Brand Brain
Captions that sound like you wrote them.
Tell it how your brand sounds once. It writes every caption in that voice, adjusts it for each platform, and gets closer each time you mark one that sounds right or say what doesn’t.
Free plan · no card · 800 tokens, about 30 images.
One post, three captions
Tony’s BBQ’s brisket post went to three platforms, each with a caption written for that platform.

Instagram“That bark deserves a close-up. Brisket’s back: slow-smoked, sliced by hand.” 
TikTok“Brisket’s back. 8 seconds behind the pit. #brisket #bbq” 
Facebook“Lunch plans? We’ve got a suggestion. Our brisket is back, with pepper bark and the pickles that belong beside it.”
Tony’s BBQ is an illustrative demo brand.
How it learns your voice
Describe it once
In Brand Brain, answer “How does your brand sound?”, set how you use emoji and choose the language you post in.
Keep the good ones
Thumbs up a caption that sounds right and it is saved as a voice example. It keeps up to 16.
Say what’s off
Thumbs down, pick Caption, choose a reason such as too salesy, too long or wrong tone, and add a sentence. It becomes a rule for the whole brand or one angle.
One caption per platform
Each platform gets its own caption, ending with the tags and sign-off you set for that platform.
Good to know
Rewrites are free
On any draft, Rewrite with AI costs no tokens. You can also edit the caption yourself before you approve.
Rules guide the writing
Your rules shape every caption it writes, but it is still writing, not filling a template. Read each caption before you approve it.
Your do’s and don’ts, editable
Brand Brain keeps your caption and media rules as a list you can read, edit and delete from.
Questions, answered straight
Will every caption sound the same?
No. Each draft starts from a different angle and picture. Your voice examples set the tone; they are not a template it repeats.
Can it write in another language?
Yes. Set the post language in Brand Brain and captions are written in it.
Does it add hashtags?
Set the tags and caption ending each platform should get, and they are added to that platform’s caption.
See it with your own photos.
Free includes 800 starter tokens, one brand or location and one connected platform, with no card. Autopilot Solo is $119 a month and runs the Draft Engine on a schedule. You approve every post either way.