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DeepSeek Pro Latest vs Claude Sonnet 5

Side-by-side API pricing and Artificial Analysis performance for DeepSeek Pro Latest (~deepseek) and Claude Sonnet 5 (Anthropic). Green cells mark the better value in each row.

Prices updated Sep 19, 2026, 9:09 PM UTC · refreshed hourly

DeepSeek Pro Latest

~deepseek

Claude Sonnet 5

Anthropic

Pricing
Input $/1M$0.578$2.00
Output $/1M$1.73$10.00
Blended $/1M (3:1)$0.867$4.00
RAG example (30K in / 2K out)$0.0208$0.08
Quality & speed
Intelligence Index38.2
Coding Index71.5
Agentic Index44.3
Output speed (tok/s)86
Time to first token120.21s
Specs
Context window1.05M1M
Input modalitiestexttext, image, file

FAQ

Which is cheaper, DeepSeek Pro Latest or Claude Sonnet 5?

DeepSeek Pro Latest has the lower blended API price at $0.867 per 1M tokens (3:1 input:output mix), versus $4.00 for the other model. Prices are live from OpenRouter and refresh about hourly.

Which is better for RAG workloads?

For a typical RAG request (30K input / 2K output tokens), DeepSeek Pro Latest costs about $0.0208 per request versus $0.08. Also compare context windows: DeepSeek Pro Latest offers 1.05M and Claude Sonnet 5 offers 1M.

Which scores higher on Artificial Analysis benchmarks?

Claude Sonnet 5 leads on the Artificial Analysis Intelligence Index (38.2 vs —). Check coding and agentic indices on this page for workload-specific tradeoffs.