Claude Opus 5.5 (Xhigh, Default Fallback) vs Solar Mini 4
Which is better for the money: Claude Opus 5.5 (Xhigh, Default Fallback) by Anthropic or Solar Mini 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
Claude Opus 5.5 (Xhigh, Default Fallbac… scores 31.9 points higher (56.0 vs 24.1) but costs 8.1× as much to run the benchmark ($4057 vs $502; flagship vs premium cost classes). They are not alternatives at one budget: pick Claude Opus 5.5 (Xhigh, Default Fallbac… when you need intelligence above 24.1, and Solar Mini 4 when 24.1 is enough.
| Metric | Claude Opus 5.5 (Xhigh, Default Fallback) | Solar Mini 4 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 56.0 | 24.1 | −57.0% Solar Mini 4 is 57.0% less intelligent |
| Total AA cost (lower is better) | $4,056.65 | $502.02 | −87.6% Solar Mini 4 is 87.6% cheaper |
| End-to-end time (lower is better) | 125.20s | 23.11s | −81.5% Solar Mini 4 is 81.5% faster |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $0.10 / $0.40 | |
| Input modalities | Text, Image | Text |
Solar Mini 4 vs Claude Opus 5.5 (Xhigh, Default Fallback): 57.0% less intelligence, 87.6% less cost to run the AA benchmark, and 81.5% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Opus 5.5 (Xhigh, Default Fallback) is on today's frontier: nothing is both smarter and cheaper.
- Solar Mini 4 is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
Claude Opus 5.5 (Xhigh, Default Fallback)Solar Mini 4Today's Pareto frontierEvery other model
Matchup
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