GPT-6.1 Terra (High) vs Muse Spark Open (Xhigh)
Which is better for the money: GPT-6.1 Terra (High) by OpenAI or Muse Spark Open (Xhigh) by Meta? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-28.
Clear winner
Verdict
Pick GPT-6.1 Terra (High)
Muse Spark Open (Xhigh) vs GPT-6.1 Terra (High): 41.6% less intelligence, 536.2% more cost to run the AA benchmark, and 31.7% slower end-to-end.
| Metric | GPT-6.1 Terra (High) | Muse Spark Open (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 42.3 | 24.7 | −41.6% Muse Spark Open (Xhig… is 41.6% less intelligent |
| Total AA cost (lower is better) | $266.79 | $1,697.21 | +536.2% Muse Spark Open (Xhig… is 6.4× more expensive |
| End-to-end time (lower is better) | 11.16s | 14.70s | +31.7% Muse Spark Open (Xhig… is 31.7% slower |
| Price per 1M tokens (in / out) | $1.00 / $5.00 | $1.25 / $4.25 | |
| Input modalities | Text, Image | Text, Image, Speech, Video |
Today's Pareto frontier
Against the frontier
- GPT-6.1 Terra (High) is on today's frontier: nothing is both smarter and cheaper.
- Muse Spark Open (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 54.50 for $1124.
GPT-6.1 Terra (High)Muse Spark Open (Xhigh)Today's Pareto frontierOpen-weights frontierEvery other model
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