Claude Opus 5.5 (High, Default Fallback) vs DeepSeek V4 Pro 0813 (Non-reasoning)
Which is better for the money: Claude Opus 5.5 (High, Default Fallback) by Anthropic or DeepSeek V4 Pro 0813 (Non-reasoning) by DeepSeek? Intelligence, total benchmark cost, and end-to-end time from Artificial Analysis & other sources, snapshot 2026-10-26.
Depends on your budget
Claude Opus 5.5 (High, Default Fallback) scores 33.2 points higher (53.6 vs 20.4) but costs 4.8× as much to run the benchmark ($2172 vs $451; flagship vs mid-range cost classes). They are not alternatives at one budget: pick Claude Opus 5.5 (High, Default Fallback) when you need intelligence above 20.4, and DeepSeek V4 Pro 0813 (Non-reasoning) when 20.4 is enough.
| Metric | Claude Opus 5.5 (High, Default Fallback) | DeepSeek V4 Pro 0813 (Non-reasoning) | Difference |
|---|---|---|---|
| Intelligence (higher is better) | 53.6 | 20.4 | −61.9% DeepSeek V4 Pro 0813 … is 61.9% less intelligent |
| Total AA cost (lower is better) | $2,172.43 | $450.76 | −79.3% DeepSeek V4 Pro 0813 … is 79.3% cheaper |
| End-to-end time (lower is better) | 39.33s | 6.58s | −83.3% DeepSeek V4 Pro 0813 … is 83.3% faster |
| Price per 1M tokens (in / out) | $4.00 / $20.0 | $1.32 / $3.96 | |
| Input modalities | Text, Image | Text |
DeepSeek V4 Pro 0813 (Non-reasoning) vs Claude Opus 5.5 (High, Default Fallback): 61.9% less intelligence, 79.3% less cost to run the AA benchmark, and 83.3% faster end-to-end.
Against the frontier
- Claude Opus 5.5 (High, Default Fallback) is on today's frontier: nothing is both smarter and cheaper.
- DeepSeek V4 Pro 0813 (Non-reasoning) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
Compare something else
Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-opus-5-5-high/deepseek-v4-pro-non-reasoning · Markdown: /api/v1/compare/claude-opus-5-5-high/deepseek-v4-pro-non-reasoning?format=md · llms.txt · agent skill