What is GPT Image 1.5?
GPT Image 1.5 is the in-house image generation model in the gpt-image-1 family available on Oakgen.ai. Instead of being a standalone diffusion model, it's tuned as part of a broader multimodal stack, which is why it tends to follow long, nuanced instructions more literally than classic diffusion pipelines. It's particularly strong at rendering readable text inside images, producing clean product and UI mockups, and handling iterative edits described in plain English. On Oakgen.ai, GPT Image 1.5 runs with no watermark and commercial-use rights for eligible outputs on every paid plan, and outputs flow straight into Oakgen's editor, upscaler, and video pipeline.