DeepSeek V4 Pro costs $1.74/1M input tokens and $3.48/1M output tokens, while V4 Flash costs $0.14/1M and $0.28/1M; both models are the cheapest in their class (Simon Willison/Simon Willison's Weblog)

Simon Willison / Simon Willison's Weblog: DeepSeek V4 Pro costs $1.74/1M input tokens and $3.48/1M output tokens, while V4 Flash costs $0.14/1M and $0.28/1M; both models are the cheapest in their class — Chinese AI lab DeepSeek's last model release was V3.2 (and V3.2 Speciale) last December. They just dropped the first of their …