Head-to-Head API Cost Benchmark

Claude 3.7 Sonnet vs DeepSeek-V3 (Chat): API Price & Latency Comparison

On a standard B2B production workload (5,000 req/day), DeepSeek-V3 (Chat) is 91.5% cheaper ($129.75/mo vs $1518.75/mo), while Claude 3.7 Sonnet leads in token generation speed (75 tok/s).

Side-by-Side Specification & Billing Matrix

Metric Claude 3.7 Sonnet (Anthropic) DeepSeek-V3 (Chat) (DeepSeek API) Advantage
Standard Input / 1M Tokens $3.000 $0.270 DeepSeek-V3 (Chat)
Cached Input / 1M Tokens $0.300 $0.070 DeepSeek-V3 (Chat)
Output Generation / 1M Tokens $15.00 $1.10 DeepSeek-V3 (Chat)
Intelligence / Benchmark Quality 1318 LMSYS Elo 1282 LMSYS Elo Claude 3.7 Sonnet
Monthly Spend (5k req/day, 50% cache) $1518.75 / mo $129.75 / mo DeepSeek-V3 (Chat) (-91.5%)
Context Window 200,000 tokens 64,000 tokens Claude 3.7 Sonnet
Output Speed (Throughput) 75 tokens/sec 60 tokens/sec Claude 3.7 Sonnet
Batch API Discount -50% (Anthropic) -50% (DeepSeek API) Anthropic
Primary Workload Fit Autonomous coding agents, complex refactoring, nuanced B2B content generation High-intelligence general tasks & translation where prompt caching saves 75%+ Workload Dependent
Deploy / Console Access Try Claude 3.7 Sonnet → Try DeepSeek-V3 (Chat) → Open Full Simulator