Claude Fable 5.2 (High, Default Fallback) vs Nemotron 3 Ultra 550B A55B (Reasoning)
Which is better for the money: Claude Fable 5.2 (High, Default Fallback) by Anthropic or Nemotron 3 Ultra 550B A55B (Reasoning) by NVIDIA? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-11-10.
Depends on your budget
Claude Fable 5.2 (High, Default Fallbac… scores 50.0 points higher (61.8 vs 11.8) but costs 4.6× as much to run the benchmark ($7106 vs $1542; flagship vs premium cost classes). They are not alternatives at one budget: pick Claude Fable 5.2 (High, Default Fallbac… when you need intelligence above 11.8, and Nemotron 3 Ultra 550B A55B (Reasoning) when 11.8 is enough.
| Metric | Claude Fable 5.2 (High, Default Fallback) | Nemotron 3 Ultra 550B A55B (Reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 61.8 | 11.8 | −80.9% Nemotron 3 Ultra 550B… is 80.9% less intelligent |
| Total AA cost (lower is better) | $7,105.77 | $1,541.98 | −78.3% Nemotron 3 Ultra 550B… is 78.3% cheaper |
| End-to-end time (lower is better) | 36.05s | 12.11s | −66.4% Nemotron 3 Ultra 550B… is 66.4% faster |
| Price per 1M tokens (in / out) | $8.00 / $40.0 | $0.60 / $2.70 | |
| Input modalities | Text, Image | Text |
Nemotron 3 Ultra 550B A55B (Reasoning) vs Claude Fable 5.2 (High, Default Fallback): 80.9% less intelligence, 78.3% less cost to run the AA benchmark, and 66.4% faster end-to-end.
Against the frontier
- Claude Fable 5.2 (High, Default Fallback) is on today's frontier: nothing is both smarter and cheaper.
- Nemotron 3 Ultra 550B A55B (Reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 54.60 for $1124.
Compare something else
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-fable-5-2-high/nvidia-nemotron-3-ultra-550b-a55b · Markdown: /api/v1/compare/claude-fable-5-2-high/nvidia-nemotron-3-ultra-550b-a55b?format=md · llms.txt · agent skill