DeepSeek R1 vs Claude Opus 4.8

Claude Opus 4.8 leads on benchmarks; DeepSeek R1 is cheaper to run, about 10.3× less.
Updated 2026-07-27
DeepSeek R1
DeepSeek · Open
88.2
Combined index
vs
Claude Opus 4.8
Anthropic · Closed
89.3
Combined index
Leads

Benchmarks

General knowledge (MMLU)
86.9
89.5
Coding
82.5
86
Math
95.1
92.4

API pricing

$0.55 Input / 1M $5.0
$2.19 Output / 1M $25.0
$21.95 Monthly, est. $225.0

Monthly estimate assumes 20M input + 5M output tokens. Prices marked ~ are representative hosted rates for open-weight models and vary by provider. Run your own numbers in the cost calculator.