GPT-6 Luna (Low) vs Muse Spark 1.3 (Xhigh)
Which is better for the money: GPT-6 Luna (Low) by OpenAI or Muse Spark 1.3 (Xhigh) by Meta? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-27.
Trade-off
Verdict
Depends on your budget
Muse Spark 1.3 (Xhigh) scores 23.6 points higher (45.1 vs 21.5) but costs 135× as much to run the benchmark ($1433 vs $10.6; premium vs budget cost classes). They are not alternatives at one budget: pick Muse Spark 1.3 (Xhigh) when you need intelligence above 21.5, and GPT-6 Luna (Low) when 21.5 is enough.
| Metric | GPT-6 Luna (Low) | Muse Spark 1.3 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 21.5 | 45.1 | +109.8% Muse Spark 1.3 (Xhigh) is 2.1× more intelligent |
| Total AA cost (lower is better) | $10.63 | $1,433.35 | +13384.0% Muse Spark 1.3 (Xhigh) is 135× more expensive |
| End-to-end time (lower is better) | 6.99s | 27.32s | +290.8% Muse Spark 1.3 (Xhigh) is 290.8% slower |
| Price per 1M tokens (in / out) | $0.10 / $0.50 | $1.25 / $4.25 | |
| Input modalities | Text, Image | Text, Image, Video |
Muse Spark 1.3 (Xhigh) vs GPT-6 Luna (Low): 109.8% more intelligence, 13384.0% more cost to run the AA benchmark, and 290.8% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6 Luna (Low) is on today's frontier: nothing is both smarter and cheaper.
- Muse Spark 1.3 (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-6 Luna (Low)Muse Spark 1.3 (Xhigh)Today's Pareto frontierEvery other model
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