ChatGPT Sites hit 5 million user-created sites in three months since launch. The product lets people build and deploy interactive web apps without coding. OpenAI just rolled out a batch of updates that address the actual friction points users were hitting. The new features focus on collaboration and speed. Teams can now edit sites together and publish from a shared workspace. There's a private sharing option so you can invite specific people without making a site public. Deployment got faster—they claim you can go from prompt to live in half the time. The database inspection feature lets you ask ChatGPT to examine your site's data, and editors can view it too. Custom domains are now supported. The 2.5 million views on this announcement suggest real interest in the product category. Whether these updates actually stick depends on whether the speed improvements and collaboration tools remove enough barriers to make building web apps genuinely faster than traditional methods. The private sharing option in particular addresses a real gap—public-by-default creates friction for internal tools and experiments.