GPT-5.5 vs Muse Spark 1.3
As of Oct 14, 2026, GPT-5.5 leads Muse Spark 1.3 in 1 of 6 shared categories: Factuality.
GPT-5.5
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 | GPT-5.5 | Muse Spark 1.3 |
|---|---|---|
| General LLM | #21 · Was SOTA · General LLM Margin 14.285714285714292 LMArena leaderboard dataset · Oct 13, 2026 | #9 · #9 in General LLM Margin 6.122448979591837 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #25 · #25 in Reasoning Margin 17.808219178082197 LMArena leaderboard dataset · Oct 13, 2026 | #8 · #8 in Reasoning Margin 6.164383561643831 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 | #30 · #30 in Science Margin — Epoch AI benchmarking hub · Apr 23, 2026 | — |
| 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 | #44 · #44 in Coding › Web dev Margin 40.18691588785047 LMArena leaderboard dataset · Oct 13, 2026 | #10 · #10 in Coding › Web dev Margin 8.411214953271028 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #23 · Was SOTA · Long context Margin 15.646258503401356 LMArena leaderboard dataset · Oct 13, 2026 | #15 · #15 in Long context Margin 10.204081632653057 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #10 · Was SOTA · Vision Margin 28.94736842105263 Epoch AI benchmarking hub · Apr 23, 2026 | #8 · #8 in Vision Margin 23.684210526315795 Epoch AI benchmarking hub · Sep 2, 2026 |
| Factuality | #5 · Was SOTA · Factuality Margin 4.477611940298502 LMArena leaderboard dataset · Oct 13, 2026 | #11 · #11 in Factuality Margin 8.955223880597018 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #7 · #7 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 23, 2026 | — |
GPT-5.5: $11.25 per 1M blended tokens.
Muse Spark 1.3: $2.0000000000000004 per 1M blended tokens.
GPT-5.5: closed weights.
Muse Spark 1.3: closed weights.
General LLM: As of Oct 14, 2026, Muse Spark 1.3 leads GPT-5.5 in General LLM at #9 against #21.
Reasoning: As of Oct 14, 2026, Muse Spark 1.3 leads GPT-5.5 in Reasoning at #8 against #25.
Coding › Web dev: As of Oct 14, 2026, Muse Spark 1.3 leads GPT-5.5 in Coding › Web dev at #10 against #44.
Long context: As of Oct 14, 2026, Muse Spark 1.3 leads GPT-5.5 in Long context at #15 against #23.
Vision: As of Oct 14, 2026, Muse Spark 1.3 leads GPT-5.5 in Vision at #8 against #10.
Factuality: As of Oct 14, 2026, GPT-5.5 leads Muse Spark 1.3 in Factuality at #5 against #11.
GPT-5.5 or Muse Spark 1.3?
As of Oct 14, 2026, GPT-5.5 leads Muse Spark 1.3 in 1 of 6 shared categories: Factuality.
GPT-5.5 or Muse Spark 1.3 for General LLM?
As of Oct 14, 2026, Muse Spark 1.3 leads GPT-5.5 in General LLM at #9 against #21.
GPT-5.5 or Muse Spark 1.3 for Reasoning?
As of Oct 14, 2026, Muse Spark 1.3 leads GPT-5.5 in Reasoning at #8 against #25.
GPT-5.5 or Muse Spark 1.3 for Coding › Web dev?
As of Oct 14, 2026, Muse Spark 1.3 leads GPT-5.5 in Coding › Web dev at #10 against #44.