DeepSeek V4 Pro vs Claude Sonnet 4.6: side-by-side summary

DeepSeek V4 Pro and Claude Sonnet 4.6 are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

DeepSeek V4 Pro, from DeepSeek, has a 1,048,576-token context window and is priced at $0.348/M tokens input, $0.696/M tokens output on OpenRouter.

Claude Sonnet 4.6, from Anthropic, has a 1,000,000-token context window and is priced at $3/M tokens input, $15/M tokens output on OpenRouter.

Context window

• DeepSeek V4 Pro: 1,048,576 tokens
• Claude Sonnet 4.6: 1,000,000 tokens

Price

• DeepSeek V4 Pro: $0.348/M tokens input, $0.696/M tokens output
• Claude Sonnet 4.6: $3/M tokens input, $15/M tokens output

Provided by

• DeepSeek V4 Pro: DeepSeek
• Claude Sonnet 4.6: Anthropic

• DeepSeek V4 Pro model details, providers and pricing
• Claude Sonnet 4.6 model details, providers and pricing