GPT-5.6 Luna (High) vs Muse Spark 1.2 (Xhigh)
Which is better for the money: GPT-5.6 Luna (High) 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 7.5 points higher (39.6 vs 32.1) but costs 13× as much to run the benchmark ($1385 vs $108; premium vs mid-range cost classes). They are not alternatives at one budget: pick Muse Spark 1.2 (Xhigh) when you need intelligence above 32.1, and GPT-5.6 Luna (High) when 32.1 is enough.
| Metric | GPT-5.6 Luna (High) | Muse Spark 1.2 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 32.1 | 39.6 | +23.4% Muse Spark 1.2 (Xhigh) is 23.4% more intelligent |
| Total AA cost (lower is better) | $108.15 | $1,385.40 | +1181.0% Muse Spark 1.2 (Xhigh) is 13× more expensive |
| End-to-end time (lower is better) | 14.62s | 20.76s | +42.0% Muse Spark 1.2 (Xhigh) is 42.0% 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 (High): 23.4% more intelligence, 1181.0% more cost to run the AA benchmark, and 42.0% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Luna (High) is off the frontier: at the same or lower cost, Claude Haiku 5.5 (High) scores 37.80 for $94.1.
- 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 (High)Muse Spark 1.2 (Xhigh)Today's Pareto frontierEvery other model
Matchup
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