Muse Spark Open (Xhigh) vs Solar Pro 4
Which is better for the money: Muse Spark Open (Xhigh) by Meta or Solar Pro 4 by Upstage? 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
Muse Spark Open (Xhigh) scores 12.3 points higher (38.9 vs 26.6) but costs 1.6× as much to run the benchmark ($1185 vs $737; both premium class). Pick Muse Spark Open (Xhigh) when the extra intelligence is worth the premium, otherwise Solar Pro 4.
| Metric | Muse Spark Open (Xhigh) | Solar Pro 4 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 38.9 | 26.6 | −31.6% Solar Pro 4 is 31.6% less intelligent |
| Total AA cost (lower is better) | $1,184.90 | $736.82 | −37.8% Solar Pro 4 is 37.8% cheaper |
| End-to-end time (lower is better) | 17.34s | Not reported | — not comparable |
| Price per 1M tokens (in / out) | $1.25 / $4.25 | $0.30 / $1.20 | |
| Input modalities | Text, Image, Speech, Video | Text |
Solar Pro 4 vs Muse Spark Open (Xhigh): 31.6% less intelligence, 37.8% less cost to run the AA benchmark, and end-to-end time not fully reported.
Today's Pareto frontier
Against the frontier
- Muse Spark Open (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Solar Pro 4 is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
Muse Spark Open (Xhigh)Solar Pro 4Today'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/muse-spark-open/solar-pro4 · Markdown: /api/v1/compare/muse-spark-open/solar-pro4?format=md · llms.txt · agent skill