What is the difference between PhotoMaker and InstantID?

PhotoMaker stacks several reference images into a single identity embedding, so it benefits from 3-4 varied photos. InstantID locks identity from one image using a face encoder plus a ControlNet-style adapter, so it works well from a single clear portrait.

How many reference images should I use for PhotoMaker?

Three to four images of the same person from slightly different angles and lighting give the strongest, most flexible identity. One image works but tends to overfit to that exact pose and expression.

Why does my generated face look stiff or pasted on?

Identity strength is too high. Lower the identity scale or PhotoMaker style strength so the model can blend the face into the scene lighting and pose instead of stamping the reference directly.

Can I combine both tools?

Yes. A common ComfyUI pattern is InstantID for hard identity locking plus a PhotoMaker pass or IP-Adapter for style and detail. Keep total identity influence moderate so the two do not fight each other.

PhotoMaker & InstantID Guide

PhotoMaker and InstantID

PhotoMaker and InstantID both solve the same problem — keeping the same face across many AI portraits — but they take different routes. PhotoMaker fuses multiple reference photos into one identity embedding that conditions generation. InstantID uses a face encoder plus an adapter to lock identity from a single image. This guide picks sensible reference counts and strength values based on how faithful you want the result to be.

How it works

The two main dials are identity preservation and style strength. High identity preservation forces the output to match the reference face closely, which is great for “the same person” consistency but can look pasted-on if pushed too far. Lower preservation lets the model restyle the face into a new art style, age or mood. The tool maps your chosen balance to the specific parameters each tool exposes — PhotoMaker’s style-strength percentage and trigger word placement, or InstantID’s identity and ControlNet conditioning scales.

Tips for faithful portraits

Feed PhotoMaker variety. Three to four photos from different angles beat one perfect headshot — the embedding generalises instead of overfitting.
Keep InstantID references sharp and frontal. The face encoder needs a clear, well-lit, mostly frontal face to extract a strong identity vector.
Don’t max out strength. Identity at 100% often looks rigid. Backing off 10-20% lets lighting and pose integrate naturally.
Put the PhotoMaker trigger word right before the class noun, e.g. a photo of a img man — placement matters for how the embedding binds.