Runway and HeyGen end up on the same lists and answer almost entirely different briefs. If you pick by score you will sometimes pick the wrong one, because the higher score belongs to the tool that may have nothing to do with your job.
Runway — footage that did not exist
Runway scores 8.8 on our 361 score and is aimed at creative work: text-to-video, generative editing, visual effects, fast iteration on shots. The output is footage.
It suits creators and teams exploring what a scene could look like, producing stylised inserts, or doing effects work that would previously have required a post house. The strength is range and the willingness to produce something you did not fully specify.
It is not the tool for a predictable talking-head video that must say exactly the approved script, in eight languages, updated quarterly.
HeyGen — a presenter at scale
HeyGen scores 8.2 and solves a narrower, more operational problem: avatar-led video with multilingual dubbing and localisation. The output is a person delivering your script.
This is training content, product walkthroughs, internal comms and market localisation. The value is not artistry; it is that producing the same message in twelve languages stops requiring twelve shoots.
The uncanny-valley objection is real and depends heavily on the audience. Internal training tolerates it. A brand hero film generally does not.
The deciding question
Is the video showing something, or is it telling someone something?
Showing — Runway. Telling, repeatedly, in multiple languages, with updates — HeyGen. Confusing these produces either a beautiful video that fails to communicate the policy change, or a serviceable avatar reading a script that needed real footage.
Cost behaves differently too
Generative video is iteration-heavy: you will produce many takes to get one usable shot, and the cost scales with how picky you are. Budget for exploration.
Avatar video is closer to a production line. The first video costs the most effort — script, avatar choice, brand setup — and the hundredth costs very little. If your work looks like a catalogue, that curve matters more than per-clip quality.
What both still require
A script and an edit. Generative tools compress production, not thinking. The most common disappointment with both is a team expecting the tool to supply structure that nobody wrote.
For HeyGen specifically, localisation quality is bounded by translation quality. A dubbed video inherits every awkwardness in the translated script, delivered confidently by a presenter who cannot tell it reads badly.