GPT-5.6 Luna (Non-reasoning) vs Muse Spark 1.2 (Xhigh)
Which is better for the money: GPT-5.6 Luna (Non-reasoning) by OpenAI or Muse Spark 1.2 (Xhigh) by Meta? 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 1.2 (Xhigh) scores 24.1 points higher (39.6 vs 15.5) but costs 60× as much to run the benchmark ($1385 vs $23.0; premium vs budget cost classes). They are not alternatives at one budget: pick Muse Spark 1.2 (Xhigh) when you need intelligence above 15.5, and GPT-5.6 Luna (Non-reasoning) when 15.5 is enough.
| Metric | GPT-5.6 Luna (Non-reasoning) | Muse Spark 1.2 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 15.5 | 39.6 | +155.5% Muse Spark 1.2 (Xhigh) is 2.6× more intelligent |
| Total AA cost (lower is better) | $22.97 | $1,385.40 | +5931.3% Muse Spark 1.2 (Xhigh) is 60× more expensive |
| End-to-end time (lower is better) | 4.98s | 20.76s | +316.9% Muse Spark 1.2 (Xhigh) is 316.9% slower |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $1.25 / $4.25 | |
| Input modalities | Text, Image | Text, Image, Speech, Video |
Muse Spark 1.2 (Xhigh) vs GPT-5.6 Luna (Non-reasoning): 155.5% more intelligence, 5931.3% more cost to run the AA benchmark, and 316.9% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 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 1.2 (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-5.6 Luna (Non-reasoning)Muse Spark 1.2 (Xhigh)Today's Pareto frontierEvery other model
Matchup
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