Synthesia vs HeyGen (2026): Which AI Avatar Video Platform Fits Your Team?

By Camellia · Updated Oct 22, 2026

If you have narrowed AI avatar video to two names, they are almost certainly Synthesia and HeyGen. Both turn a script into a presenter on screen, both bill on a shared pool of credits, and both sell to companies that want training, onboarding, sales and product video without a camera crew. The differences that decide a purchase are less visible on the homepage: how many people can edit, what a translated video costs, what each vendor does before it lets you clone a person's face, and which plan carries single sign-on.

This comparison is written for the person who signs the invoice: a head of learning, a marketing director, a COO or an agency owner. We compare the two on pricing and credit metering, seats, avatars, translation and dubbing, languages, output, governance and API, then price a five-person team producing 20 minutes of finished video a month. For the wider market, see the best AI avatar generators in 2026. If one of these two is already on your shortlist as the incumbent, the best Synthesia alternatives and best HeyGen alternatives pages cover the rest of the field.

TL;DR

The short version: Synthesia is cheaper and simpler when one person makes the videos and many people review them. HeyGen is cheaper and more flexible when several people each need to create, or when translation and 4K matter more than workspace controls.

Key Facts

• 91% of businesses use video as a marketing tool, and 63% of video marketers have used AI to create or edit video, up from 51% a year earlier, per Wyzowl's State of Video Marketing 2026.
• 82% of video marketers say video has given them a good return on investment, per the same Wyzowl survey of 266 respondents.
• Article 50 of the EU AI Act applies from 2 August 2026, setting transparency duties for deepfakes and other generated content, which affects how any avatar video is labelled.
• Synthesia says it is trusted by 90% of the Fortune 100 and has 2M+ users (vendor claim).
• HeyGen says it helps more than 100,000 businesses create video (vendor claim).

Who Each Tool Is Built For

Synthesia is organized around a workspace. You get one editor seat, a set of guest seats for reviewers, a library of branded templates, and on the top plan SCORM export, SSO and a dedicated customer success manager. It also sells interactive roleplays and conversational surveys, which tells you who it is aimed at: learning and development, HR, enablement and internal comms.

HeyGen is organized around the avatar and the language. It has the larger stock avatar library, translation on every plan, photo avatars, a video agent that builds a video from a prompt, and a developer platform. Its team features arrive at the Business plan, and it leans toward marketing, sales and localization alongside training.

Neither is a general video editor. If your work is cutting footage and adding captions, look at the best AI video editing tools first.

Pricing Side by Side

Both vendors print prices on their own pages. Compare the billing term before you compare the number, because an annual rate and a monthly rate are different products.

Synthesia plans

Synthesia's pricing page lists four plans.

Pro scales through credit levels. Billed monthly, 12,000 credits cost $176, 24,000 cost $347, 36,000 cost $514 and 48,000 cost $676. Billed yearly, the same tiers are $126, $250, $370 and $486 a month.

HeyGen plans

HeyGen's pricing page lists five plans.

HeyGen's Pro tiers run from 1,000 credits at $49 a month to 100,000 credits at $4,300 a month, and all tiers carry the same features. The annual toggle on the page is labelled "2 months free", but only Creator's annual rate is printed.

How Credits Are Metered

Both products replaced minutes with credits, so a "20-minute plan" no longer exists on either page. What a credit buys is the question that changes the bill.

The Synthesia numbers come from its pricing FAQ and the HeyGen numbers from HeyGen's pricing FAQ. Two consequences follow. First, Synthesia is easy to budget because it publishes a per-minute rate, and its regeneration rule makes light edits cheap. Second, HeyGen forgives uneven months because credits carry over, but you cannot forecast the bill without a test. Run one real two-minute script through your intended avatar and resolution, watch the credit counter, and multiply.

What 20 Minutes a Month Really Costs

The most useful table in this article prices a five-person team making 20 minutes of finished video a month. The answer changes with who needs to edit, so the table splits into three cases. Totals show 12 months at the printed rate for the stated billing term.

Case 1: one producer, four reviewers

On these figures Synthesia Pro at $64 a month billed yearly is the clean answer when reviewers only need to comment. HeyGen Creator is cheaper on paper, but it is a one-user plan, and whether reviewers can comment without a seat is something to confirm with the vendor. If every person needs a login, you are in Case 2.

Case 2: five people who each create

This is where HeyGen is straightforward and Synthesia is not. Synthesia lists one editor on Basic, Starter and Pro and a custom number of editors on Enterprise, so a team of five creators needs a sales conversation. HeyGen prints the number: $149 plus $20 per added member on Business.

Case 3: 20 minutes of video, dubbed into three languages

Dubbing into three languages means 60 minutes of dubbed output a month on top of the 20 minutes of source video.

Synthesia's dubbing rates come from its pricing FAQ: 40 credits a minute without lip-sync and 80 with it. The plan calculator on the same page uses a rounded 76 credits a minute as an estimate. HeyGen includes translation on every plan but publishes no per-minute credit cost, so a translation-heavy team has to run a pilot before it can compare.

Seats, Roles and Collaboration

Seat design is the clearest philosophical split. Synthesia treats video as something one producer makes and many people approve, so reviewers are cheap and extra editors are expensive. HeyGen treats video as something each team member can make, so seats are a plain per-user charge once you are on Business. Pick the model that matches how your team actually works.

Avatars and Custom Avatars

Avatar quality cannot be settled from a table. Every vendor calls its presenters lifelike, and no neutral benchmark ranks the two. Give both the same 60-second script, on the screen your audience will use, and judge the lip movement and blink pattern yourself.

