Synthesia is a polished enterprise avatar platform, but one-star reviewers cite price, credits, cancellation and support.

By KevinEvery rating and review checked on 11 November 2026

We read Synthesia's public Trustpilot profile (3.8 out of 5 across 1,830 reviews), its pricing page and its homepage on 11 November 2026. 72% of reviewers give five stars, while 13% give one star, citing cost ("at least twice as expensive as other similar companies"), credits that run out on a monthly plan, a refused refund after cancelling, and a custom avatar that mispronounced industry terms. Synthesia is built for training and business video: 125+ stock avatars on Starter, 140+ translation languages and SOC 2 Type II. Zemith Plus ($15.99/month) is built for creators and marketers who want short presenter ads, talking photos, captions and dubbing plus video models and AI chat on 1.5M monthly credits.

Zemith

Synthesia

ZemithOur pick

Zemith Plus gives creators presenter ads, talking photos, dubbing, captions and AI chat for $15.99/mo.

Ad Maker turns a product photo into 9:16 presenter ads in three script angles (Hook, Problem to solution, Testimonial), with an AI-made presenter, your own photo or a saved AI Influencer character, and word-by-word captions.
Talking photos and Lipsync make a photo or a clip speak your script or your own recording, and Language Swap dubs clips of up to 60 seconds into 21 languages with lip-sync (optional voice cloning in nine).
Captions, Voice Change, Veo 3.1, Kling V3.0, Seedance 2.5 and Wan video, Director multi-shot films, Product Studio and GPT, Claude, Gemini and Grok chat all run on the same $15.99/mo Plus plan.
Plainly: Zemith has no library of 125+ stock studio avatars reading a script for 30-minute training videos, and no SCORM export or enterprise compliance pack. It is built for creators and marketers who need short presenter ads, captions and dubbing plus the rest of the AI stack.

Synthesia Starter (monthly billing)$19/mo

1,250 credits, up to about 12 minutes of video; credits reset every month; no stock-avatar library or SCORM on Zemith

Zemith Plus$15.99/mo

1.5M credits · Ad Maker + talking photos + Lipsync + Language Swap + Captions + Veo 3.1, Seedance 2.5 + GPT, Claude & Gemini

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How Synthesia is rated on Trustpilot.

3.8

Trustpilot, 1,830 reviews · read 11 Nov 2026

Most reviewers rate Synthesia highly, while the one-star reviews focus on price, credits, refunds and support:

5 stars72%

4 stars11%

3 stars2%

2 stars2%

1 star13%

Read on Synthesia's public Trustpilot page on 11 November 2026; 108 of the 1,830 reviews were posted in the past 12 months, and Trustpilot notes the company has not recently asked customers for reviews or replied to negative ones. We show Trustpilot only because we could not open a G2 star breakdown to verify it.

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Revenue grew 18% this quarter and churn fell to 2.1%. Here is how our pricing compares before the board meeting.

Competitor pricing

Company	Plan	Price
Northwind	Team	$12 per seat
Contoso	Business	$18 per seat
Fabrikam	Pro	$24 per seat

Add a product photo, pick a presenter, and get three 9:16 talking ads with captions, with the exact credit cost shown before you render.

The three complaints Synthesia users repeat most in 2026.

Expensive, and credits run out fast on the monthly plan.

“they are expensive, at least twice as expensive as other similar companies”Trustpilot, 1-star review, Oct 2026

“I paid for the monthly plan and ran out of credits quickly when trying to generate videos.”Trustpilot, 1-star review, Jun 2026

On ZemithZemith Plus is $15.99/month with 1.5M credits shared across every studio and chat, and every paid plan can add $10 top-ups (800,000 credits) that never expire. Each render shows its credit cost first.

Cancelled but still charged, and a support loop that never fixes it.

“at the end of the first year I cancelled but they still took my money and refused to refund it.”Trustpilot, 1-star review, Feb 2026

“What should have been a standard signup devolved into a chaotic, one-hour ordeal on live chat.”Trustpilot, 1-star review, Sep 2026

On ZemithZemith's Free plan needs no card, paid prices are public, and you can cancel anytime from your profile.

A custom avatar that mispronounced industry terms.

“The avatar I generated of myself had mispronunciations of industry-specific terms that we were never able to fix”Trustpilot, 1-star review, Jul 2026

On ZemithTalking photos and Lipsync take your exact script or your own recorded audio (MP3, WAV or M4A), so a term you record yourself stays pronounced your way, and Lipsync keeps your real footage.

What Synthesia genuinely gets right, and where Zemith is the better fit.

Translation and dubbing across a very wide range of languages.

“Automatically translate your videos into 140+ languages”Synthesia homepage, Official product claim, Checked 11 Nov 2026

On ZemithLanguage Swap covers 21 languages for clips of 2 to 60 seconds, with lip-sync and optional voice cloning in nine. That fits ads, Reels and product demos, not long training libraries.

