LLMversus

Claude 3.5 Sonnet vs DeepSeek V3: Pricing, Benchmarks & Verdict (2026)

Pricing verified Aug 10, 2026By LLMversusUpdated August 11, 2026View methodology

⚡ Quick Answer

Compare Claude 3.5 Sonnet and DeepSeek V3 across pricing, benchmarks, and capabilities.

Updated: August 10, 2026 · ✓ Pricing verified

Side-by-Side Comparison

FeatureClaude 3.5 SonnetDeepSeek V3
ProviderAnthropicDeepSeek
Input Price / 1M tokens$3.00$0.269
Output Price / 1M tokens$15.00$0.400
Context Window
200K
128K
Max Output Tokens
8,192
8,192
Arena ELO
1,270
1,359
Coding ELO
1,300
1,359
TTFT (ms)
150
220
Tokens/sec
100
85
MultimodalYesNo
JSON ModeYesYes
Function CallingYesYes
VisionNoNo
When to Use Claude 3.5 Sonnet

Claude 3.5 Sonnet excels at coding, general-purpose, multimodal tasks.

Strengths:

  • Best coding
  • Large context
  • Strong reasoning

Best for:

codinggeneral-purposemultimodal
When to Use DeepSeek V3

DeepSeek V3 excels at coding, general-purpose, cost-sensitive, open-source tasks.

Strengths:

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

Best for:

codinggeneral-purposecost-sensitiveopen-source

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