HeyGen has the bigger stock library and the more varied avatar types (photo, digital twin, cinematic). Synthesia has fewer stock presenters but a stricter, more governed route to a custom one. If you need an executive digital twin for internal comms, the consent section below matters more than the avatar count.

Translation, Dubbing and Lip-Sync

Both vendors translate finished videos. HeyGen builds translation into every plan. Synthesia sells it as dubbing, drawing on the same credits.

HeyGen's language reach is the larger and the more visible on the pricing page. Synthesia's lower dubbing tier of 70+ languages is still wide, and its Enterprise tier doubles it. For a detailed look at dedicated tools beyond these two, see the best AI dubbing tools in 2026 and the best AI translation tools.

One caution on language claims: Synthesia's own pages give 140+ languages for voices, 70+ for dubbing on lower plans, and 130+ for its dubbing API. These describe different products. Ask which number applies to the output you will publish.

Output, Length and Editing

Resolution is the plain HeyGen lead. If you publish to large screens or want to reuse the footage in a commercial edit, Synthesia's 1080p ceiling is a real limit. For internal training watched on laptops it rarely matters.

Enterprise Governance: SSO, Certifications and Hosting

Security review often decides the winner before price does. Both vendors publish certifications, and both are claims you should confirm in writing through their trust portals.

The details above come from Synthesia's homepage and HeyGen's security page. Three practical points follow. If you need EU hosting, Synthesia states it and HeyGen does not. If you need ISO 27001 for a procurement checklist, only Synthesia states it. And if you need SSO without paying for a custom enterprise contract, HeyGen puts it on Business at a published price, whereas Synthesia holds it for Enterprise.

Consent and Custom Avatar Safety

Cloning a real person's face and voice is the riskiest thing either product does, and the two vendors handle it differently. Since 2 August 2026, Article 50 of the EU AI Act puts transparency duties on deployers of deepfake content, and that duty falls on your company, not the vendor.

The HeyGen details come from its Avatar Consent documentation, and the Synthesia details from its responsible AI page. The sharp edge is photo avatars: HeyGen is explicit that no API consent step exists for them. Whichever vendor you choose, write an internal rule about who may authorize an executive's or a customer's likeness before anyone records.

API and Automation

The API question mostly matters to teams generating personalized video from CRM or HR data. For that job, compare per-video credit cost at your volume rather than the monthly plan price, and read both vendors' developer pages before deciding. Synthesia's dubbing API figure of 130+ languages is a different number from the 70+ on its in-app dubbing, so confirm which applies.

Free Plans and Trials

HeyGen's free plan is the better test of avatar and translation quality because it gives access to its newer avatar model and a limited trial of premium features. Synthesia's free plan is the better test of workflow, because it shows the editor, templates and roleplay tools. Judge any free tier by whether it lets you test the quality you will actually publish.

When Synthesia Is the Right Call

• You are an L&D or HR team with one producer and many reviewers. Pro covers one editor and five guests, and its credits stretch across about 60 minutes of video a month.
• You need EU data residency or ISO certifications for procurement. Synthesia states both.
• You plan to build interactive training. Roleplays, surveys, quizzes and branching are core to the product, not add-ons.
• You want a predictable video bill. A published rate of about 100 credits per finished minute and a pay-only-for-new-footage rule make budgeting simple.
• You want strict consent for custom avatars. A live, on-camera consent recording applies to every personal avatar.

Real limitations: one editor below Enterprise, 1080p only, and SSO and SCORM held back for the custom-priced tier.

When HeyGen Is the Right Call

• You localize constantly. Translation is on every plan, with 175 languages and dialects on paid plans.
• Several people create video. Business adds members at a printed $20 each.
• You need 4K or long videos. Pro exports at up to 4K, and Business allows videos up to 60 minutes.
• You want SSO without an enterprise contract. SAML/SSO and SCORM export are on Business at a published price.
• You want more avatar types. Photo avatars, digital twins and cinematic avatars all sit in one product.

Real limitations: no published credits per finished minute, annual rates not printed for Pro or Business, US-only data hosting, and a photo avatar route with no consent check.

Verdict by Buyer Type

If neither wins clearly, a pilot settles it faster than another comparison page. For training specifically, the best AI tools for corporate training covers the surrounding stack, and the best LMS software covers where the exported video ends up.

Decision Framework

Answer these in order and stop at the first that decides it.

1. How many people need to create, not just review? One editor points to Synthesia Pro. Three or more point to HeyGen Business or Synthesia Enterprise.
2. Do you need SSO or SCORM without a custom contract? If yes, HeyGen Business.
3. Do you need EU hosting or ISO 27001? If yes, Synthesia.
4. How many languages will you publish in, and do you need lip-sync? Heavy translation favors HeyGen, but price it with a pilot because its rate is unpublished.
5. Do you need 4K? If yes, HeyGen Pro or above.
6. Will you clone executives? Use whichever vendor's consent flow your legal team signs off on, and ban photo avatars of real people without a written release.

What to Do Next

1. Write one real 2-minute script with the avatar and resolution you would actually publish.
2. Render it on both free plans, and watch each credit counter.
3. Translate the result into your two most important languages with lip-sync on, and have a native speaker listen.
4. Ask each vendor, in writing, for its security documents, your SSO tier and the credit cost per finished minute at your volume.
5. Re-run the cost table above with your real editors and minutes.

If a pilot ends in a tie, take the vendor whose seat model matches your team, because that is the line that changes the bill most as you grow.