Arcads vs Synthesia: the comparison that includes agent access
Arcads and Synthesia put side by side on ten dimensions, on price, and on the row most comparisons leave out: whether software can call them without a person in the browser.
Facts verified August 2026 Compiled from each vendor's own public documentation. Domains are arcads.ai and synthesia.io, neither of which we link to.
Quick verdict
The short answer, before the tables.
Arcads and Synthesia are both filed as avatar UGC tools on this site, so this is a like for like comparison.
We cannot rank these two on price honestly, because the figures we hold for Arcads are reported rather than confirmed against an official price list.
For anyone driving this from an agent the gap is not close. Arcads gives you a first-party MCP server and a gated or waitlisted API, while Synthesia gives you no MCP server and a public API.
Synthesia answers yes to more of the ten dimensions below, which usually means fewer other tools in the pipeline rather than better output.
Quick specs
The five rows most people check first.
| Arcads | Synthesia | |
|---|---|---|
| What it is | Avatar UGC tool | Avatar UGC tool |
| Entry price | Pricing not published | Free tier, then $29 per month |
| Free tier | No | Yes |
| Pricing confirmed | No, not published | Yes, from a published price list |
| Agent access | First-party MCP server. API gated or waitlisted. | No MCP server. Public API. |
Entry price is the cheapest paid monthly plan a vendor publishes. Where a vendor does not publish one, this table says so rather than guessing. Facts verified August 2026.
Feature by feature
The same ten questions asked of both, plus the agent access row underneath them.
| Dimension | Arcads | Synthesia |
|---|---|---|
| Avatar library | Yes | Yes |
| Actor licensing | Not clearly stated | Commercial use stated |
| Batch generation | Yes | No |
| Public API | No | Yes |
| Watermark on free plan | No free plan | Yes |
| Languages | Not confirmed | 160+ |
| Aspect ratios | 9:16 | 16:9, 9:16, 1:1 |
| Hook variations | Yes | No |
| Editing suite | No | Yes |
| Direct publishing | No | No |
| Agent and MCP access | First-party MCP server. API gated or waitlisted. | No MCP server. Public API. |
Not confirmed means the public documentation did not state an answer, not that the answer is no. Facts verified August 2026.
Pros and cons
Straight from the same research pass, unpadded.
Arcads
What works
- First-party MCP connector documented in the Arcads help center
- Large library of AI actors for UGC-style ads
- Fast turnaround from script to finished video
- Documented REST API for programmatic video creation
What does not
- No public pricing page; arcads.ai/pricing returns a 404 and prices are only shown after signup
- No free trial
- Credits reportedly do not roll over
- REST API access is gated behind a custom plan
Synthesia
What works
- Free tier with 10 minutes of video per month, no credit card
- 160+ languages across all plans
- API access from the Creator plan
- 1-click translation into 80+ languages on Enterprise
What does not
- Free and Starter plans lack API access
- Free tier videos carry a watermark
- No public MCP server found
- Plans are billed in annual credit allotments, making monthly cost comparisons less direct
Which should you choose
Four buyers, four different answers. Each pick names the row it is based on.
| If you are | Pick | Because |
|---|---|---|
| A solo creator | Synthesia | Synthesia has a free tier, so you can judge the output before spending anything. |
| A performance marketer | Arcads | Hook variations are built in here and not on the other side, which is the feature that decides how fast you can test creative. |
| An agency running several clients | Arcads | Batch generation is supported, which is the difference between one brief per client and one brief per ad. |
| A developer or agent user | Arcads | First-party MCP server. API gated or waitlisted. That is the shortest path to calling it from software. |
These picks are derived from the recorded fields on this page, not from a hands on test. Facts verified August 2026.
Arcads vs Synthesia questions
What is the main difference between Arcads and Synthesia?
Arcads turns a script into AI-actor UGC-style ad videos and exposes a first-party MCP connector for agents. Synthesia produces AI presenter videos from text scripts using stock or personal avatars, with a free tier and API access starting at the Creator plan. Both are filed as avatar UGC tools here, so the difference is in the detail: Arcads reaches further for an agent, with a first-party MCP server and a gated or waitlisted API against no MCP server and a public API on Synthesia, and Synthesia answers yes to more of the ten dimensions on this site than Arcads does.
Is Arcads or Synthesia cheaper?
This cannot be answered from confirmed data alone. Arcads: Pricing not published. Synthesia: Free tier, then $29 per month. Where a figure is not confirmed against an official price list, we do not print it as fact.
Can an AI agent use Arcads or Synthesia?
Arcads runs a first-party MCP server, so an MCP client can call it directly even though the underlying API is not openly available. Synthesia has no MCP server, but it does publish an API, so an agent can reach it through a wrapper you write and maintain yourself.
Does Arcads or Synthesia have a free plan?
Synthesia has a free tier. Arcads does not on the public record.
Which one includes editing tools?
Synthesia includes an editing suite. Arcads does not, so captions, trims and reframes happen in another tool.
We are not affiliated with Arcads and Synthesia. Product names are used to describe what those products do. This site is built by the team behind wireflow.ai, so wireflow is our own product and we say so wherever it appears.
Pick on the row you cannot change later
Output quality across this category moves every few months and most of these tools share the same underlying models. What does not move quickly is whether your software can call the thing. Decide that row first and the rest gets easier.
Facts verified August 2026. If a cell here is out of date, that is a mistake and not a position.