GPT-5.6 Luna (Xhigh) vs Muse Spark 1.3 (Max)
Which is better for the money: GPT-5.6 Luna (Xhigh) by OpenAI or Muse Spark 1.3 (Max) 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 1.3 (Max) scores 13.5 points higher (48.1 vs 34.6) but costs 22× as much to run the benchmark ($3905 vs $179; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Muse Spark 1.3 (Max) when you need intelligence above 34.6, and GPT-5.6 Luna (Xhigh) when 34.6 is enough.
| Metric | GPT-5.6 Luna (Xhigh) | Muse Spark 1.3 (Max) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 34.6 | 48.1 | +39.0% Muse Spark 1.3 (Max) is 39.0% more intelligent |
| Total AA cost (lower is better) | $179.33 | $3,904.90 | +2077.5% Muse Spark 1.3 (Max) is 22× more expensive |
| End-to-end time (lower is better) | 45.80s | 59.16s | +29.2% Muse Spark 1.3 (Max) is 29.2% slower |
| Price per 1M tokens (in / out) | $0.20 / $1.20 | $1.25 / $4.25 | |
| Input modalities | Text, Image | Text, Image, Video |
Muse Spark 1.3 (Max) vs GPT-5.6 Luna (Xhigh): 39.0% more intelligence, 2077.5% more cost to run the AA benchmark, and 29.2% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Luna (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Terra (Medium) scores 41.30 for $175.
- Muse Spark 1.3 (Max) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
GPT-5.6 Luna (Xhigh)Muse Spark 1.3 (Max)Today's Pareto frontierEvery other model
Matchup
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