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Claude Sonnet 4 vs DeepSeek V3: Pricing, Benchmarks & Verdict (2026)

Pricing verified Apr 20, 2026By LLMversusUpdated June 14, 2026View methodology

⚡ Quick Answer

DeepSeek V3 is significantly cheaper at $0.27/$1.10 per million tokens vs $3.00/$15.00. Claude Sonnet 4 offers a larger 200K context window vs 128K.

Updated: April 20, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureClaude Sonnet 4DeepSeek V3
ProviderAnthropicDeepSeek
Input Price / 1M tokens$3.00$0.259
Output Price / 1M tokens$15.00$0.420
Context Window
200K
128K
Max Output Tokens
64,000
8,192
Arena ELO
1,280
1,280
Coding ELO
1,305
1,300
TTFT (ms)
320
220
Tokens/sec
78
85
MultimodalYesNo
JSON ModeYesYes
Function CallingYesYes
VisionYesNo
When to Use Claude Sonnet 4

Choose Claude Sonnet 4 when you need: best-in-class coding performance, 200k context window, excellent instruction following. It excels at coding, analysis, long-context, agents tasks. Its 200K context window is larger, making it better for long-document processing.

Strengths:

  • Best-in-class coding performance
  • 200K context window
  • Excellent instruction following

Best for:

codinganalysislong-contextagents
When to Use DeepSeek V3

Choose DeepSeek V3 when you need: excellent coding performance for its price, open-source and self-hostable, very competitive benchmarks, extremely affordable. It excels at coding, general-purpose, cost-sensitive, open-source tasks. It is also the more cost-effective option between the two.

Strengths:

  • Excellent coding performance for its price
  • Open-source and self-hostable
  • Very competitive benchmarks
  • Extremely affordable

Best for:

codinggeneral-purposecost-sensitiveopen-source

Frequently Asked Questions

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