Claude Opus 4 vs DeepSeek R1

Performance benchmarks + pricing comparison — updated April 2026

Claude Opus 4

Anthropic

Anthropic's most powerful model. Best for complex reasoning and challenging coding tasks.

Input$15.00/M
Output$75.00/M
Context200K tokens
Best ForComplex architecture decisions, debugging hard bugs, research
Benchmark86/100

DeepSeek R1

DeepSeek

DeepSeek's reasoning model. Open-weight model that rivals o1 for complex reasoning tasks.

Input$0.140/M
Output$0.550/M
Context128K tokens
Best ForMath, coding, science reasoning at low cost

Cost Comparison by Scenario

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

ScenarioClaude Opus 4DeepSeek R1Savings
Small Script (1K lines) $3.08 $0.02 DeepSeek R1 saves $3.06 (99%)
Medium Feature (10K lines) $23.29 $0.16 DeepSeek R1 saves $23.13 (99%)
Large Project (50K lines) $116.44 $0.80 DeepSeek R1 saves $115.64 (99%)
Code Review (5K lines) $6.02 $0.04 DeepSeek R1 saves $5.98 (99%)

Verdict

DeepSeek R1 wins on both price and performance — $0.140/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

Compare with Other Models