Claude Opus 5 vs Muse Spark 1.3
As of Oct 15, 2026, Claude Opus 5 leads Muse Spark 1.3 in 5 of 8 shared categories: Coding, Coding › Agentic, Coding › Web dev, Long context, and Factuality.
Claude Opus 5
Close. Near-SOTA in Factuality, rank #4.
Muse Spark 1.3
Yes. Yes on Coding › Web dev (best per dollar); Vision (best per dollar). Not the overall leader.
| Category | Claude Opus 5 | Muse Spark 1.3 |
|---|---|---|
| General LLM | #11 · Was SOTA · General LLM Margin 5.851063829787236 LMArena leaderboard dataset · Oct 13, 2026 | #9 · #9 in General LLM Margin 4.7872340425531945 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #9 · Was SOTA · Reasoning Margin 5.319148936170208 LMArena leaderboard dataset · Oct 13, 2026 | #8 · #8 in Reasoning Margin 4.7872340425531945 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 | #12 · #12 in Science Margin — Epoch AI benchmarking hub · Jul 24, 2026 | — |
| Coding | #4 · #4 in Coding Margin 22.727272727272734 Terminal-Bench Harbor Hub · Oct 6, 2026 | #18 · #18 in Coding Margin 86.36363636363636 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #4 · #4 in Coding › Agentic Margin 22.727272727272734 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 | #6 · Near-SOTA · Coding › Web dev Margin 4 LMArena leaderboard dataset · Oct 13, 2026 | #11 · #11 in Coding › Web dev Margin 8 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #9 · Was SOTA · Long context Margin 4.7872340425531945 LMArena leaderboard dataset · Oct 13, 2026 | #15 · #15 in Long context Margin 7.978723404255305 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #12 · #12 in Vision Margin 36.8421052631579 Epoch AI benchmarking hub · Jul 24, 2026 | #8 · #8 in Vision Margin 23.684210526315795 Epoch AI benchmarking hub · Sep 2, 2026 |
| Factuality | #4 · Near-SOTA · Factuality Margin 2.9069767441860535 LMArena leaderboard dataset · Oct 13, 2026 | #12 · #12 in Factuality Margin 7.558139534883736 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 1.3: $2.0000000000000004 per 1M blended tokens.
Claude Opus 5: closed weights.
Muse Spark 1.3: closed weights.
General LLM: As of Oct 15, 2026, Muse Spark 1.3 leads Claude Opus 5 in General LLM at #9 against #11.
Reasoning: As of Oct 15, 2026, Muse Spark 1.3 leads Claude Opus 5 in Reasoning at #8 against #9.
Coding: As of Oct 15, 2026, Claude Opus 5 leads Muse Spark 1.3 in Coding at #4 against #18.
Coding › Agentic: As of Oct 15, 2026, Claude Opus 5 leads Muse Spark 1.3 in Coding › Agentic at #4 against #18.
Coding › Web dev: As of Oct 15, 2026, Claude Opus 5 leads Muse Spark 1.3 in Coding › Web dev at #6 against #11.
Long context: As of Oct 15, 2026, Claude Opus 5 leads Muse Spark 1.3 in Long context at #9 against #15.
Vision: As of Oct 15, 2026, Muse Spark 1.3 leads Claude Opus 5 in Vision at #8 against #12.
Factuality: As of Oct 15, 2026, Claude Opus 5 leads Muse Spark 1.3 in Factuality at #4 against #12.
Claude Opus 5 · Muse Spark 1.3
Claude Opus 5 or Muse Spark 1.3?
As of Oct 15, 2026, Claude Opus 5 leads Muse Spark 1.3 in 5 of 8 shared categories: Coding, Coding › Agentic, Coding › Web dev, Long context, and Factuality.
Claude Opus 5 or Muse Spark 1.3 for General LLM?
As of Oct 15, 2026, Muse Spark 1.3 leads Claude Opus 5 in General LLM at #9 against #11.
Claude Opus 5 or Muse Spark 1.3 for Reasoning?
As of Oct 15, 2026, Muse Spark 1.3 leads Claude Opus 5 in Reasoning at #8 against #9.
Claude Opus 5 or Muse Spark 1.3 for Coding?
As of Oct 15, 2026, Claude Opus 5 leads Muse Spark 1.3 in Coding at #4 against #18.