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Claude 3.5 Sonnet vs DeepSeek V4-Flash

Claude 3.5 SonnetDeepSeek V4-Flash
ProviderAnthropicDeepSeek
Context Window200,0001,048,576
Release Date2024-06-20
Input Price$3.00/ 1M tokens$0.14/ 1M tokens
Output Price$15.00/ 1M tokens$0.28/ 1M tokens
Best forcoding · writing · chatbot · analysisgeneral chat · coding · cost-sensitive apps · long context

Capabilities

Claude 3.5 SonnetDeepSeek V4-Flash
Vision
Reasoning
Coding
Audio
Tools
Long Context

Ranking Comparison

Claude 3.5 SonnetDeepSeek V4-Flash
Overall47.141.4
Benchmark00
Capability85.757.1
Price Efficiency100100
Context100100

Overall = Benchmark 50% + Capability 20% + Price Efficiency 20% + Context 10%.

Benchmark Comparison

Claude 3.5 SonnetDeepSeek V4-Flash
Coding
Reasoning
Math
Vision

Price History

Claude 3.5 Sonnet

DateInputOutput
2026-08-05$3.00$15.00

/ 1M tokens

DeepSeek V4-Flash

DateInputOutput
2026-08-05$0.14$0.28

/ 1M tokens

Claude 3.5 Sonnet

Anthropic's flagship model known for strong coding and nuanced writing.

DeepSeek V4-Flash

DeepSeek's fast and ultra-cheap general model with a 1M context window.