GPT-5.4 nano (Xhigh) vs Solar Pro 4
Which is better for the money: GPT-5.4 nano (Xhigh) by OpenAI 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
Solar Pro 4 scores 5.9 points higher (26.6 vs 20.7) but costs 2.2× as much to run the benchmark ($737 vs $331; premium vs mid-range cost classes). Pick Solar Pro 4 when the extra intelligence is worth the premium, otherwise GPT-5.4 nano (Xhigh).
| Metric | GPT-5.4 nano (Xhigh) | Solar Pro 4 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 20.7 | 26.6 | +28.5% Solar Pro 4 is 28.5% more intelligent |
| Total AA cost (lower is better) | $331.24 | $736.82 | +122.4% Solar Pro 4 is 2.2× more expensive |
| End-to-end time (lower is better) | 53.29s | Not reported | — not comparable |
| Price per 1M tokens (in / out) | $0.20 / $1.25 | $0.30 / $1.20 | |
| Input modalities | Text, Image | Text |
Solar Pro 4 vs GPT-5.4 nano (Xhigh): 28.5% more intelligence, 122.4% more cost to run the AA benchmark, and end-to-end time not fully reported.
Today's Pareto frontier
Against the frontier
- GPT-5.4 nano (Xhigh) is off the frontier: at the same or lower cost, MiMo-V2.6-Pro scores 46.30 for $207.
- Solar Pro 4 is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
GPT-5.4 nano (Xhigh)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/gpt-5-4-nano/solar-pro4 · Markdown: /api/v1/compare/gpt-5-4-nano/solar-pro4?format=md · llms.txt · agent skill