Synthesia

Synthesia generates videos using AI avatars that speak your script. You type text, choose an avatar and voice, and it creates a video — no filming required. Supports 120+ languages and accents. Best for training videos, internal communications, and product tutorials where production quality matters less than speed and translation. Updates are easy: change the script, re-render.

Ideal for HR teams creating onboarding videos in multiple languages, SaaS companies making product walkthroughs, and corporate training at scale. If you're producing 50+ training videos and need them in 10 languages, Synthesia saves massive time and cost versus filming with actors. The avatars are good enough for instructional content.

Where it falls short: avatars still look slightly uncanny (viewers can tell it's AI), not suitable for brand marketing or YouTube content where authenticity matters, and pricing is steep for occasional use (starts at $30/month for limited videos). If you're creating customer-facing content, use real people. But for internal or instructional content, it's a solid efficiency play.