GPT-6.1 Terra (Xhigh) vs Muse Spark Open (Xhigh)
Which is better for the money: GPT-6.1 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 2026-10-27.
Clear winner
Verdict
Pick GPT-6.1 Terra (Xhigh)
Muse Spark Open (Xhigh) vs GPT-6.1 Terra (Xhigh): 14.3% less intelligence, 224.8% more cost to run the AA benchmark, and 30.8% faster end-to-end.
| Metric | GPT-6.1 Terra (Xhigh) | Muse Spark Open (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 45.4 | 38.9 | −14.3% Muse Spark Open (Xhig… is 14.3% less intelligent |
| Total AA cost (lower is better) | $364.95 | $1,185.26 | +224.8% Muse Spark Open (Xhig… is 3.2× more expensive |
| End-to-end time (lower is better) | 18.82s | 13.03s | −30.8% Muse Spark Open (Xhig… is 30.8% faster |
| 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 (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
- 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-6.1 Terra (Xhigh)Muse Spark Open (Xhigh)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-6-1-terra-xhigh/muse-spark-open · Markdown: /api/v1/compare/gpt-6-1-terra-xhigh/muse-spark-open?format=md · llms.txt · agent skill