Create a Chirp by hand
Start a new Chirp, choose its name and web address, and save it as a draft only you can see.
When you're done, you'll have a new Chirp saved as a draft, ready to fill in and test.
Who can do this: the account owner on any plan, and team members who can edit Chirps.
What you'll need: a plan. Your OpenRouter key isn't needed to save a Chirp, only to try it.
Start the Chirp
-
In the menu, click Chirps, then Create Chirp. The editor opens with Not saved yet at the top. Nothing exists until you save.
-
Type a Name (1). It's the only thing you must fill in, up to 80 characters. (If the name has fewer than three letters or numbers, such as "AI", type a Web address yourself too.)
A new Chirp needs a name (1); Save (2) creates it as a draft. -
Fill in as much of the rest as you like now. Each section is explained in its own guide: instructions, conversation starters, the picture and description, and the AI model.
-
Click Save (2), or press Ctrl+S (Cmd+S on a Mac). The top of the page now says All changes saved, and the Chirp appears on your Chirps page as a Draft.
Moving a Custom GPT? Paste its instructions into section 2. Instructions. The editor also offers a shortcut at the top: import a Custom GPT instead of copying it by hand.
Web address
Every Chirp has its own link: chirpbuilder.com/c/ followed by its Web address. The address fills itself in from the name as you type; change it if you like.
- Use 3 to 60 lowercase letters, numbers and dashes, starting and ending with a letter or number.
- Under the box you'll see Available or Already taken.
- Once the Chirp has been published, the address can't change, because people may already have the link.
If it doesn't work
- "Give your Chirp a name first." The Name box is empty.
- "That web address is already taken." Another Chirp uses it. Change a word or add a number.
- "Choose a Chirp Builder plan to create or change Chirps." Your account needs an active plan.
- You leave the page with unsaved changes. Chirp Builder asks first: Stay, Leave without saving or Save and leave.
Checked against the app on October 26, 2026.