Synthesia
Synthesia is a catalogue substitute when L&D and enablement teams producing talking-head explainers. Stay with Runway when Creators and agencies generating short AI video clips. Reasons come from approved editorial assessments — not a ranked best-of list.
Better when
- L&D and enablement teams producing talking-head explainers
- Internal comms that need on-brand avatars without a film crew
Worse when
- Generative B-roll / text-to-shot filmmaking (Runway)
- Still-image art direction (Midjourney)
Key tradeoff: Synthesia fits L&D and enablement teams producing talking-head explainers; Runway fits Creators and agencies generating short AI video clips.

