Claude Sonnet 5 (Max) vs Solar Pro 4
Which is better for the money: Claude Sonnet 5 (Max) by Anthropic 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
Claude Sonnet 5 (Max) scores 11.6 points higher (38.2 vs 26.6) but costs 9.5× as much to run the benchmark ($6998 vs $737; flagship vs premium cost classes). They are not alternatives at one budget: pick Claude Sonnet 5 (Max) when you need intelligence above 26.6, and Solar Pro 4 when 26.6 is enough.
| Metric | Claude Sonnet 5 (Max) | Solar Pro 4 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 38.2 | 26.6 | −30.4% Solar Pro 4 is 30.4% less intelligent |
| Total AA cost (lower is better) | $6,998.25 | $736.82 | −89.5% Solar Pro 4 is 89.5% cheaper |
| End-to-end time (lower is better) | 183.62s | Not reported | — not comparable |
| Price per 1M tokens (in / out) | $2.00 / $10.0 | $0.30 / $1.20 | |
| Input modalities | Text, Image | Text |
Solar Pro 4 vs Claude Sonnet 5 (Max): 30.4% less intelligence, 89.5% less cost to run the AA benchmark, and end-to-end time not fully reported.
Today's Pareto frontier
Against the frontier
- Claude Sonnet 5 (Max) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
- Solar Pro 4 is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
Claude Sonnet 5 (Max)Solar Pro 4Today's Pareto frontierEvery other model
Matchup
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