GPT-6.1 Terra (Non-reasoning) vs Muse Spark Open (Xhigh)
Which is better for the money: GPT-6.1 Terra (Non-reasoning) 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.
Trade-off
Verdict
Depends on your budget
Muse Spark Open (Xhigh) scores 5.4 points higher (38.9 vs 33.5) but costs 7.7× as much to run the benchmark ($1185 vs $154; premium vs mid-range cost classes). They are not alternatives at one budget: pick Muse Spark Open (Xhigh) when you need intelligence above 33.5, and GPT-6.1 Terra (Non-reasoning) when 33.5 is enough.
| Metric | GPT-6.1 Terra (Non-reasoning) | Muse Spark Open (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 33.5 | 38.9 | +16.1% Muse Spark Open (Xhig… is 16.1% more intelligent |
| Total AA cost (lower is better) | $153.58 | $1,185.26 | +671.8% Muse Spark Open (Xhig… is 7.7× more expensive |
| End-to-end time (lower is better) | 6.76s | 13.03s | +92.8% Muse Spark Open (Xhig… is 92.8% slower |
| Price per 1M tokens (in / out) | $1.00 / $5.00 | $1.25 / $4.25 | |
| Input modalities | Text, Image | Text, Image, Speech, Video |
Muse Spark Open (Xhigh) vs GPT-6.1 Terra (Non-reasoning): 16.1% more intelligence, 671.8% more cost to run the AA benchmark, and 92.8% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6.1 Terra (Non-reasoning) is off the frontier: at the same or lower cost, GPT-6 Luna (Max) scores 38.10 for $122.
- 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 (Non-reasoning)Muse Spark Open (Xhigh)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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