Claude Fable 5.1 vs Muse Spark
As of Oct 15, 2026, Claude Fable 5.1 leads Muse Spark in 6 of 6 shared categories: General LLM, Reasoning, Math, Coding › Web dev, Long context, and Factuality.
Claude Fable 5.1
Yes. SOTA in co-SOTA in Factuality.
Muse Spark
It used to be. Was SOTA in General LLM.
| Category | Claude Fable 5.1 | Muse Spark |
|---|---|---|
| General LLM | #6 · Was SOTA · General LLM Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #12 · Was SOTA · General LLM Margin 8.163265306122454 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #5 · Was SOTA · Reasoning Margin 4.109589041095887 LMArena leaderboard dataset · Oct 13, 2026 | #17 · Was SOTA · Reasoning Margin 12.328767123287676 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #2 · Near-SOTA · Math Margin 2.2222222222222285 Epoch AI benchmarking hub · Sep 1, 2026 | #7 · Was SOTA · Math Margin 13.333333333333329 Epoch AI benchmarking hub · Apr 8, 2026 |
| Science | — | #37 · #37 in Science Margin — Epoch AI benchmarking hub · Apr 8, 2026 |
| Coding | #3 · Near-SOTA · Coding Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #3 · Near-SOTA · Coding › Agentic Margin 18.181818181818187 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #5 · Near-SOTA · Coding › Web dev Margin 3.738317757009341 LMArena leaderboard dataset · Oct 13, 2026 | #8 · #8 in Coding › Web dev Margin — LMArena leaderboard dataset · Jun 5, 2026 |
| Long context | #6 · Was SOTA · Long context Margin 4.08163265306122 LMArena leaderboard dataset · Oct 13, 2026 | #38 · #38 in Long context Margin 25.850340136054427 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #6 · #6 in Vision Margin 18.421052631578945 Epoch AI benchmarking hub · Sep 1, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #23 · #23 in Factuality Margin 17.910447761194035 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #3 · #3 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 1, 2026 | — |
Claude Fable 5.1: $20 per 1M blended tokens.
Muse Spark: price per 1M tokens is unset in the catalog.
Claude Fable 5.1: closed weights.
Muse Spark: closed weights.
General LLM: As of Oct 15, 2026, Claude Fable 5.1 leads Muse Spark in General LLM at #6 against #12.
Reasoning: As of Oct 15, 2026, Claude Fable 5.1 leads Muse Spark in Reasoning at #5 against #17.
Math: As of Oct 15, 2026, Claude Fable 5.1 leads Muse Spark in Math at #2 against #7.
Coding › Web dev: As of Oct 15, 2026, Claude Fable 5.1 leads Muse Spark in Coding › Web dev at #5 against #8.
Long context: As of Oct 15, 2026, Claude Fable 5.1 leads Muse Spark in Long context at #6 against #38.
Factuality: As of Oct 15, 2026, Claude Fable 5.1 leads Muse Spark in Factuality at #1 against #23.
Claude Fable 5.1 or Muse Spark?
As of Oct 15, 2026, Claude Fable 5.1 leads Muse Spark in 6 of 6 shared categories: General LLM, Reasoning, Math, Coding › Web dev, Long context, and Factuality.
Claude Fable 5.1 or Muse Spark for General LLM?
As of Oct 15, 2026, Claude Fable 5.1 leads Muse Spark in General LLM at #6 against #12.
Claude Fable 5.1 or Muse Spark for Reasoning?
As of Oct 15, 2026, Claude Fable 5.1 leads Muse Spark in Reasoning at #5 against #17.
Claude Fable 5.1 or Muse Spark for Math?
As of Oct 15, 2026, Claude Fable 5.1 leads Muse Spark in Math at #2 against #7.