What models allow today
Most AI video generators produce clips ranging from a few seconds to around fifteen seconds per generation. A handful of recent models allow going noticeably further in a single pass, but quality and motion consistency generally degrade as the requested duration increases.
How to build a longer video
A video that's a minute or longer is almost always built by chaining several short clips together in editing, rather than in a single continuous generation. This approach also gives far more control: each clip can be regenerated individually if it doesn't work, without starting over on the whole video. For the complete method, see our guide how to make an AI video, from script to export.
Frequently asked questions
Generally yes, most engines charge based on the duration generated. Producing several short clips instead of aiming for one long clip can also work out cheaper if the first attempts need adjustments.
The longer the duration requested in a single generation, the higher the risk of drift — motion degrading, subject consistency getting lost. Chaining several short clips together in editing gives you far more control over the final result.
Go further
- Creating a video with AI: tools and method
From idea to export: generate a clip with AI, edit it and add subtitles, with a clear method and the right tool at each step.
- How to translate a video into another language with an AI voice?
The complete method for adapting a video into several languages: extracting the script, translating it, generating the voice, and re-syncing lip movement if needed.
- AI voice or human voiceover: what's the difference for a professional video?
Where AI wins by a wide margin (cost, turnaround, revisions), where human voiceover keeps a real edge, and how to decide based on your project rather than on principle.
- Free or paid AI video generator: which one should you start with?
What free plans actually limit (watermark, duration, quota), and at what point a subscription becomes more cost-effective than stacking free accounts.
See exactly what ToolAcces includes — credited API engines and mutualized access, in a single subscription starting at €39.99/month, no commitment. View pricing.