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Synthesia
AI avatar videos, dubbing and roleplay sessions for business training and comms
Free · from $19/mo synthesia.io
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synthesia.io
Pricing
Free · from $19/mo
Free trial
Yes
API
Yes
Platforms
WebAPI
What is Synthesia?
Synthesia is an AI video platform that turns scripts, documents, PowerPoints and links into narrated videos presented by AI avatars, in 140+ languages. Teams pick from stock avatars or create a personal avatar from a single photo. They can then translate existing videos with voice cloning and lip-sync and publish them as links, embeds or SCORM packages.
The platform also includes Sessions: interactive avatars that run roleplay practice, such as sales calls or manager feedback, and conversational surveys that ask follow-up questions and summarize themes. An AI video agent called Syren creates videos from a description. Developers can generate videos, automate dubbing and embed real-time avatars through an API or an MCP server.
Synthesia is aimed at learning and development, HR, sales enablement and marketing teams. The site lists SOC2, GDPR, ISO42001 and SAML/SSO support for enterprise buyers.
Key features
- AI avatar videos from a script in 140+ languages
- Personal avatar created from a single photo
- Convert docs, PPTs or links into narrated video
- Video dubbing with voice cloning and lip-sync
- Interactive videos with quizzes, branching and CTAs
- Avatar roleplay and conversational survey sessions
- Publish via link, embed or SCORM with analytics
- API and MCP server for programmatic video creation
Use cases
Who it's for
Learning & development teamsHR and internal communicationsSales enablement teamsMarketing teamsDevelopers building avatar products
Compliance and technical training
L&D teams turn policy documents or slide decks into avatar-led training videos and export them to an LMS via SCORM.
Localizing video libraries
Translate existing videos into 140+ languages with voice cloning and lip-sync, using glossary controls to keep terminology consistent.
Sales and manager practice
Teams rehearse cold calls, discovery calls or feedback conversations with avatars that push back, with completion tracking and scoring.
Customer and employee research
Run conversational surveys where an avatar asks follow-up questions and key themes are summarized automatically.
Synthesia pricing
From the vendor's site, checked Oct 26, 2026; we re-check prices monthly. Prices change — confirm on their pricing page.
Basic
month
Free
- 10 minutes of video creation or dubbing
- 500 credits/month
- 3 survey responses
- 9 AI avatars
- Videos carry a Synthesia watermark
Starter
month
$19/mo ($9 first month)
- 1,250 credits/month (~12 extra video minutes)
- Download videos, remove logo
- AI Video Assistant
- 125+ AI avatars, 3 guests
Pro
month
$89/mo ($49 first month)
- 6,000 credits/month (~60 extra video minutes)
- 5 personal avatars
- Interactive videos and branded video pages
- 180+ AI avatars, 5 guests
Enterprise
custom
Custom
- Unlimited video minutes
- 240+ avatars, unlimited personal avatars
- SAML/SSO, Brand Kits, SCORM export
- Dedicated CSM
Roleplay Training add-on
month
$29/learner/month
- Assign scenarios, track completion and scores
- No session limits for seated learners
What the free plan gets you
- In practice: up to 10 minutes a month
- 500 credits / month
- 10 minutes of video creation or dubbing
- 3 survey responses
- 9 AI avatars
- Output carries a watermark
$1.58 per minute of generated video on the Starter plan ($19/mo ÷ 12 minutes).
How Synthesia compares
- At $19/mo, Synthesia starts cheaper than 2 of 3 similar tools with published prices (median $21.50).
- Synthesia has a free plan, like 3 of the 4 alternatives below.
| Tool | Starts at | Cost per minute of generated video | Free plan | Free trial | API | Open source | |
|---|---|---|---|---|---|---|---|
| SSynthesia | $19/mo | $1.58 | — | ||||
| H | $24/mo | — | — | Synthesia vs HeyGen | |||
D D-ID | — | — | — | — | Synthesia vs D-ID | ||
C Colossyan | $59/mo | $1.97 | — | Synthesia vs Colossyan | |||
R Runway | $12/mo | — | — | Synthesia vs Runway |
Compare 8 capabilities
| Capability | Synthesia | HeyGen | D-ID | Colossyan |
|---|---|---|---|---|
| Photo-to-avatar | — | — | ||
| Custom video avatar | ||||
| Voice cloning | — | |||
| Lip-synced translation | — | — | ||
| Doc/PPT to video | ||||
| Interactive elements | ||||
| SCORM export | — | |||
| Real-time avatar agents | — |
Capabilities as stated on each vendor's own site; — means the site doesn't say. The closest alternatives in our directory by category. “Starts at” is the cheapest paid plan per month, as each vendor lists it.
Synthesia data and privacy
Trains AI on your content
Not stated
Data retention
Customer Data retained per customer's instructions and applicable law
“We will retain Customer Data in accordance with Customer’s instructions (including to perform any applicable terms in the Agreement and through Customer’s use of Platform functionality) and as required by applicable law.”
Where data is stored
Not stated
Security and compliance
GDPR
From Synthesia's own privacy and security pages , checked Oct 28, 2026. We only show what the vendor states in writing; “not stated” means the pages don't say.
Who's behind Synthesia
- Company
- Synthesia Limited
- Based in
- London, United Kingdom
- Founded
- 2017
- Founders
- Victor Riparbelli, Steffen Tjerrild, Matt Niessner, Lourdes Agapito
“Synthesia was founded in 2017 by a team of AI researchers and entrepreneurs from Stanford, Cambridge, UCL, and TUM.”
“Victor Riparbelli CEO & Co-founder Steffen Tjerrild COO & Co-Founder Prof. Matt Niessner Co-Founder Prof. Lourdes Agapito Co-Founder”
From Synthesia's own about, terms and privacy pages, checked Oct 28, 2026.
Synthesia release activity
4Oct
Nov
4 changelog entries since Oct 2026, latest Oct 27, 2026. Changelog
Pros and cons
Strengths
- Free plan with 10 minutes of video per month, no credit card required
- 140+ languages and voices on every plan
- API, MCP server and LiveKit plugin for developers
- Lists SOC2, GDPR, ISO42001 and SAML/SSO compliance
Limitations
- Free plan videos carry a Synthesia watermark and cannot be downloaded
- SCORM export, SAML/SSO and Brand Kits are listed only on Enterprise
- Roleplay learner seats cost an extra $29/month each
- Studio avatars are a $1,000/year add-on for annual plans only
Synthesia FAQ
Is there a free plan?
Yes. The Basic plan is $0 and includes 10 minutes of video creation or dubbing, 500 credits and 3 survey responses per month. Videos on this plan carry a watermark.
How much do paid plans cost?
Starter is $19/month ($9 for the first month) and Pro is $89/month ($49 for the first month). Enterprise pricing is custom. Yearly billing is also offered.
How do credits work?
Credits are a shared pool for all usage-based features. The pricing page estimates about 100 credits per video minute, 76 per dubbing minute and 350 per survey response.
Does Synthesia have an API?
Yes. There are APIs for video creation, dubbing and real-time interactive avatars, plus an MCP server for making videos inside Claude or ChatGPT.
How many languages are supported?
Synthesia supports more than 140 languages and voices, and video translation includes voice cloning and lip-sync.
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Synthesia
Free · from $19/mo