gpt-image-2 API: ship 2K AI images in Next.js for $0.21 (2026)

OpenAI released the gpt-image-2 model on April 21, 2026, which renders up to 2,000 pixels and supports seven aspect ratios with up to 8 coherent images per call. This new model features a thinking mode for layout and typography, dramatically improving text and graphic rendering.