Celeris-1 vs Claude Sonnet 5.5 (Max, Default Fallback)
Which is better for the money: Celeris-1 by Celeris or Claude Sonnet 5.5 (Max, Default Fallback) by Anthropic? 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 (Max, Default Fallbac… scores 49.7 points higher (56.0 vs 6.3) but costs 121× as much to run the benchmark ($7260 vs $60.0; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Claude Sonnet 5.5 (Max, Default Fallbac… when you need intelligence above 6.3, and Celeris-1 when 6.3 is enough.
| Metric | Celeris-1 | Claude Sonnet 5.5 (Max, Default Fallback) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 6.3 | 56.0 | +788.9% Claude Sonnet 5.5 (Ma… is 8.9× more intelligent |
| Total AA cost (lower is better) | $59.99 | $7,259.50 | +12001.2% Claude Sonnet 5.5 (Ma… is 121× more expensive |
| End-to-end time (lower is better) | 0.87s | 360.53s | +41340.2% Claude Sonnet 5.5 (Ma… is 41340.2% slower |
| Price per 1M tokens (in / out) | $0.20 / $0.70 | $2.00 / $10.0 | |
| Input modalities | Text, Image | Text, Image |
Claude Sonnet 5.5 (Max, Default Fallback) vs Celeris-1: 788.9% more intelligence, 12001.2% more cost to run the AA benchmark, and 41340.2% slower end-to-end.
Today's Pareto frontier
Against the frontier
- Celeris-1 is off the frontier: at the same or lower cost, Claude Haiku 5.5 (Medium) scores 34.50 for $56.4.
- Claude Sonnet 5.5 (Max, Default Fallback) is off the frontier: at the same or lower cost, Claude Opus 5.5 (Xhigh, Default Fallback) scores 56.00 for $4057.
Celeris-1Claude Sonnet 5.5 (Max, Default Fallback)Today's Pareto frontierEvery other model
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