GPT-5.6 Terra (Xhigh) vs Muse Spark Open (Xhigh)
Which is better for the money: GPT-5.6 Terra (Xhigh) by OpenAI or Muse Spark Open (Xhigh) by Meta? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Clear winner
Verdict
Pick Muse Spark Open (Xhigh)
Muse Spark Open (Xhigh) vs GPT-5.6 Terra (Xhigh): 2.4% more intelligence, 0.2% less cost to run the AA benchmark, and 54.4% faster end-to-end.
| Metric | GPT-5.6 Terra (Xhigh) | Muse Spark Open (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 38.0 | 38.9 | +2.4% Muse Spark Open (Xhig… is 2.4% more intelligent |
| Total AA cost (lower is better) | $1,186.77 | $1,184.90 | −0.2% Muse Spark Open (Xhig… is 0.2% cheaper |
| End-to-end time (lower is better) | 33.69s | 15.36s | −54.4% Muse Spark Open (Xhig… is 54.4% faster |
| Price per 1M tokens (in / out) | $2.00 / $12.0 | $1.25 / $4.25 | |
| Input modalities | Text, Image | Text, Image, Speech, Video |
Today's Pareto frontier
Against the frontier
- GPT-5.6 Terra (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Muse Spark Open (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
GPT-5.6 Terra (Xhigh)Muse Spark Open (Xhigh)Today's Pareto frontierOpen-weights frontierEvery other model
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