The new multimodal AI model designed to deliver faster performance at a lower cost. During off-peak hours, its API costs $0.15 per million input tokens and $0.60 per million output tokens, compared with $0.20 and $1.20 for OpenAI’s GPT-5.6 Luna. DeepSeek says V4.1 Flash even outperforms its V4 Pro model on performance, speed and cost. Starting September 14, requests to V4 Pro will temporarily be routed to the new model and billed at Flash rates until V4.1 Pro is released.
