Claude Opus 5.5 (Max, Default Fallback) vs DeepSeek V4 Pro 0813 (Max)
Which is better for the money: Claude Opus 5.5 (Max, Default Fallback) by Anthropic or DeepSeek V4 Pro 0813 (Max) by DeepSeek? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-25.
Depends on your budget
Claude Opus 5.5 (Max, Default Fallback) scores 21.6 points higher (57.6 vs 36.0) but costs 7.8× as much to run the benchmark ($8708 vs $1122; flagship vs premium cost classes). They are not alternatives at one budget: pick Claude Opus 5.5 (Max, Default Fallback) when you need intelligence above 36.0, and DeepSeek V4 Pro 0813 (Max) when 36.0 is enough.
| Metric | Claude Opus 5.5 (Max, Default Fallback) | DeepSeek V4 Pro 0813 (Max) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 57.6 | 36.0 | −37.5% DeepSeek V4 Pro 0813 … is 37.5% less intelligent |
| Total AA cost (lower is better) | $8,708.20 | $1,122.27 | −87.1% DeepSeek V4 Pro 0813 … is 87.1% cheaper |
| End-to-end time (lower is better) | 643.67s | 25.92s | −96.0% DeepSeek V4 Pro 0813 … is 96.0% faster |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $1.32 / $3.96 | |
| Input modalities | Text, Image | Text |
DeepSeek V4 Pro 0813 (Max) vs Claude Opus 5.5 (Max, Default Fallback): 37.5% less intelligence, 87.1% less cost to run the AA benchmark, and 96.0% faster end-to-end.
Against the frontier
- Claude Opus 5.5 (Max, Default Fallback) is on today's frontier: nothing is both smarter and cheaper.
- DeepSeek V4 Pro 0813 (Max) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Max) scores 51.80 for $1082.
Compare something else
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-opus-5-5/deepseek-v4-pro · Markdown: /api/v1/compare/claude-opus-5-5/deepseek-v4-pro?format=md · llms.txt · agent skill