Enterprise security and compliance for training teams.

“SOC 2 Type II, ISO 27001, ISO 27701, and ISO 42001 certified, and GDPR compliant, with EU data residency”Synthesia homepage, Official product claim, Checked 11 Nov 2026

Honest noteZemith makes no such compliance claims. If your legal team needs SOC 2 and SCORM for L&D video, Synthesia is built for that; if you make short ads and social video, you do not need to pay for it.

How Synthesia compares with Zemith on price, avatars and creator tools.

Published US prices from synthesia.io/pricing, Zemith from zemith.com/pricing. Checked 11 November 2026.

Capability	Synthesia Starter	Synthesia Pro	Zemith Plus	Zemith Professional
Monthly price (USD) Monthly / yearly billing	$19/mo ($14/mo billed yearly) · 1,250 credits	$89/mo ($59/mo billed yearly) · 6,000 credits	$15.99/mo ($179.88/yr · $14.99/mo)	$29.99/mo ($299.88/yr · $24.99/mo)
Stock avatar library Presenter reading a script	125+ stock avatars, 3 personal	180+ stock avatars, 5 personal	No stock library; AI-made presenters in Ad Maker, your own photo or a saved AI Influencer character	Same, with 2x the monthly credits (3M)
Video length What the plan makes	Up to about 12 min of video a month	Up to about 60 min of video a month	Short 9:16 presenter ads and clips; Director builds multi-shot films	Same tools, 2x the credits
Dubbing & lip-sync Translate and re-voice	140+ languages; 80 credits a minute with lip-sync, 40 without	Same, plus higher credit tiers	Language Swap (21 languages, clips up to 60 s, voice clone in 9) + Lipsync + Voice Change	Same tools, more credits
Captions Burned-in subtitles	Not listed on the pricing page	Not listed on the pricing page	Captions in 6 styles, plus word-by-word captions in Ad Maker	Same
Video models & product photos Beyond avatars	Not included	Not included	Veo 3.1, Kling V3.0, Seedance 2.5, Wan + Product Studio + Virtual Try-On	Same, with 2x the monthly credits
Buying more credits When you run out	Extra credits valid 12 months; plan credits reset monthly	Higher credit levels on Pro	$10 top-ups (800k credits) that never expire	Top-ups up to $100 (10.4M credits), never expire
AI chat, research & files Scripts, research, reports	Not included	Not included	GPT, Claude, Gemini, Grok + Deep Research + Word, PowerPoint, Excel & PDF	All Plus tools + Claude Opus, flagship GPT & Cloud agents

Our verdict: Synthesia suits enterprise training video, while Zemith Plus ($15.99/mo) suits creators who make short presenter ads, captions and dubbing.

Synthesia scores 3.8/5 on Trustpilot (1,830 reviews); one-star reviews cite price, credits that run out, refused refunds and support.
Starter ($19/month) makes up to about 12 minutes of video and Pro ($89/month) about 60, and plan credits reset every month.
Zemith Plus ($15.99/month) includes Ad Maker, talking photos, Lipsync, Language Swap, Captions, Veo 3.1 and Seedance 2.5 video and GPT, Claude and Gemini, but no stock-avatar library or SCORM.
Want the plan-by-plan credit math? Read our Synthesia pricing breakdown.

Questions people ask about Synthesia.

Is Synthesia worth it in 2026?

For teams that need 30-minute training videos with stock avatars, SOC 2 and SCORM, Synthesia is a mature choice, with a 3.8/5 Trustpilot score across 1,830 reviews. For short presenter ads and social video, $19 to $89 a month buys far fewer minutes than most creators need.

What do people complain about on Synthesia?

Price, credits that run out on a monthly plan, a refused refund after cancelling, slow or scripted support, and custom avatars that did not pronounce industry terms correctly.

Does Zemith have a library of stock avatars like Synthesia?

No. Zemith has no library of 125+ stock studio avatars reading a script. Ad Maker uses AI-made presenters, your own photo or a saved AI Influencer character for short 9:16 ads, and talking photos make a still speak your script.

Can Zemith dub videos like Synthesia?

For short clips, yes. Language Swap translates clips of 2 to 60 seconds into 21 languages with lip-sync and can keep the speaker's own voice in nine. Synthesia covers 140+ languages and longer videos.

Make presenter ads, dub, lip-sync and caption in one $15.99/mo workspace.

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Article by Kevin · Founder at Zemith

Founder of Zemith, the all-in-one AI workspace built for people who use GPT, Claude, Gemini, Grok and Creative Studio every day.

I spend my weeks testing model releases, pricing structures and real document, research and creative workflows across Web, iOS and Android.