GPT-6 Astra (Medium) vs Muse Spark Open (Xhigh)
Which is better for the money: GPT-6 Astra (Medium) by OpenAI or Muse Spark Open (Xhigh) by Meta? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
GPT-6 Astra (Medium) scores 10.7 points higher (49.6 vs 38.9) but costs 2.1× as much to run the benchmark ($2434 vs $1185; flagship vs premium cost classes). Pick GPT-6 Astra (Medium) when the extra intelligence is worth the premium, otherwise Muse Spark Open (Xhigh).
| Metric | GPT-6 Astra (Medium) | Muse Spark Open (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 49.6 | 38.9 | −21.6% Muse Spark Open (Xhig… is 21.6% less intelligent |
| Total AA cost (lower is better) | $2,434.12 | $1,184.90 | −51.3% Muse Spark Open (Xhig… is 51.3% cheaper |
| End-to-end time (lower is better) | 13.84s | 17.34s | +25.3% Muse Spark Open (Xhig… is 25.3% slower |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $1.25 / $4.25 | |
| Input modalities | Text, Image | Text, Image, Speech, Video |
Muse Spark Open (Xhigh) vs GPT-6 Astra (Medium): 21.6% less intelligence, 51.3% less cost to run the AA benchmark, and 25.3% slower end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-6 Astra (Medium) is off the frontier: at the same or lower cost, Claude Opus 5.5 (High, Default Fallback) scores 53.60 for $2172.
- 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 Astra (Medium)Muse Spark Open (Xhigh)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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