The lesson
Announce a new feature with three short imperative promises in the post and show the product menu in the video preview.
The post reads "Introducing Notion AI" and then "Write faster. Think bigger. Augment your creativity." The 00:57 video shows a dark Notion page titled "Introducing Notion AI" with a "Draft with AI assist" list: Empty page, Blog post, Brainstorm ideas, Pros and cons list.
Skip "Augment your creativity", which is vague and could sit on any AI launch. Keep the habit of putting concrete starter tasks on screen in the thumbnail.