Prices checked September 3, 2026

HeyGen vs Synthesia

The two best-known AI avatar video tools, compared on what reviewers actually argue about: realism, languages, what a dollar buys, and what happens to the video after it renders. Prices read from both pricing pages on the date shown.

Verdict

HeyGen wins for creators and marketers who care about realism and speed: reviewers rate its lip-sync best in class, it translates into 175+ languages, the free plan allows 3 short videos a month and the Creator plan is $29 per month (or $24 annually) for 600 credits. Synthesia wins for corporate training: 240+ avatars, PowerPoint-to-video, SCORM export and SSO on Enterprise, with a $29 Starter plan ($18 annually) that buys about 10 minutes of video a month. Neither posts to TikTok, Instagram Reels or YouTube Shorts, schedules, or attributes a video to a signup.

If the videos are for social feeds rather than a training portal, the more useful comparison is with a tool that generates UGC-style video from your URL and publishes it natively, which is the third option on this page.

HeyGen vs Synthesia at a glance

	HeyGen	Synthesia
Category	AI avatar video generator	Enterprise AI avatar video
Starting price	$29 (Creator)	$29 (Starter)
Free plan	Yes: 3 videos per month, up to 1 minute each, 1080p export, 1 custom video avatar plus 500+ stock avatars.	Yes: the Basic plan gives 1,200 credits per month (about 10 minutes of video) with 9 avatars and no logo removal.
Best for	Teams that need realistic presenter videos at scale in many languages, for training, localisation, sales outreach or product-page ads, and will handle posting and measurement in other tools.	Enterprise training, HR, sales-enablement and internal-communications teams that need polished, translatable explainer videos and have the budget for minutes-based pricing.
Reviewers praise	Lip-sync and avatar animation quality rated best in class, with fast generation	The fastest route from a script to a professional presenter video with no studio, actors or equipment
Reviewers complain about	The credit system is confusing and can charge more credits than the stated rate; export is locked behind paid plans.	Avatars and lip-sync are widely described as uncanny, with mouth movements that do not always match the audio.

Where HeyGen wins

Realism: lip-sync and animation rated best in class by reviewers; Synthesia's avatars are often called uncanny
Languages: 175+ with lip-sync, versus 160+ on Synthesia
Free plan: 3 videos a month with export, versus about 10 minutes with the Synthesia logo on output
Generation speed: minutes, where Synthesia reviewers report around 30 minutes to render a 15-minute video
Creator features: unlimited photo avatars and voice cloning from the $29 plan; a pay-as-you-go API from $5

Where Synthesia wins

Enterprise stack: SCORM export, SSO, brand kits, dedicated success managers and LMS integrations
Training workflow: PowerPoint-to-video and multiple avatars per scene on the Creator tier
Avatar count: 240+ stock avatars on Enterprise, 125+ from Starter
Annual price: $18 per month billed annually on Starter, versus $24 for HeyGen Creator
Reputation: 4.6 on Capterra across 314 reviews and a longer enterprise track record

Pricing, side by side

HeyGen plans

Free: Free (Free annual). 3 videos per month, 1 minute maximum, 1080p
Creator: $29 ($24 annual). 600 credits per month, videos up to 30 minutes, 1080p
Pro: From $49 (Not listed annual). 1,000 credits per month at the base tier, scaling to 100,000 credits, videos up to 30 minutes, 4K
Business: $149 + $20 per seat (Not listed annual). 1,500 credits per month, videos up to 60 minutes, 4K
Enterprise: Custom (Custom annual). No duration maximum, 4K
API: Pay as you go from $5 (n/a annual). Metered per second of output, no commitment

Full HeyGen pricing breakdown

Synthesia plans

Basic (Free): Free. 1,200 credits per month, about 10 minutes of video, 9 avatars
Starter: $29 ($18 annual). 1,200 credits per month (14,500 per year), about 10 minutes per month, 125+ avatars
Creator: $89 ($64 annual). 3,600 credits per month (44,000 per year), about 30 minutes per month, 180+ avatars
Enterprise: Custom (Custom annual). Unlimited minutes, 240+ avatars, unlimited personal avatars

Full Synthesia pricing breakdown

The distribution test: what happens after the render

Job	HeyGen	Synthesia	Fastlane
Generates content from your website URL
Publishes natively to TikTok, Instagram Reels and YouTube Shorts
Schedules posts weeks ahead
Attributes signups and sales to individual posts
Remixes trending formats
Generates AI UGC video with realistic characters
Supplies human-warmed social accounts

The third option: Fastlane

Generate from a URL, publish natively to TikTok, Reels and Shorts, attribute signups and sales to every post.

Both tools stop at the file. Fastlane starts at your website URL and ends at the feed: it generates AI UGC videos with 1,000+ hyper-realistic characters built for the phone-camera style TikTok rewards, plus slideshows, hook + demo videos and memes remixed from 25,000+ trending videos, then publishes natively to TikTok, Instagram Reels and YouTube Shorts on a schedule.

It also answers the question neither avatar tool can: which video produced a signup or a sale. Unified analytics attribute both to each post. The free plan needs no credit card and paid plans start at $29 per month, the same entry price as HeyGen and Synthesia.

Try Fastlane free See the AI UGC video generator

HeyGen vs Synthesia: frequently asked questions

Is HeyGen better than Synthesia?

For realism, speed and creator features, reviewers say yes. For enterprise training with SCORM and SSO, Synthesia is the stronger fit. Both cost $29 per month at entry and neither publishes to social platforms.

Which is cheaper, HeyGen or Synthesia?

Both start at $29 per month. On annual billing Synthesia Starter is $18 per month versus HeyGen Creator at $24. Synthesia's plan buys about 10 minutes of video; HeyGen's buys 600 credits.

Which has the better free plan?

HeyGen: 3 videos a month of up to one minute at 1080p. Synthesia's free Basic plan gives about 10 minutes with its logo on the output and no downloads without upgrading.

Does HeyGen or Synthesia post to TikTok?

Neither. Both export files. Fastlane publishes natively to TikTok, Instagram Reels and YouTube Shorts and attributes signups and sales to each post.

Which is better for training videos?

Synthesia, for its PowerPoint-to-video workflow, SCORM export, SSO and LMS integrations. HeyGen offers SCORM on its Business plan but is aimed more at marketers and creators.

Ship 30 days of viral content in 30 seconds

Join 50,000+ founders and marketers publishing the same video to TikTok, Instagram and YouTube. Free to start.

Try Fastlane free See pricing