Claude Fable 5.1 (Xhigh, Default Fallback) vs Solar Pro 3
Which is better for the money: Claude Fable 5.1 (Xhigh, Default Fallback) by Anthropic or Solar Pro 3 by Upstage? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Trade-off
Verdict
Depends on your budget
Claude Fable 5.1 (Xhigh, Default Fallba… scores 45.4 points higher (53.2 vs 7.8) but costs 57× as much to run the benchmark ($9063 vs $159; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Claude Fable 5.1 (Xhigh, Default Fallba… when you need intelligence above 7.8, and Solar Pro 3 when 7.8 is enough.
| Metric | Claude Fable 5.1 (Xhigh, Default Fallback) | Solar Pro 3 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 53.2 | 7.8 | −85.3% Solar Pro 3 is 85.3% less intelligent |
| Total AA cost (lower is better) | $9,063.11 | $159.22 | −98.2% Solar Pro 3 is 98.2% cheaper |
| End-to-end time (lower is better) | 86.63s | 18.36s | −78.8% Solar Pro 3 is 78.8% faster |
| Price per 1M tokens (in / out) | $10.0 / $50.0 | $0.15 / $0.60 | |
| Input modalities | Text, Image | Text |
Solar Pro 3 vs Claude Fable 5.1 (Xhigh, Default Fallback): 85.3% less intelligence, 98.2% less cost to run the AA benchmark, and 78.8% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Fable 5.1 (Xhigh, Default Fallback) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Max, Default Fallback) scores 57.60 for $8708.
- Solar Pro 3 is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Xhigh) scores 41.20 for $158.
Claude Fable 5.1 (Xhigh, Default Fallback)Solar Pro 3Today's Pareto frontierEvery other model
Matchup
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