DeepSeek V4 Flash 0731 vs Mercury 2.5 Preview: side-by-side summary

DeepSeek V4 Flash 0731 and Mercury 2.5 Preview are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

DeepSeek V4 Flash 0731, from DeepSeek, has a 1,310,720-token context window and is priced at $0.04998/M tokens input, $0.09996/M tokens output on OpenRouter.

Mercury 2.5 Preview, from inception, has a 260,000-token context window and is priced at $0.04/M tokens input, $0.15/M tokens output on OpenRouter.

Context window

• DeepSeek V4 Flash 0731: 1,310,720 tokens
• Mercury 2.5 Preview: 260,000 tokens

Price

• DeepSeek V4 Flash 0731: $0.04998/M tokens input, $0.09996/M tokens output
• Mercury 2.5 Preview: $0.04/M tokens input, $0.15/M tokens output

Provided by

• DeepSeek V4 Flash 0731: DeepSeek
• Mercury 2.5 Preview: inception

• DeepSeek V4 Flash 0731 model details, providers and pricing
• Mercury 2.5 Preview model details, providers and pricing