Really interesting new blog post from @openai for several reasons: 1) Shows an example of building with WebMCP, meant for when you want agents and and humans to collaborate on using a UI (like co-editing notebook cells). It's different than MCPs or APIs in that its exposed di…↗

Notebook is built for thinking, not toggling. While others add more modes, Notebook keeps everything in a single, unified prompt bar and just does the things you want. Ultra and Pro subscribers can jump in now, rolling out to everyone next.↗