How to Keep Same Face in AI Photos - Face Lock Guide
Learn how to keep the same face in AI photos using Nano Banana face lock prompt and ChatGPT identity preservation. Stop AI from changing your face when changing outfit, background or pose.
Why does AI keep changing the face?
AI changes face when reference is low quality or prompt changes too many things at once. Without face-lock instruction, model re-interprets facial features.
Common causes
- Low quality reference image
- No face-lock instruction in prompt
- Changing pose + outfit + background at once
- Vague identity preservation words
- Extreme camera angle
- Heavy filter or sunglasses in reference
Practical solutions
Use face-lock prompt first
Always start prompt with: 'Use uploaded photo as primary identity reference. Keep same face, facial structure 100% same.'
Use clear front face reference
Use sharp, well-lit selfie without sunglasses, heavy filter or shadow for best Nano Banana face-lock results.
Change one thing at a time
Change only outfit OR background OR pose in one generation for perfect face consistency.
Face lock prompt that works 100%
Use this uploaded photo as primary identity reference. FACE LOCK: Keep same person, same face shape, eyes, nose, lips, skin tone 100% identical. Do not change face. Only change outfit, background and pose as requested. Realistic skin texture.Step-by-step fix
- 1Upload clear front face photo
- 2Add face-lock instruction at start
- 3Request only one change
- 4Review face
- 5Regenerate if face changes
Tips for better results
- Save face-lock line as template
- Use same reference for all edits
- Nano Banana best for face-lock
- Avoid 'beautiful face' words
AI tools you can use
Related AI photo trends
Related AI photo guides
Frequently asked questions
How to keep same face in Nano Banana?
Add face-lock prompt at start: 'Use uploaded photo as primary identity reference, keep same face 100% same' and change only one element at a time.
Why AI changes my face?
Because no face-lock instruction and low quality reference. Use clear selfie + face-lock line.