Claude Sonnet 5.5 (High, Default Fallback) vs Solar Pro 4
Which is better for the money: Claude Sonnet 5.5 (High, Default Fallback) 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 5.5 (High, Default Fallba… scores 20.2 points higher (46.8 vs 26.6) but costs 1.4× as much to run the benchmark ($1027 vs $737; both premium class). Pick Claude Sonnet 5.5 (High, Default Fallba… when the extra intelligence is worth the premium, otherwise Solar Pro 4.
| Metric | Claude Sonnet 5.5 (High, Default Fallback) | Solar Pro 4 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 46.8 | 26.6 | −43.2% Solar Pro 4 is 43.2% less intelligent |
| Total AA cost (lower is better) | $1,027.40 | $736.82 | −28.3% Solar Pro 4 is 28.3% cheaper |
| End-to-end time (lower is better) | 14.89s | 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 5.5 (High, Default Fallback): 43.2% less intelligence, 28.3% less cost to run the AA benchmark, and end-to-end time not fully reported.
Today's Pareto frontier
Against the frontier
- Claude Sonnet 5.5 (High, Default Fallback) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Xhigh) scores 51.00 for $662.
- 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 5.5 (High, Default Fallback)Solar Pro 4Today's Pareto frontierEvery other model
Matchup
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