Muse Spark Open (Xhigh) vs Nemotron 3 Ultra 550B A55B (Reasoning)
Which is better for the money: Muse Spark Open (Xhigh) by Meta or Nemotron 3 Ultra 550B A55B (Reasoning) by NVIDIA? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
Muse Spark Open (Xhigh) scores 16.0 points higher (38.9 vs 22.9) but costs 1.7× as much to run the benchmark ($1185 vs $697; both premium class). Pick Muse Spark Open (Xhigh) when the extra intelligence is worth the premium, otherwise Nemotron 3 Ultra 550B A55B (Reasoning).
| Metric | Muse Spark Open (Xhigh) | Nemotron 3 Ultra 550B A55B (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 38.9 | 22.9 | −41.1% Nemotron 3 Ultra 550B… is 41.1% less intelligent |
| Total AA cost (lower is better) | $1,184.90 | $696.84 | −41.2% Nemotron 3 Ultra 550B… is 41.2% cheaper |
| End-to-end time (lower is better) | 15.36s | 15.17s | −1.2% Nemotron 3 Ultra 550B… is 1.2% faster |
| Price per 1M tokens (in / out) | $1.25 / $4.25 | $0.60 / $2.70 | |
| Input modalities | Text, Image, Speech, Video | Text |
Nemotron 3 Ultra 550B A55B (Reasoning) vs Muse Spark Open (Xhigh): 41.1% less intelligence, 41.2% less cost to run the AA benchmark, and 1.2% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Muse Spark Open (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Nemotron 3 Ultra 550B A55B (Reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
Muse Spark Open (Xhigh)Nemotron 3 Ultra 550B A55B (Reasoning)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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