Grok 4.5 (High) vs Solar Pro 4
Which is better for the money: Grok 4.5 (High) by SpaceXAI 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
Grok 4.5 (High) scores 12.2 points higher (38.8 vs 26.6) but costs 1.7× as much to run the benchmark ($1244 vs $737; both premium class). Pick Grok 4.5 (High) when the extra intelligence is worth the premium, otherwise Solar Pro 4.
| Metric | Grok 4.5 (High) | Solar Pro 4 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 38.8 | 26.6 | −31.4% Solar Pro 4 is 31.4% less intelligent |
| Total AA cost (lower is better) | $1,243.85 | $736.82 | −40.8% Solar Pro 4 is 40.8% cheaper |
| End-to-end time (lower is better) | 18.82s | Not reported | — not comparable |
| Price per 1M tokens (in / out) | $2.00 / $6.00 | $0.30 / $1.20 | |
| Input modalities | Text, Image | Text |
Solar Pro 4 vs Grok 4.5 (High): 31.4% less intelligence, 40.8% less cost to run the AA benchmark, and end-to-end time not fully reported.
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.
- Solar Pro 4 is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
Grok 4.5 (High)Solar Pro 4Today's Pareto frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/grok-4-5/solar-pro4 · Markdown: /api/v1/compare/grok-4-5/solar-pro4?format=md · llms.txt · agent skill