Claude Opus 5.5 vs Muse Spark 1.1
As of Oct 14, 2026, Claude Opus 5.5 leads Muse Spark 1.1 in 6 of 6 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Vision, and Factuality.
Claude Opus 5.5
Yes. SOTA in co-SOTA in Reasoning, co-SOTA in Coding, co-SOTA in Coding › Agentic, Coding › Web dev, co-SOTA in Long context and co-SOTA in Factuality.
Muse Spark 1.1
It used to be. Was SOTA in General LLM.
| Category | Claude Opus 5.5 | Muse Spark 1.1 |
|---|---|---|
| General LLM | #2 · Near-SOTA · General LLM Margin 1.3605442176870781 LMArena leaderboard dataset · Oct 13, 2026 | #10 · Was SOTA · General LLM Margin 6.802721088435376 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #1 · Co-SOTA · Reasoning Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #13 · #13 in Reasoning Margin 9.589041095890408 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #31 · #31 in Science Margin — Epoch AI benchmarking hub · Sep 22, 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 | #1 · SOTA · Coding › Web dev Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #37 · #37 in Coding › Web dev Margin 33.64485981308411 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #1 · Co-SOTA · Long context Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #33 · #33 in Long context Margin 22.448979591836732 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #4 · Near-SOTA · Vision Margin 13.15789473684211 Epoch AI benchmarking hub · Sep 22, 2026 | #28 · #28 in Vision Margin 76.3157894736842 Epoch AI benchmarking hub · Jul 9, 2026 |
| Factuality | #1 · Co-SOTA · Factuality Margin 0 LMArena leaderboard dataset · Oct 13, 2026 | #32 · Was SOTA · Factuality Margin 24.626865671641795 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 22, 2026 | — |
Claude Opus 5.5: $8.000000000000002 per 1M blended tokens.
Muse Spark 1.1: $2.0000000000000004 per 1M blended tokens.
Claude Opus 5.5: closed weights.
Muse Spark 1.1: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 5.5 leads Muse Spark 1.1 in General LLM at #2 against #10.
Reasoning: As of Oct 14, 2026, Claude Opus 5.5 leads Muse Spark 1.1 in Reasoning at #1 against #13.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 5.5 leads Muse Spark 1.1 in Coding › Web dev at #1 against #37.
Long context: As of Oct 14, 2026, Claude Opus 5.5 leads Muse Spark 1.1 in Long context at #1 against #33.
Vision: As of Oct 14, 2026, Claude Opus 5.5 leads Muse Spark 1.1 in Vision at #4 against #28.
Factuality: As of Oct 14, 2026, Claude Opus 5.5 leads Muse Spark 1.1 in Factuality at #1 against #32.
Claude Opus 5.5 · Muse Spark 1.1
Claude Opus 5.5 or Muse Spark 1.1?
As of Oct 14, 2026, Claude Opus 5.5 leads Muse Spark 1.1 in 6 of 6 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, Vision, and Factuality.
Claude Opus 5.5 or Muse Spark 1.1 for General LLM?
As of Oct 14, 2026, Claude Opus 5.5 leads Muse Spark 1.1 in General LLM at #2 against #10.
Claude Opus 5.5 or Muse Spark 1.1 for Reasoning?
As of Oct 14, 2026, Claude Opus 5.5 leads Muse Spark 1.1 in Reasoning at #1 against #13.
Claude Opus 5.5 or Muse Spark 1.1 for Coding › Web dev?
As of Oct 14, 2026, Claude Opus 5.5 leads Muse Spark 1.1 in Coding › Web dev at #1 against #37.