GPT-5.6 Luna (Medium) vs Muse Spark 1.3 (Max)
Which is better for the money: GPT-5.6 Luna (Medium) 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 23.1 points higher (48.1 vs 25.0) but costs 45× as much to run the benchmark ($2000 vs $44.3; flagship vs budget cost classes). They are not alternatives at one budget: pick Muse Spark 1.3 (Max) when you need intelligence above 25.0, and GPT-5.6 Luna (Medium) when 25.0 is enough.
| Metric | GPT-5.6 Luna (Medium) | Muse Spark 1.3 (Max) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 25.0 | 48.1 | +92.4% Muse Spark 1.3 (Max) is 92.4% more intelligent |
| Total AA cost (lower is better) | $44.32 | $2,000.35 | +4413.4% Muse Spark 1.3 (Max) is 45× more expensive |
| End-to-end time (lower is better) | 6.43s | 61.87s | +862.2% Muse Spark 1.3 (Max) is 862.2% 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 (Medium): 92.4% more intelligence, 4413.4% more cost to run the AA benchmark, and 862.2% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Luna (Medium) is off the frontier: at the same or lower cost, GPT-6 Luna (Medium) scores 29.90 for $31.2.
- Muse Spark 1.3 (Max) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-5.6 Luna (Medium)Muse Spark 1.3 (Max)Today's Pareto frontierEvery other model
Matchup
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