RenderDay is a cloud rendering service for Blender projects that uses AI GPU providers to offer cost-effective rendering solutions. Users upload their .blend or .zip files containing Blender projects, configure render settings (including Blender version, render engine, resolution, samples, and output format), and receive precise pricing based on project complexity. The service supports both single frames and animations, offers choice between Cycles and EEVEE render engines, and provides real-time progress tracking with preview frames. Once rendering completes, users can download their completed renders, which remain available for 30 days. RenderDay's dynamic pricing model leverages updated GPU rates from AI providers to deliver competitive pricing compared to traditional render farms.