Claude Sonnet 4.5 vs Muse Spark 1.3
As of Oct 15, 2026, Claude Sonnet 4.5 leads Muse Spark 1.3 in 0 of 5 shared categories.
Claude Sonnet 4.5
It used to be. Was SOTA in General LLM.
Muse Spark 1.3
Yes. Yes on Coding › Web dev (best per dollar); Vision (best per dollar). Not the overall leader.
| Category | Claude Sonnet 4.5 | Muse Spark 1.3 |
|---|---|---|
| General LLM | #62 · Was SOTA · General LLM Margin 32.97872340425532 LMArena leaderboard dataset · Oct 13, 2026 | #9 · #9 in General LLM Margin 4.7872340425531945 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #51 · Was SOTA · Reasoning Margin 27.65957446808511 LMArena leaderboard dataset · Oct 13, 2026 | #8 · #8 in Reasoning Margin 4.7872340425531945 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #25 · #25 in Math Margin 53.333333333333336 Epoch AI benchmarking hub · Sep 29, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #82 · #82 in Science Margin — Epoch AI benchmarking hub · Sep 29, 2025 | — |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #18 · #18 in Coding Margin 86.36363636363636 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #18 · #18 in Coding › Agentic Margin 86.36363636363636 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #86 · Was SOTA · Coding › Web dev Margin 68 LMArena leaderboard dataset · Oct 13, 2026 | #11 · #11 in Coding › Web dev Margin 8 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #34 · Was SOTA · Long context Margin 18.085106382978722 LMArena leaderboard dataset · Oct 13, 2026 | #15 · #15 in Long context Margin 7.978723404255305 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | — | #8 · #8 in Vision Margin 23.684210526315795 Epoch AI benchmarking hub · Sep 2, 2026 |
| Factuality | #61 · #61 in Factuality Margin 36.04651162790697 LMArena leaderboard dataset · Oct 13, 2026 | #12 · #12 in Factuality Margin 7.558139534883736 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 1.3: $2.0000000000000004 per 1M blended tokens.
Claude Sonnet 4.5: closed weights.
Muse Spark 1.3: closed weights.
General LLM: As of Oct 15, 2026, Muse Spark 1.3 leads Claude Sonnet 4.5 in General LLM at #9 against #62.
Reasoning: As of Oct 15, 2026, Muse Spark 1.3 leads Claude Sonnet 4.5 in Reasoning at #8 against #51.
Coding › Web dev: As of Oct 15, 2026, Muse Spark 1.3 leads Claude Sonnet 4.5 in Coding › Web dev at #11 against #86.
Long context: As of Oct 15, 2026, Muse Spark 1.3 leads Claude Sonnet 4.5 in Long context at #15 against #34.
Factuality: As of Oct 15, 2026, Muse Spark 1.3 leads Claude Sonnet 4.5 in Factuality at #12 against #61.
Claude Sonnet 4.5 · Muse Spark 1.3
Claude Sonnet 4.5 or Muse Spark 1.3?
As of Oct 15, 2026, Claude Sonnet 4.5 leads Muse Spark 1.3 in 0 of 5 shared categories.
Claude Sonnet 4.5 or Muse Spark 1.3 for General LLM?
As of Oct 15, 2026, Muse Spark 1.3 leads Claude Sonnet 4.5 in General LLM at #9 against #62.
Claude Sonnet 4.5 or Muse Spark 1.3 for Reasoning?
As of Oct 15, 2026, Muse Spark 1.3 leads Claude Sonnet 4.5 in Reasoning at #8 against #51.
Claude Sonnet 4.5 or Muse Spark 1.3 for Coding › Web dev?
As of Oct 15, 2026, Muse Spark 1.3 leads Claude Sonnet 4.5 in Coding › Web dev at #11 against #86.