Your face, locked in — every thumbnail, every time
Create a Person profile once with 1–5 photos and FatThumb keeps your exact likeness consistent across every AI-generated thumbnail — no drift, no random faces.
How it works
Three steps from zero to upload-ready.
Upload 1–5 face photos
Create a Person profile by uploading clear, front-facing photos. FatThumb validates each one for face visibility so your reference set is solid.
Select your Person at generation time
When you write a thumbnail prompt, choose your Person profile. The AI weights your face reference above the style signal so your likeness comes through.
Receive 1–4 face-accurate variations
Every variation in the batch uses the same face reference. Compare them side by side and pick the winner — your face is the constant, the composition varies.
Features
Everything you need for the click.
One profile, unlimited thumbnails
Upload photos once and reuse your Person profile across every prompt. No re-uploading, no repeat setup — your face reference persists.
3-check validation at upload
FatThumb checks each photo for a forward-facing angle, a single visible face, and open eyes. Low-quality reference photos are caught before they dilute your profile.
Multiple profiles per workspace
Run different Person profiles per channel or client. Agencies can maintain one profile per creator and keep every account's face library separate.
Face signal prioritised above style
The generation engine places your Person reference images in the highest-weight position so the face lock survives even heavy style influences from Inspiration references.
Consistent across all 4 variations
Generate up to four thumbnail variations in one batch. Your face is the same in every variation — you choose composition, not which frame happened to get the right face.
Your IP, your face, your data
Person photos are stored in your workspace only. They are used as reference images at generation time. You control what gets uploaded and can delete a profile at any time.
FAQ
Questions & answers
How does FatThumb keep my face consistent?
You create a Person profile by uploading 1–5 photos of your face. At generation time your reference photos are attached as the highest-priority conditioning signal so the AI model weights them above the creative style, keeping your likeness stable across all variations.
How many photos should I upload to a Person profile?
Two to five photos from different angles and lighting conditions give the best results. FatThumb validates each photo for a clear, forward-facing, single-face view before accepting it into the profile.
Can I have multiple Person profiles?
Yes. You can create one profile per person within a workspace. Agencies often maintain one profile per creator client so each account's face reference stays isolated.
Does face consistency work with Inspiration references?
Yes. When you attach an Inspiration thumbnail, the AI uses its style and composition while keeping your face reference in the locked position. The style reference influences the creative direction; your Person profile controls the face.
What makes a good profile photo?
Clear front-facing shots with both eyes visible and good lighting work best. FatThumb's 3-check validation catches photos that are too angled, contain multiple faces, or have closed eyes before they enter your profile.
What happens if I generate without a Person profile?
You can still generate thumbnails without a Person profile. The AI will create a face based on your prompt description alone. Person profiles are optional but strongly recommended for channel-brand consistency.
Stop guessing which frame got your face right
Generate your first 5 thumbnails free — no card, no designer, your face consistent from the first run.