Runway vs Synthesia at a glance
| Feature | Runway | Synthesia |
|---|---|---|
| Best for | Generative cinematic AI footage | Avatar-led training & corporate video |
| Starting price | ★ Free / $15/mo | $18/mo |
| Free plan | ★ Yes, limited credits | No, demo only |
| Generative video | ★ Core strength, text/image to video | Not the focus |
| Avatars & voices | No talking avatars | ★ 230+ avatars, 140+ languages |
| Output quality | Cinematic, creative, less predictable | Consistent, business-ready |
| Ease of use | Creative tooling, more to learn | ★ Template-driven, beginner-friendly |
| Best use case | Film, ads, art, b-roll | Training, onboarding, explainers |
Winner by category
Creates original cinematic footage from text or images.
Talking-avatar presenters in 140+ languages, built for training.
A free tier plus a $15/mo paid plan undercuts Synthesia.
Template-driven workflow with little to learn.
Reasons to choose Runway
Runway is a generative video tool, and that’s a fundamentally different proposition. You give it a text prompt or a still image and it produces original moving footage, cinematic shots, abstract visuals, b-roll, effects, that didn’t exist before. For filmmakers, ad creatives, and artists who want to generate imagery rather than narrate a script, nothing in Synthesia comes close.
It’s also the cheaper way in. Runway offers a free tier with limited credits so you can experiment before paying, and its paid plan starts at just $15/month. That low, low-commitment entry suits creators who want to play with generative video without a corporate budget.
The trade-off is that generative output is more creative but less predictable, you iterate on prompts to get the shot you want. That’s the nature of the medium, and it’s exactly what creative users are after. For art, ads, music videos, and original footage, Runway is the tool built for that work.
Reasons to choose Synthesia
Synthesia solves the opposite problem: a presenter reading your script. Pick from 230+ stock avatars, paste your text, and you get a talking-head video in 140+ languages. For onboarding, training, and corporate explainers, that spokesperson format is precisely what’s needed, and it’s something Runway simply doesn’t do.
The output is consistent and business-ready. Where Runway’s generative footage varies from run to run, Synthesia delivers the same dependable, professional delivery every time. When a video is going in front of an entire workforce or into a compliance course, that predictability is a feature, not a limitation.
It’s also far more beginner-friendly. The template-driven editor means anyone can produce a watchable video without learning prompt craft or a creative timeline. For L&D and comms teams who need standardized video at scale and have no time to wrangle prompts, Synthesia is the more practical choice.
Pricing compared
Runway starts at free, with limited credits, then moves to a paid plan from $15/month as you generate more. The free tier plus low entry price make it the cheaper, lower-risk option for experimentation.
Synthesia starts at $18/month with no permanent free tier, only a demo. That entry price is reasonable for a business tool, but you can’t trial it for free the way you can with Runway.
So Runway wins on both barrier to entry and paid price. But the two aren’t really competing on cost, they’re built for different jobs. The value question isn’t which is cheaper, it’s whether you need generative footage or a talking avatar.
The verdict
Choose Runway if you want to generate original, cinematic AI footage from text or images, for film, ads, art, or b-roll, and you like the idea of a free tier and a low monthly price. Choose Synthesia if you need avatar-led training, onboarding, or explainer videos that are consistent, multilingual, and easy for non-editors to make. Creative generators should lean Runway; training teams will get far more from Synthesia.
See our Runway review and our Synthesia review for the deeper look, and our roundup of the best AI video generators for the wider field.
Pricing note: AI video pricing and credits change often, verify current plans on each tool’s site before buying.
Frequently asked questions
Is Runway better than Synthesia?
They do different things. Runway is better for generating original, cinematic AI footage from text or images. Synthesia is better for avatar-led training and corporate video. The right tool depends on whether you want creative generation or a talking presenter.
Which is cheaper, Runway or Synthesia?
Runway is cheaper, with a free tier and a paid plan from $15/month. Synthesia starts at $18/month with no permanent free plan, only a demo.
Does Synthesia generate video like Runway?
No. Synthesia builds videos around talking AI avatars reading a script. Runway generates original footage and scenes from text or image prompts, which is a different, more creative use case.
Which is better for marketing video?
It depends on the style. For cinematic b-roll, ads, and creative visuals, Runway is stronger. For spokesperson-style explainers and training, Synthesia's avatars are the better fit.