Synthesys review: AI video agent that turns one prompt into ads, UGC and explainers for marketers
AI video agent that turns one prompt into ads, UGC and explainers for marketers
Starts at $29/mo, free plan: no, prices checked on October 20, 2026.
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What Synthesys does
Synthesys is an AI video agent built for marketing teams. According to its homepage, you describe what you want in a single prompt and it produces product ads, UGC, explainer videos, training videos, reel ads and commercial video ads. Rather than building its own video engine, it coordinates several third-party AI video models, including SeeDance, Google VEO and Kling.
The site lists a library of more than 1,000 AI avatars, more than 400 voices and more than 140 languages, with lip-sync. It can recreate an ad or product page from a URL. Pro and higher plans add a Brand Kit for logos, colours, products and end cards, and Agency adds a winning video ads library and publishing. Videos can be published and scheduled to TikTok, Instagram and Facebook, and the pricing page mentions full commercial rights. An MCP server connects Synthesys to assistants such as Claude, ChatGPT and Cursor, and API keys are also supported. The company says it was founded in London in 2020.
Pricing is paid and credit based, in US dollars and excluding tax. Starter is $29 per month billed monthly or $20 per month billed yearly, with 3,500 credits per month. Pro is $59 monthly or $41 billed yearly with 8,000 credits. Agency is $119 monthly or $83 billed yearly with 17,000 credits. Max starts from $199 monthly or $139 billed yearly, with from 30,000 credits. The pricing page shows no free plan and no free trial.
- Prompt-to-video generation for ads, UGC and explainers
- Orchestration of several third-party AI video models
- AI avatars, voices and lip-sync in many languages
- Recreate an ad or product page from a URL
- Brand Kit with logos, colours, products and end cards
- Publish and schedule to TikTok, Instagram and Facebook
- MCP server and API keys for connected apps
- Full commercial rights on videos
Pros and cons
Pros
- Creates several video types, such as product ads, UGC, explainers and training videos, from a single prompt
- Coordinates several third-party AI video models rather than relying on one
- Large library of AI avatars, voices and languages with lip-sync
- Publishes and schedules to TikTok, Instagram and Facebook, and the pricing page mentions full commercial rights
- API keys and an MCP server let AI assistants such as Claude or ChatGPT spend the same credits
Cons
- No free plan or free trial on the pricing page
- Yearly billing is cheaper, so monthly billing costs more, for example $29 instead of $20 per month on Starter
- Brand Kit starts at Pro and publishing with the winning video ads library starts at Agency
- Plan credits reset each month, and unused ones do not carry over
- Refunds are limited to 3 days after purchase and no more than 25% of the plan used
Our take
Synthesys fits marketers, agencies and creators who need many ad, UGC and explainer videos and want one tool that coordinates several AI models, avatars, voices and publishing. Agencies that manage several clients may care about the higher worker counts: 10 autopilot workers on Agency and Max, against 1 on Starter. It is a weaker fit for people who want to try the product for free first, since the pricing page lists no free plan or trial. Seats are small on lower plans (1 on Starter, 2 on Pro, 3 on Agency), so larger teams are pushed toward Max. Because usage is measured in credits, buyers should check how many credits their typical videos consume before picking a tier. This assessment comes from reading the official pages, not from using the product.
Comparisons and lists with Synthesys
Coming soon
Coming soon — we are writing comparisons that include Synthesys.
Synthesys pricing
| Plan | Monthly billing | Annual billing (per month) | Limits / what’s included |
|---|---|---|---|
| Starter per month | $29 | $20 | 3,500 credits per month; 1 autopilot worker; 1 team seat |
| Pro per month | $59 | $41 | 8,000 credits per month; 3 autopilot workers; 2 team seats; adds Brand Kit |
| Agency per month | $119 | $83 | 17,000 credits per month; 10 autopilot workers; 3 team seats; adds winning video ads library and publishing |
| Max from per month | $199 | $139 | from 30,000 credits per month; 10 autopilot workers; 5, 10 or 15 seats by credit step; dedicated account manager |
Free trial: none listed. Free plan: no.
Prices checked on on the official Synthesys pricing page. “—” = not published.
All Synthesys plans, limits and annual prices →
Frequently asked questions
How much does Synthesys cost?
Starter is $29 per month billed monthly or $20 per month billed yearly. Pro is $59 monthly or $41 billed yearly. Agency is $119 monthly or $83 billed yearly. Max is from $199 monthly or $139 billed yearly. Prices are in US dollars and exclude tax.
Is there a free plan or free trial?
No. The pricing page shows only the paid plans Starter, Pro, Agency and Max, and no free trial was found.
Do unused credits roll over?
Unused plan credits reset at the next monthly grant. Credits from a pack never expire.
Can I connect Synthesys to other tools?
Yes. Connected apps and API keys can spend up to 5,000 credits a day, resetting at 00:00 UTC, and the Synthesys MCP server links it to assistants such as Claude, ChatGPT or Cursor.
What is the refund policy?
You can get a refund within 3 days of purchase if you have used no more than 25% of your plan.
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