Gen-3 Alpha

Overview

Gen-3 Alpha is a previous-generation Runway video model designed for text-to-video and image-to-video generation. It remains relevant for creators using older Runway workflows and comparisons.

How Gen-3 Alpha works

Gen-3 Alpha is Runway's earlier flagship model. It turns a text prompt or a starting image into a short cinematic clip and is billed through Runway credits rather than a fixed per-seat price.

It is no longer Runway's newest generation, but many existing prompts, templates and tutorials were written for it, so it still shows up in older projects and in side-by-side comparisons with Gen-4 and Gen-4.5.

Getting started with Gen-3 Alpha

1. Open Runway and check which models your plan currently exposes, since availability of older models can change.
2. Start with an image-to-video run if you want tighter control over composition, or a text prompt for open exploration.
3. Keep prompts concrete: subject, action, camera move and mood.
4. Run the same prompt on a newer Runway model to see whether the upgrade is worth the extra credits for your use case.

Is Gen-3 Alpha the right choice?

Pick Gen-3 Alpha only if you are maintaining an existing workflow or benchmarking models. For new work, Runway's newer Gen-4 family is the more natural starting point.

Who should use Gen-3 Alpha

Creators and teams maintaining existing Runway projects or comparing previous-generation generative video models.

Try Gen-3 Alpha

Ready to try it? Visit the Gen-3 Alpha official website to review current access, usage limits and pricing, then run a few test prompts of your own before committing to a plan.