Best practices

Follow the guidance below for the best results — your reference image is the foundation of the persona, so a clean, well-framed image gives the most natural output.

Reference image best practices

• Image content:

  • Mouth should be closed, but smiles or subtle expressions are fine

  • The eyes should be looking directly into the camera

  • Keep the expression balanced — the image is used as the base for both the idle loop and speech, so avoid extreme poses

• Format: JPEG, PNG, or WebP

• Lighting: Even lighting with no harsh shadows

• Face Position: The face should be clearly visible and centered

• Background: Simple backgrounds work best

• Accessories: Avoid sunglasses or items that obscure facial features