DeepSeek V4 Flash vs Claude 4.6 Sonnet

Detailed comparison of capabilities, features, and performance.

DeepSeek V4 Flash

DeepSeek V4 Flash

DeepSeek
VS
Claude 4.6 Sonnet

Claude 4.6 Sonnet

Anthropic
Feature DeepSeek V4 Flash Claude 4.6 Sonnet
AI Lab DeepSeek Anthropic
Context Size 1,000,000 tokens 1,000,000 tokens
Max Output Size 131,072 tokens 16,000 tokens
Frontier Model No Yes
Vision Support No Yes
Description Official release of DeepSeek-V4-Flash, superseding the preview version, with substantially enhanced agentic capabilities. 304B parameters with a 1M token context window and a speculative decoding module attached for fast inference. Hosted via Fireworks. The latest Sonnet 4.6 model from Anthropic

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