Claude Sonnet 5.5 (Low, Default Fallback) vs DeepSeek V4 Pro 0813 (Max)

Which is better for the money: Claude Sonnet 5.5 (Low, 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.

Trade-off

AnthropicClaude Sonnet 5.5 (Low, Default Fallback)Off the frontier

Intelligence: 35.90
Total cost: $482

DeepSeekDeepSeek V4 Pro 0813 (Max)Off the frontier

Intelligence: 36.00
Total cost: $1122

Verdict

Depends on your budget

DeepSeek V4 Pro 0813 (Max) scores 0.1 points higher (36.0 vs 35.9) but costs 2.3× as much to run the benchmark ($1122 vs $482; premium vs mid-range cost classes). Pick DeepSeek V4 Pro 0813 (Max) when the extra intelligence is worth the premium, otherwise Claude Sonnet 5.5 (Low, Default Fallbac….

Metric	Claude Sonnet 5.5 (Low, Default Fallback)	DeepSeek V4 Pro 0813 (Max)	Difference
Intelligence (higher is better)	35.9	36.0	+0.3% DeepSeek V4 Pro 0813 … is 0.3% more intelligent
Total AA cost (lower is better)	$482.13	$1,122.27	+132.8% DeepSeek V4 Pro 0813 … is 2.3× more expensive
End-to-end time (lower is better)	5.94s	25.65s	+331.8% DeepSeek V4 Pro 0813 … is 331.8% slower
Price per 1M tokens (in / out)	$2.00 / $10.0	$1.32 / $3.96
Input modalities	Text, Image	Text

DeepSeek V4 Pro 0813 (Max) vs Claude Sonnet 5.5 (Low, Default Fallback): 0.3% more intelligence, 132.8% more cost to run the AA benchmark, and 331.8% slower end-to-end.

Open this matchup in the interactive picker Claude Sonnet 5.5 (Low, Default Fallback): what beats it DeepSeek V4 Pro 0813 (Max): what beats it

Today's Pareto frontier

Against the frontier

Claude Sonnet 5.5 (Low, Default Fallback) is off the frontier: at the same or lower cost, GPT-6.1 Sol (Medium) scores 47.80 for $361.
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.

Claude Sonnet 5.5 (Low, Default Fallback)DeepSeek V4 Pro 0813 (Max)Today's Pareto frontierOpen-weights frontierEvery other model

Matchup

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Agents: Accept: text/markdown or ?format=md returns this page as Markdown. JSON: /api/v1/compare/claude-sonnet-5-5-low/deepseek-v4-pro · Markdown: /api/v1/compare/claude-sonnet-5-5-low/deepseek-v4-pro?format=md · llms.txt · agent skill