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Runway vs Synthesia

A feature-by-feature comparison of Runway and Synthesia across 7 capability categories.

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Modalities — Runway Wins

Modalities: Runway compared with Synthesia
FeatureRunwaySynthesia
Text Input
Yes. Text prompting is the primary interface.No. Auto populated
Image Upload / Vision
Yes. Image-to-video and reference images for style.No. Auto populated
Image Generation
No. Does not generate still images.Partial. Auto populated
Voice Mode
No. No voice interface.No. Auto populated
Video Understanding
Partial. Video is uploaded for editing tools such as inpainting, not for question answering.Partial. Auto populated
Video Generation
Yes, requires plus plan. Gen-3 / Gen-4 text-to-video and image-to-video in the web studio.Yes, requires plus plan. Avatar videos generated from a script in the studio.
File Upload (PDF, DOCX)
Partial. Media uploads only, not documents.Yes. Auto populated
Code Execution
No. Not a code tool.No. Auto populated
Audio Input
No. No audio input.No. Auto populated
Canvas / Artifact Editor
Yes. Timeline and canvas editor for composing generations.No. Auto populated
Screen Sharing / Computer Use
No. No computer-use capability.No. Auto populated

Memory & Context — Tie

Memory & Context: Runway compared with Synthesia
FeatureRunwaySynthesia
Persistent Memory
No. No cross-session memory of the user.Partial. Auto populated
Large Context Window
No. Not a language model, so this does not apply.No. Auto populated
Custom Instructions
No. No global instruction setting.No. Auto populated
Conversation History
No. Not a chat product, so there is no conversation to configure.No. Auto populated

Integrations — Runway Wins

Integrations: Runway compared with Synthesia
FeatureRunwaySynthesia
Web Search / Browsing
No. No browsing capability.No. Auto populated
Plugins / Extensions
No. No plugin marketplace.No. Auto populated
API Access
Yes. Video generation API for developers.Paid Only. Auto populated
Zapier Integration
Unknown. Not confirmed either way.No. Auto populated
Custom GPTs / Bots
No. No agent or bot builder.No. Auto populated
Real-time Collaboration
Yes. Shared team workspaces.No. Auto populated
Live Social Data Integration
Live Citation Mapping

Developer — Tie

Developer: Runway compared with Synthesia
FeatureRunwaySynthesia
Function Calling
No. No tool-calling interface.No. Auto populated
Streaming Responses
No. Generations are returned complete, not streamed token by token.No. Auto populated
Fine-Tuning
Partial. Custom style and character training on paid tiers.No. Auto populated
Embeddings API
No. No embeddings endpoint.No. Auto populated
Structured Output (JSON)
No. Not a language model, so this does not apply.No. Auto populated
Reasoning / Thinking Mode
No. Not a reasoning model.No. Auto populated
Local Execution
Open Weights
Multi-Agent Orchestration

Platforms — Runway Wins

Platforms: Runway compared with Synthesia
FeatureRunwaySynthesia
Web App
Yes. Browser-based; no install required.No. Auto populated
iOS App
Yes. Native iOS app.No. Auto populated
Android App
No. No native mobile app; the web app runs in a mobile browser.No. Auto populated
Desktop App
No. Browser only.No. Auto populated
Chrome Extension
No. No official browser extension.No. Auto populated

Privacy — Runway Wins

Privacy: Runway compared with Synthesia
FeatureRunwaySynthesia
GDPR Compliant
Yes. Runway publishes a DPA and serves EU customers.No. Auto populated
Opt Out of Data Training
Unknown. Needs a read of the current policy before we assert this.No. Auto populated
Enterprise Privacy Mode
Yes, requires enterprise plan. Enterprise tier with SSO and custom data terms.No. Auto populated

Workspaces — Runway Wins

Workspaces: Runway compared with Synthesia
FeatureRunwaySynthesia
Projects / Folders
Yes. Assets and sessions are organised per project.No. Auto populated