GPT-6 Luna (Non-reasoning) vs Muse Spark Open (Xhigh)
Which is better for the money: GPT-6 Luna (Non-reasoning) by OpenAI or Muse Spark Open (Xhigh) by Meta? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
Muse Spark Open (Xhigh) scores 20.4 points higher (38.9 vs 18.5) but costs 62× as much to run the benchmark ($1185 vs $19.2; premium vs budget cost classes). They are not alternatives at one budget: pick Muse Spark Open (Xhigh) when you need intelligence above 18.5, and GPT-6 Luna (Non-reasoning) when 18.5 is enough.
| Metric | GPT-6 Luna (Non-reasoning) | Muse Spark Open (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 18.5 | 38.9 | +110.3% Muse Spark Open (Xhig… is 2.1× more intelligent |
| Total AA cost (lower is better) | $19.16 | $1,184.90 | +6084.2% Muse Spark Open (Xhig… is 62× more expensive |
| End-to-end time (lower is better) | 5.09s | 16.47s | +223.6% Muse Spark Open (Xhig… is 223.6% slower |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $1.25 / $4.25 | |
| Input modalities | Text, Image | Text, Image, Speech, Video |
Muse Spark Open (Xhigh) vs GPT-6 Luna (Non-reasoning): 110.3% more intelligence, 6084.2% more cost to run the AA benchmark, and 223.6% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6 Luna (Non-reasoning) is off the frontier: at the same or lower cost, GPT-6 Luna (Low) scores 21.50 for $10.6.
- Muse Spark Open (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-6 Luna (Non-reasoning)Muse Spark Open (Xhigh)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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