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.

OpenAI has introduced new tools and features to its Responses API, enhancing capabilities for developers building agentic applications. Key updates include support for remote MCP servers, enhanced image generation, Code Interpreter integration, and improved reliability and privacy features for enterprises.

OpenAI has introduced the `gpt-image-1` model for image generation via its API, allowing developers to integrate high-quality image creation into their products. The model supports diverse styles and applications, with notable collaborations from companies like Adobe, Canva, and HubSpot to enhance creative and marketing processes.

OpenAI is experimenting with visible and invisible watermarks for images generated by its ChatGPT-4o model to enhance content traceability and compliance. The visible watermark, labeled “ImageGen,” is being tested for free-tier users while paid users will receive images without watermarks. This move aligns with broader industry efforts to improve attribution for AI-generated content.

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.