Veo 3.1 Standard costs $0.40 per second at 1080p, Veo 3.1 Fast costs $0.12, Veo 3.1 Lite costs $0.08, and Gemini Omni Flash costs about $0.10 at 720p, according to Google's Gemini API pricing page on
One attempt at a 30-second video costs $12.00 on Veo 3.1 Standard at 1080p and $2.40 on Lite, but three attempts per usable clip push those to $36.00 and $7.20.
Veo 3.1 Standard is the more economical choice only if the cheaper 1080p tier needs more than 3.33 attempts per usable clip, which is the Standard price divided by the Fast price.