Synthesia
Free / Starter ~$29 per mo
Runway
Free / Standard from ~$15 per mo
Synthesia turns scripts into presenter-led videos with realistic AI avatars, ideal for training and corporate content. Runway generates cinematic, imaginative video clips and visual effects for creative work. They solve different problems: avatar explainer videos (Synthesia) versus generative film and effects (Runway).
Pick Synthesia if you make training, explainer, or corporate videos and want to turn scripts into presenter-led videos at scale.
Pick Runway if you want to generate cinematic, imaginative video clips and visual effects for creative or film work.
Synthesia and Runway are both called AI video tools, but they make completely different kinds of video. Synthesia is an avatar platform: you type a script, pick a realistic AI presenter and language, and it produces a talking-head video, which is ideal for training, onboarding, explainers, and corporate communication at scale. Runway is generative: it creates cinematic, imaginative video clips from text or images, plus advanced editing and visual-effects tools, aimed at filmmakers, artists, and creative teams.
On price, Synthesia has a limited free plan and a Starter plan around $29 a month, while Runway has a free tier and paid plans starting around $15 a month, both with usage limits (Synthesia by video minutes, Runway by credits). The choice is about output: presenter-led explainer videos (Synthesia) versus generative, cinematic footage (Runway).
We compare output type, realism, creative control, price, and use cases.
| Quick facts | Synthesia | Runway |
|---|---|---|
| Output type | AI avatar / presenter videos | Generative cinematic clips |
| Starting paid price | Starter ~$29/mo | From ~$15/mo |
| Best content | Training / explainers | Creative / film |
| Usage limited by | Video minutes | Credits |
| Best for | Corporate / e-learning | Creators / filmmakers |
Each row reflects the feature on each product's current public release.
| Feature | S Synthesia | R Runway |
|---|---|---|
| Script-to-avatar video | Best-in-class | No |
| Generative video clips | No | Best-in-class |
| Realistic AI presenters | Yes | No |
| Visual effects / editing | Limited | Strong |
| Multiple languages / voices | Many | N/A |
| Free tier | Yes | Yes |
| Corporate / training focus | Best-in-class | Limited |
| Creative / cinematic focus | Limited | Best-in-class |
Pricing and features change often. Always verify the current details on each product's official site. Last reviewed 2026-06-22.
Things neither product's marketing page leads with.
They are not really substitutes: Synthesia makes talking-head explainer videos, Runway makes generative cinematic footage.
Synthesia is the easier path for non-creative corporate video; Runway demands more creative direction and credits.
If you need both a presenter video and creative b-roll, you may end up using both tools.
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