AI Tool Comparison

Runway vs Synthesia

Side-by-side comparison of pricing, features, and use cases to help you decide which fits your AI stack.

Direct answer

Pick Runway

Choose Runway if you value text-to-video and image-to-video generation and ai video editing tools (motion brush, green screen).

Pick Synthesia

Choose Synthesia if you value script-to-video with stock avatars and custom avatar options.

Side by side

Runway and Synthesia compared by category, use, price, free tier and features
TopicRunwaySynthesia
CategoryRunwayAI Video GenerationSynthesiaAI Video Generation
Best forRunwayAI video generation and editing suite used by filmmakers and content teams.SynthesiaAI avatar video platform for training and internal communications content.
PricingRunway

Standard$15/month

or $12/month billed yearly

Free option: Free (one-time credits).

Prices in USD, checked Aug 2026

Synthesia

Starter$29/month

or $18/month billed yearly

Free option: Free (10 min/mo).

Prices in USD, checked Aug 2026

Free tierRunwayYesFree (one-time credits)SynthesiaYesFree (10 min/mo)
Key featuresRunway
  • Text-to-video and image-to-video generation
  • AI video editing tools (motion brush, green screen)
  • Camera motion and keyframe controls
  • Credit-based generation
  • API access
Synthesia
  • Script-to-video with stock avatars
  • Custom avatar options
  • Many languages and voices
  • Templates and brand kits
  • Export for LMS and training content

Sign-ups are closed for now

SubHorizon is not taking new accounts yet. If you already have one, sign in.