GPT Image 1.5 is OpenAI's flagship image generation and editing model, released in December 2025. Built natively into the GPT-5 architecture using an autoregressive approach, it generates images up to four times faster than its predecessor while delivering more precise instruction following and surgical image editing — modifying specific regions while preserving facial likeness, logos, lighting, and composition. The model also produces highly legible text within images across multiple languages, making it particularly effective for design, marketing, and content creation workflows.