OpenAI is testing a watermark feature for its Image Generation model within the ChatGPT 4o framework, primarily due to the popularity of users generating Studio Ghibli-style art. The watermark will be applied to images created by free users, while ChatGPT Plus subscribers will have the option to save images without the watermark. There are ongoing developments for an ImageGen API, allowing developers to create their own applications.

OpenAI reported that ChatGPT users have generated over 700 million images within a week, highlighting the rapid growth and popularity of its image generation capabilities. The surge in usage reflects a significant increase in user engagement and interest in AI-generated content.

OpenAI is expanding its image-generating feature, gpt-image-1, to other developers and applications, including Adobe's Firefly and tools like Figma and Wix. This follows a surge in usage where over 130 million users created 700 million images in just the first week. Additionally, Microsoft will integrate OpenAI's image generation into its Microsoft 365 Copilot app, enhancing competition with Google in the generative AI market.

A new model labeled "GPT-5 Mini Scout" briefly appeared in ChatGPT's model selector, sparking speculation about its connection to a new Company Knowledge feature for enterprise users. An update in OpenAI’s JavaScript library hinted at the model being named "GPT-5.1 Mini," suggesting significant advancements in image generation capabilities. The potential rollout for this model is anticipated in November, possibly in response to competitors like Google's Gemini 3.