GPT-5.6 Sol (Max) vs Muse Spark Open (Xhigh)
Which is better for the money: GPT-5.6 Sol (Max) by OpenAI or Muse Spark Open (Xhigh) by Meta? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-24.
Trade-off
Verdict
Depends on your budget
GPT-5.6 Sol (Max) scores 8.1 points higher (47.0 vs 38.9) but costs 2.9× as much to run the benchmark ($3465 vs $1185; flagship vs premium cost classes). Pick GPT-5.6 Sol (Max) when the extra intelligence is worth the premium, otherwise Muse Spark Open (Xhigh).
| Metric | GPT-5.6 Sol (Max) | Muse Spark Open (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 47.0 | 38.9 | −17.2% Muse Spark Open (Xhig… is 17.2% less intelligent |
| Total AA cost (lower is better) | $3,464.84 | $1,184.90 | −65.8% Muse Spark Open (Xhig… is 65.8% cheaper |
| End-to-end time (lower is better) | 91.96s | 17.34s | −81.1% Muse Spark Open (Xhig… is 81.1% faster |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $1.25 / $4.25 | |
| Input modalities | Text, Image | Text, Image, Speech, Video |
Muse Spark Open (Xhigh) vs GPT-5.6 Sol (Max): 17.2% less intelligence, 65.8% less cost to run the AA benchmark, and 81.1% faster end-to-end.
Today's Pareto frontier
Against the frontier
- GPT-5.6 Sol (Max) is off the frontier: at the same or lower cost, Kimi K3.1 Pro scores 55.10 for $3117.
- 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 Sol (Max)Muse Spark Open (Xhigh)Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
Compare something else
Agents:
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/gpt-5-6-sol/muse-spark-open · Markdown: /api/v1/compare/gpt-5-6-sol/muse-spark-open?format=md · llms.txt · agent skill