Claude Opus 5 vs Muse Spark
As of Oct 14, 2026, Claude Opus 5 leads Muse Spark in 6 of 6 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, and Factuality.
Claude Opus 5
Close. Near-SOTA in Factuality, rank #4.
Muse Spark
It used to be. Was SOTA in General LLM.
| Category | Claude Opus 5 | Muse Spark |
|---|---|---|
| General LLM | #11 · Was SOTA · General LLM Margin 7.482993197278915 LMArena leaderboard dataset · Oct 13, 2026 | #12 · Was SOTA · General LLM Margin 8.163265306122454 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #9 · Was SOTA · Reasoning Margin 6.849315068493155 LMArena leaderboard dataset · Oct 13, 2026 | #17 · Was SOTA · Reasoning Margin 12.328767123287676 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #7 · Was SOTA · Math Margin 13.333333333333329 Epoch AI benchmarking hub · Apr 8, 2026 |
| Science | #12 · #12 in Science Margin — Epoch AI benchmarking hub · Jul 24, 2026 | #37 · #37 in Science Margin — Epoch AI benchmarking hub · Apr 8, 2026 |
| Coding | #4 · #4 in Coding Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #4 · #4 in Coding › Agentic Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #6 · Was SOTA · Coding › Web dev Margin 4.672897196261687 LMArena leaderboard dataset · Oct 13, 2026 | #8 · #8 in Coding › Web dev Margin — LMArena leaderboard dataset · Jun 5, 2026 |
| Long context | #9 · Was SOTA · Long context Margin 6.122448979591837 LMArena leaderboard dataset · Oct 13, 2026 | #38 · #38 in Long context Margin 25.850340136054427 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #12 · #12 in Vision Margin 36.8421052631579 Epoch AI benchmarking hub · Jul 24, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #4 · Near-SOTA · Factuality Margin 3.731343283582092 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 · Jul 24, 2026 | — |
Claude Opus 5: $10 per 1M blended tokens.
Muse Spark: price per 1M tokens is unset in the catalog.
Claude Opus 5: closed weights.
Muse Spark: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 5 leads Muse Spark in General LLM at #11 against #12.
Reasoning: As of Oct 14, 2026, Claude Opus 5 leads Muse Spark in Reasoning at #9 against #17.
Science: As of Oct 14, 2026, Claude Opus 5 leads Muse Spark in Science at #12 against #37.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5 leads Muse Spark in Coding › Web dev at #6 against #8.
Long context: As of Oct 14, 2026, Claude Opus 5 leads Muse Spark in Long context at #9 against #38.
Factuality: As of Oct 14, 2026, Claude Opus 5 leads Muse Spark in Factuality at #4 against #23.
Claude Opus 5 or Muse Spark?
As of Oct 14, 2026, Claude Opus 5 leads Muse Spark in 6 of 6 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, and Factuality.
Claude Opus 5 or Muse Spark for General LLM?
As of Oct 14, 2026, Claude Opus 5 leads Muse Spark in General LLM at #11 against #12.
Claude Opus 5 or Muse Spark for Reasoning?
As of Oct 14, 2026, Claude Opus 5 leads Muse Spark in Reasoning at #9 against #17.
Claude Opus 5 or Muse Spark for Science?
As of Oct 14, 2026, Claude Opus 5 leads Muse Spark in Science at #12 against #37.