I Spent 159 Credits Trying to Clone Myself on Video: Here's What Broke
Six generations, two models, no usable clip, and four findings that transfer to every video model.
What this covers
Building a talking-head video clone: reference photos, a voice clone, and two different video models. Six generations across an evening.
No usable finished clip. That’s the honest result, and the findings are worth more than a working demo would have been.
What broke and why
The newer model was worse. A controlled A/B (same prompt, same reference, same audio, same length) put Seedance 2.5 against 2.0. 2.5 produced a cleaner image and a worse likeness, and cost 43% more. Newest is not automatically best.
A reference outranks your text. A shirt logo kept rendering despite the prompt saying “no logo” three separate times. It wasn’t invented. It came from the reference photo. You cannot write away what your reference shows.
But you can transform what you can’t negate. Asking the model to simplify branded elements into a universal version removed the logo instantly, where three negations had failed. Describe what you want it to become, never what you want removed.
Camera-lock language freezes the subject. After writing “static,” “locked” and “fixed” five times in one prompt, the head never moved for the entire clip. The model reads camera-lock as subject-lock. State the lock once, then say the opposite loudly: the subject is not locked.
Gaps get invented, not left blank. A tattoo appeared on the back of an arm that no reference photo covered. Plausible-but-wrong is more dangerous than obviously-wrong, because it passes inspection.
And the voice was never the video model’s job. Several generations were spent trying to make a video model preserve a cloned voice. It doesn’t, and it isn’t supposed to. The voice gets lip-synced on afterwards as a separate step.
What it cost
159 credits, about $7.82 at the plan rate, in one evening, for zero usable clips.
Two subscriptions were bought to get there: $59/month for the video platform and $6/month for voice cloning.
The number that matters: the log said 102 credits when the account said 159. Cancelled jobs still bill, and a test run you forget about is real money. Track the balance, not the sum of what you remember generating.