Grok 4.5 (High) vs Muse Spark 1.3 (Xhigh)
Which is better for the money: Grok 4.5 (High) by SpaceXAI or Muse Spark 1.3 (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
Muse Spark 1.3 (Xhigh) scores 6.3 points higher (45.1 vs 38.8) but costs 1.3× as much to run the benchmark ($1655 vs $1244; both premium class). Pick Muse Spark 1.3 (Xhigh) when the extra intelligence is worth the premium, otherwise Grok 4.5 (High).
| Metric | Grok 4.5 (High) | Muse Spark 1.3 (Xhigh) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 38.8 | 45.1 | +16.2% Muse Spark 1.3 (Xhigh) is 16.2% more intelligent |
| Total AA cost (lower is better) | $1,243.85 | $1,655.27 | +33.1% Muse Spark 1.3 (Xhigh) is 33.1% more expensive |
| End-to-end time (lower is better) | 18.82s | 29.94s | +59.1% Muse Spark 1.3 (Xhigh) is 59.1% slower |
| Price per 1M tokens (in / out) | $2.00 / $6.00 | $1.25 / $4.25 | |
| Input modalities | Text, Image | Text, Image, Video |
Muse Spark 1.3 (Xhigh) vs Grok 4.5 (High): 16.2% more intelligence, 33.1% more cost to run the AA benchmark, and 59.1% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Grok 4.5 (High) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
- Muse Spark 1.3 (Xhigh) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
Grok 4.5 (High)Muse Spark 1.3 (Xhigh)Today's Pareto frontierEvery other model
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