GPT-4.5 Preview vs Muse Spark 1.3
As of Oct 15, 2026, GPT-4.5 Preview leads Muse Spark 1.3 in 0 of 3 shared categories.
GPT-4.5 Preview
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-4.5 Preview | Muse Spark 1.3 |
|---|---|---|
| General LLM | #62 · Was SOTA · General LLM Margin 42.17687074829932 LMArena leaderboard dataset · Oct 13, 2026 | #9 · #9 in General LLM Margin 6.122448979591837 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #93 · Was SOTA · Reasoning Margin 64.38356164383562 LMArena leaderboard dataset · Oct 13, 2026 | #8 · #8 in Reasoning Margin 6.164383561643831 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #38 · #38 in Math Margin 84.44444444444444 Epoch AI benchmarking hub · Feb 27, 2025 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #92 · #92 in Science Margin — Epoch AI benchmarking hub · Feb 27, 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 | — | #10 · #10 in Coding › Web dev Margin 8.411214953271028 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #76 · Was SOTA · Long context Margin 51.70068027210884 LMArena leaderboard dataset · Oct 13, 2026 | #15 · #15 in Long context Margin 10.204081632653057 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #8 · #8 in Vision Margin 23.684210526315795 Epoch AI benchmarking hub · Sep 2, 2026 |
| Factuality | — | #11 · #11 in Factuality Margin 8.955223880597018 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #83 · #83 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Feb 27, 2025 | — |
GPT-4.5 Preview: price per 1M tokens is unset in the catalog.
Muse Spark 1.3: $2.0000000000000004 per 1M blended tokens.
GPT-4.5 Preview: closed weights.
Muse Spark 1.3: closed weights.
General LLM: As of Oct 15, 2026, Muse Spark 1.3 leads GPT-4.5 Preview in General LLM at #9 against #62.
Reasoning: As of Oct 15, 2026, Muse Spark 1.3 leads GPT-4.5 Preview in Reasoning at #8 against #93.
Long context: As of Oct 15, 2026, Muse Spark 1.3 leads GPT-4.5 Preview in Long context at #15 against #76.
GPT-4.5 Preview · Muse Spark 1.3
GPT-4.5 Preview or Muse Spark 1.3?
As of Oct 15, 2026, GPT-4.5 Preview leads Muse Spark 1.3 in 0 of 3 shared categories.
GPT-4.5 Preview or Muse Spark 1.3 for General LLM?
As of Oct 15, 2026, Muse Spark 1.3 leads GPT-4.5 Preview in General LLM at #9 against #62.
GPT-4.5 Preview or Muse Spark 1.3 for Reasoning?
As of Oct 15, 2026, Muse Spark 1.3 leads GPT-4.5 Preview in Reasoning at #8 against #93.
GPT-4.5 Preview or Muse Spark 1.3 for Long context?
As of Oct 15, 2026, Muse Spark 1.3 leads GPT-4.5 Preview in Long context at #15 against #76.