Imagen 4 Fast

Google's mid-tier flagship in the Imagen series. Delivers stronger prompt adherence and improved text rendering over Imagen 3, with the photorealistic skin tones and natural lighting Imagen is known for. Sits below Imagen 4 Ultra on overall quality and above Imagen 3 on instruction-following — a pragmatic default for product, ecommerce, and editorial photography.

Google's premium Imagen tier, built for magazine-cover-quality photorealism. Hand-tuned for fine-grained detail in faces, fabrics, and natural materials with faithful prompt adherence and improved typography. Sits at the top of the Google image lineup alongside Nano Banana Pro — pick this when you want documentary-style realism over Gemini's broader compositional flexibility.

Black Forest Labs' fastest, lowest-cost Flux variant. Built for rapid prototyping, moodboards, and high-volume batch generation where speed and credit cost matter more than raw fidelity. Open-weight and well-supported in the community, with extensive prompt-pattern documentation accumulated since the original Flux release.

A fast 6B-parameter text-to-image model from the Z-Image lineup with surprisingly strong photorealism for its size. Built for high-volume iteration where credit cost and speed matter — moodboards, social variants, exploration before stepping up to a flagship. Open-weight and competitive at this budget tier.