Compare the best AI video generators and editing tools.
AI video splits into two different jobs that get lumped together under one label. Talking-avatar tools like HeyGen and Synthesia exist to turn a script into a presenter on screen, mostly for training and marketing videos. Generative tools like Runway, Pika, Luma, and Sora produce short original clips from a text prompt or a still image. We review each category on its own terms instead of scoring them against the same checklist.
What we look at:
A five-second demo reel on a landing page rarely reflects what a full production run looks like, so we generate our own clips for every review instead of relying on the vendor's showcase footage.
HeyGen and Synthesia lead the market for corporate training, marketing, and multilingual talking avatar generation.
Most text-to-video and image-to-video models cap a single generation between 5 and 20 seconds, with some premium tiers extending that further. Longer videos are typically built by generating multiple clips and stitching them together in an editor, not by one continuous render.
Paid plans from Runway, Pika, and Luma generally include commercial usage rights, but free tiers often restrict output to personal or non-commercial use. Always check the specific plan's terms before using generated footage in a paid campaign or client project.
Pricing is usually credit-based rather than a flat per-minute rate, and costs scale with resolution and clip length. A minute of finished, edited footage typically requires several generation attempts to get a usable take, which is the real cost driver most pricing pages don't make obvious upfront.
