I am a subscriber to the Google AI Ultra plan, which, according to the stated capabilities, should allow for video generation up to 60 seconds in length. However, when attempting to generate videos using Veo 3, the output consistently stops after approximately 8 seconds, regardless of the complexity or length of the provided prompt.

​https://support.google.com/gemini/thread/346858612/veo-3-video-generation-limited-to-8-seconds-despite-google-ai-ultra-subscription?hl=en