Been testing AI creatives for FB for a while and it was mainly Sora/Kaiber/Runway and off course Claude for angles/copy. What I can see is:
-AI wins in ideation not in raw output. I feed it proven frameworks (AIDA, PAS, 4P) + winning hooks from past campaigns, then let it rewrite angles;
-Runway + Kaiber work best for short UGC-style loops (3–5s motion, front hook first frame);
–Claude or ChatGPT (custom prompt chains) crush it for writing dynamic variations of ad text that bypass “pattern fatigue”;
When tested across 40+ adsets in finance + nutra CTR lifted avg +21% and CPM was steady