What Changed in GPT Image 2: Japanese Text Rendering, Banners, Avatars, and OpenAI's Prompting Playbook
GPT Image 2 is OpenAI's image model from April 21, 2026. Third-party tests report ~99% character accuracy on non-Latin scripts (Japanese, CJK), 2K-class output (4K experimental), up to 10 images per prompt, 16 reference inputs, and a thinking mode. Covers the 1.5 diff, Nano Banana 2, and prompts.
