LongCat 2.0 vs Solar Pro 4
Which is better for the money: LongCat 2.0 by LongCat 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 7.5 points higher (26.6 vs 19.1) but costs 1.4× as much to run the benchmark ($737 vs $545; both premium class). Pick Solar Pro 4 when the extra intelligence is worth the premium, otherwise LongCat 2.0.
| Metric | LongCat 2.0 | Solar Pro 4 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 19.1 | 26.6 | +39.3% Solar Pro 4 is 39.3% more intelligent |
| Total AA cost (lower is better) | $544.74 | $736.82 | +35.3% Solar Pro 4 is 35.3% more expensive |
| End-to-end time (lower is better) | 35.54s | Not reported | — not comparable |
| Price per 1M tokens (in / out) | $0.75 / $2.95 | $0.30 / $1.20 | |
| Input modalities | Text | Text |
Solar Pro 4 vs LongCat 2.0: 39.3% more intelligence, 35.3% more cost to run the AA benchmark, and end-to-end time not fully reported.
Today's Pareto frontier
Against the frontier
- LongCat 2.0 is off the frontier: at the same or lower cost, GPT-6.1 Sol (High) scores 50.20 for $521.
- Solar Pro 4 is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
LongCat 2.0Solar Pro 4Today's Pareto frontierOpen-weights frontierEvery other model
Matchup
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/longcat-2-0/solar-pro4 · Markdown: /api/v1/compare/longcat-2-0/solar-pro4?format=md · llms.txt · agent skill