Batch generation of ~500 short exercise videos with limited GPU resources

I need to generate around 500 short exercise videos (5–10 seconds each), such as push-ups, squats, and sit-ups. I already have the prompts and JSON input ready. My main issue is finding a cost-effective and automated way to generate them. My local GPU has only 6 GB VRAM, so running modern video-generation models locally is difficult. I’ve tried Diffusers, ComfyUI, and AnimateDiff, but cloud APIs are expensive for generating hundreds of videos. What would be the most practical approach? For example: Renting a cloud GPU and running an open-source model in batches Using image-to-video instead of text-to-video Creating reusable base animations Quantizing or optimizing models for low VRAM Using batch APIs to reduce costs I’m looking for recommendations on the best pipeline and cost/performance trade-offs for generating a large number of similar short videos.