Claude Opus 4 vs DeepSeek Chat V3

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 Chat V3

DeepSeek

Very affordable general-purpose model from DeepSeek. Strong coding and reasoning at low cost.

Input$0.270/M
Output$1.10/M
Context128K tokens
Best ForCost-sensitive projects, coding, general tasks
Benchmark62/100

Benchmark Performance Comparison

Third-party benchmark scores — higher is better. Data sourced from SWE-bench, LiveCodeBench, HumanEval, and BigCodeBench.

BenchmarkClaude Opus 4DeepSeek Chat V3Leader
Overall Score 86 62 Claude Opus 4 leads by 24pts
SWE-bench Verified 84 56 Claude Opus 4 leads by 28pts
LiveCodeBench 88 64 Claude Opus 4 leads by 24pts
HumanEval 96 84 Claude Opus 4 leads by 12pts
BigCodeBench 76 46 Claude Opus 4 leads by 30pts

Cost Comparison by Scenario

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

ScenarioClaude Opus 4DeepSeek Chat V3Savings
Small Script (1K lines) $3.08 $0.04 DeepSeek Chat V3 saves $3.04 (99%)
Medium Feature (10K lines) $23.29 $0.31 DeepSeek Chat V3 saves $22.97 (99%)
Large Project (50K lines) $116.44 $1.57 DeepSeek Chat V3 saves $114.86 (99%)
Code Review (5K lines) $6.02 $0.07 DeepSeek Chat V3 saves $5.94 (99%)

Value Analysis (Price per Benchmark Score Point)

Lower is better — how much you pay for each point of benchmark performance.

ModelOverall ScorePrice per Score PointVerdict
Claude Opus 4 86 $0.174/pt Higher cost per point
DeepSeek Chat V3 62 $0.004/pt Better value

DeepSeek Chat V3 delivers the best value at $0.004 per score point.

Strengths & Weaknesses

Claude Opus 4

  • + Best at complex reasoning
  • + Strong system design
  • + Excellent debugging
  • - Expensive for bulk tasks
  • - Slower response times

DeepSeek Chat V3

  • + Excellent value
  • + Strong coding focus
  • - Less general-purpose

Verdict

DeepSeek Chat V3 is cheaper at $0.270/M, but Claude Opus 4 scores higher on benchmarks (86 vs 62).

Choose DeepSeek Chat V3 for cost-sensitive projects, Claude Opus 4 when performance matters most.

Compare with Other Models