DeepSeek V4 Flash 0420 (Max) vs Solar Pro 4
Which is better for the money: DeepSeek V4 Flash 0420 (Max) by DeepSeek or Solar Pro 4 by Upstage? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
Solar Pro 4 scores 2.4 points higher (26.6 vs 24.2) but costs 4.9× as much to run the benchmark ($737 vs $149; premium vs mid-range cost classes). They are not alternatives at one budget: pick Solar Pro 4 when you need intelligence above 24.2, and DeepSeek V4 Flash 0420 (Max) when 24.2 is enough.
| Metric | DeepSeek V4 Flash 0420 (Max) | Solar Pro 4 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 24.2 | 26.6 | +9.9% Solar Pro 4 is 9.9% more intelligent |
| Total AA cost (lower is better) | $149.48 | $736.82 | +392.9% Solar Pro 4 is 4.9× more expensive |
| End-to-end time (lower is better) | 116.55s | Not reported | — not comparable |
| Price per 1M tokens (in / out) | $0.11 / $0.23 | $0.30 / $1.20 | |
| Input modalities | Text | Text |
Solar Pro 4 vs DeepSeek V4 Flash 0420 (Max): 9.9% more intelligence, 392.9% more cost to run the AA benchmark, and end-to-end time not fully reported.
Today's Pareto frontier
Against the frontier
- DeepSeek V4 Flash 0420 (Max) is off the frontier: at the same or lower cost, GPT-6 Luna (Max) scores 38.10 for $122.
- Solar Pro 4 is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
DeepSeek V4 Flash 0420 (Max)Solar 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/deepseek-v4-flash-0420/solar-pro4 · Markdown: /api/v1/compare/deepseek-v4-flash-0420/solar-pro4?format=md · llms.txt · agent skill