Claude Fable 5 (Max, Opus 4.8 Fallback) vs Solar Pro 3
Which is better for the money: Claude Fable 5 (Max, Opus 4.8 Fallback) by Anthropic or Solar Pro 3 by Upstage? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Trade-off
Verdict
Depends on your budget
Claude Fable 5 (Max, Opus 4.8 Fallback) scores 41.8 points higher (49.6 vs 7.8) but costs 70× as much to run the benchmark ($11161 vs $159; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Claude Fable 5 (Max, Opus 4.8 Fallback) when you need intelligence above 7.8, and Solar Pro 3 when 7.8 is enough.
| Metric | Claude Fable 5 (Max, Opus 4.8 Fallback) | Solar Pro 3 | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 49.6 | 7.8 | −84.3% Solar Pro 3 is 84.3% less intelligent |
| Total AA cost (lower is better) | $11,160.86 | $159.22 | −98.6% Solar Pro 3 is 98.6% cheaper |
| End-to-end time (lower is better) | 85.37s | 18.88s | −77.9% Solar Pro 3 is 77.9% 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 (Max, Opus 4.8 Fallback): 84.3% less intelligence, 98.6% less cost to run the AA benchmark, and 77.9% faster end-to-end.
Today's Pareto frontier
Against the frontier
- Claude Fable 5 (Max, Opus 4.8 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 (Max, Opus 4.8 Fallback)Solar Pro 3Today's Pareto frontierEvery other model
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Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-fable-5/solar-pro-3 · Markdown: /api/v1/compare/claude-fable-5/solar-pro-3?format=md · llms.txt · agent skill