Muse Spark 1.3 vs O3
As of Oct 15, 2026, Muse Spark 1.3 leads O3 in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.
Muse Spark 1.3
Yes. Yes on Coding › Web dev (best per dollar); Vision (best per dollar). Not the overall leader.
O3
It used to be. Was SOTA in General LLM.
| Category | Muse Spark 1.3 | O3 |
|---|---|---|
| General LLM | #9 · #9 in General LLM Margin 4.7872340425531945 LMArena leaderboard dataset · Oct 13, 2026 | #100 · Was SOTA · General LLM Margin 53.191489361702125 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #8 · #8 in Reasoning Margin 4.7872340425531945 LMArena leaderboard dataset · Oct 13, 2026 | #117 · Was SOTA · Reasoning Margin 62.765957446808514 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #20 · Was SOTA · Math Margin 42.22222222222222 Epoch AI benchmarking hub · Apr 16, 2025 |
| Science | — | #67 · #67 in Science Margin — Epoch AI benchmarking hub · Apr 16, 2025 |
| Coding | #18 · #18 in Coding Margin 86.36363636363636 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #18 · #18 in Coding › Agentic Margin 86.36363636363636 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #11 · #11 in Coding › Web dev Margin 8 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #15 · #15 in Long context Margin 7.978723404255305 LMArena leaderboard dataset · Oct 13, 2026 | #145 · Was SOTA · Long context Margin 77.12765957446808 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #8 · #8 in Vision Margin 23.684210526315795 Epoch AI benchmarking hub · Sep 2, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #12 · #12 in Factuality Margin 7.558139534883736 LMArena leaderboard dataset · Oct 13, 2026 | #139 · #139 in Factuality Margin 81.3953488372093 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #37 · #37 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 16, 2025 |
Muse Spark 1.3: $2.0000000000000004 per 1M blended tokens.
O3: $3.5 per 1M blended tokens.
Muse Spark 1.3: closed weights.
O3: closed weights.
General LLM: As of Oct 15, 2026, Muse Spark 1.3 leads O3 in General LLM at #9 against #100.
Reasoning: As of Oct 15, 2026, Muse Spark 1.3 leads O3 in Reasoning at #8 against #117.
Long context: As of Oct 15, 2026, Muse Spark 1.3 leads O3 in Long context at #15 against #145.
Factuality: As of Oct 15, 2026, Muse Spark 1.3 leads O3 in Factuality at #12 against #139.
Muse Spark 1.3 or O3?
As of Oct 15, 2026, Muse Spark 1.3 leads O3 in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.
Muse Spark 1.3 or O3 for General LLM?
As of Oct 15, 2026, Muse Spark 1.3 leads O3 in General LLM at #9 against #100.
Muse Spark 1.3 or O3 for Reasoning?
As of Oct 15, 2026, Muse Spark 1.3 leads O3 in Reasoning at #8 against #117.
Muse Spark 1.3 or O3 for Long context?
As of Oct 15, 2026, Muse Spark 1.3 leads O3 in Long context at #15 against #145.