Synthesia

What Synthesia does

Users type a script or upload a document and Synthesia produces a video with a lifelike AI presenter, in more than 140 languages, without cameras or actors. It also dubs and translates existing videos, records screens and offers interactive role-play and survey sessions with avatars. Most customers are large organisations using it for learning, HR, sales enablement and product marketing, and the company is now building conversational agents for workplace learning.

ForEnterprisesBrandsSmall businesses

Products

• AI Avatars and AI Video GeneratorCreates presenter videos from a script, prompt or document, with stock or personal avatars.
• AI Video Dubbing and TranslationDubs and translates videos into other languages.
• Sessions (Roleplay and Survey)Interactive conversations with avatars for sales and manager role-play practice and conversational surveys.
• Synthesia APIProgrammatic video creation, dubbing and real-time interactive avatars, plus MCP access.

How it uses AI

• Generates lifelike AI presenters (240+ stock avatars, plus personal avatars) speaking scripts in 140+ languages.
• Conversational AI agents for organisational learning, allowing employees to ask questions and practise scenarios; named the company's core strategic focus in 2026.

Milestones

1. 2017Synthesia founded in London by AI researchers and entrepreneurs.
2. Jan 2025$180M Series D led by NEA at a $2.1B valuation.
3. Jan 2026$200M Series E led by GV at a $4B valuation, plus an employee secondary sale with Nasdaq.

Sources

1. Synthesia raises $200 million Series E at $4 billion valuation (opens in a new tab), Synthesia, 26 Jan 2026
2. Synthesia secures $180M in Series D funding (opens in a new tab), Synthesia, 15 Jan 2025
3. About us (opens in a new tab), Synthesia
4. Pricing (opens in a new tab), Synthesia
5. Synthesia snaps up $180M on a $2.1B valuation for its B2B AI video platform (opens in a new tab), TechCrunch, 14 Jan 2025