 leads Muse Spark in 1 of 7 shared categories: Long context.
Claude Sonnet 4.5
It used to be. Was SOTA in General LLM.
Muse Spark
It used to be. Was SOTA in General LLM.
| Category | Claude Sonnet 4.5 | Muse Spark |
|---|---|---|
| General LLM | #49 · Was SOTA · General LLM Margin 33.33333333333333 LMArena leaderboard dataset · Oct 13, 2026 | #12 · Was SOTA · General LLM Margin 8.163265306122454 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #40 · Was SOTA · Reasoning Margin 28.082191780821915 LMArena leaderboard dataset · Oct 13, 2026 | #17 · Was SOTA · Reasoning Margin 12.328767123287676 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #25 · #25 in Math Margin 53.333333333333336 Epoch AI benchmarking hub · Sep 29, 2025 | #7 · Was SOTA · Math Margin 13.333333333333329 Epoch AI benchmarking hub · Apr 8, 2026 |
| Science | #82 · #82 in Science Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #37 · #37 in Science Margin — Epoch AI benchmarking hub · Apr 8, 2026 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Sep 29, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #78 · Was SOTA · Coding › Web dev Margin 71.96261682242991 LMArena leaderboard dataset · Oct 13, 2026 | #8 · #8 in Coding › Web dev Margin — LMArena leaderboard dataset · Jun 5, 2026 |
| Long context | #29 · Was SOTA · Long context Margin 19.72789115646259 LMArena leaderboard dataset · Oct 13, 2026 | #38 · #38 in Long context Margin 25.850340136054427 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | — | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #50 · #50 in Factuality Margin 38.059701492537314 LMArena leaderboard dataset · Oct 13, 2026 | #23 · #23 in Factuality Margin 17.910447761194035 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #66 · #66 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 29, 2025 | — |
Claude Sonnet 4.5: $6 per 1M blended tokens.
Muse Spark: price per 1M tokens is unset in the catalog.
Claude Sonnet 4.5: closed weights.
Muse Spark: closed weights.
General LLM: As of Oct 14, 2026, Muse Spark leads Claude Sonnet 4.5 in General LLM at #12 against #49.
Reasoning: As of Oct 14, 2026, Muse Spark leads Claude Sonnet 4.5 in Reasoning at #17 against #40.
Math: As of Oct 14, 2026, Muse Spark leads Claude Sonnet 4.5 in Math at #7 against #25.
Science: As of Oct 14, 2026, Muse Spark leads Claude Sonnet 4.5 in Science at #37 against #82.
Coding › Web dev: As of Oct 14, 2026, Muse Spark leads Claude Sonnet 4.5 in Coding › Web dev at #8 against #78.
Long context: As of Oct 14, 2026, Claude Sonnet 4.5 leads Muse Spark in Long context at #29 against #38.
Factuality: As of Oct 14, 2026, Muse Spark leads Claude Sonnet 4.5 in Factuality at #23 against #50.
Claude Sonnet 4.5 · Muse Spark
Claude Sonnet 4.5 or Muse Spark?
As of Oct 14, 2026, Claude Sonnet 4.5 leads Muse Spark in 1 of 7 shared categories: Long context.
Claude Sonnet 4.5 or Muse Spark for General LLM?
As of Oct 14, 2026, Muse Spark leads Claude Sonnet 4.5 in General LLM at #12 against #49.
Claude Sonnet 4.5 or Muse Spark for Reasoning?
As of Oct 14, 2026, Muse Spark leads Claude Sonnet 4.5 in Reasoning at #17 against #40.
Claude Sonnet 4.5 or Muse Spark for Math?
As of Oct 14, 2026, Muse Spark leads Claude Sonnet 4.5 in Math at #7 against #25.