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AI · head to head

Copy.ai vs Synthesia

Copy.ai logo

Copy.ai

AI

AI-powered copywriting made easy

From
$29/month
Rated
-
Full reviewWebsite
Synthesia logo

Synthesia

Video Production

AI video creation with digital presenters

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Synthesia has a free tier, so it costs nothing to try first.
  • Each has a real cost: Copy.ai chat plan (lowest tier) available monthly, but Growth/Expansion/Scale plans require annual billing with no monthly option; Synthesia free plan limited to 10 minutes of video per month
  • They diverge on capability: Copy.ai covers AI copywriting, Synthesia covers AI avatars.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Copy.ai and Synthesia actually diverge.

Attributes where Copy.ai and Synthesia differ
AttributeCopy.aiSynthesia
Starting price$29/monthFree
Pricing modelusage-basedfreemium
Free tierNoYes
CategoryAIVideo Production
Founded20202017

Identical on both: platforms (Web), user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Copy.ai

  • AI copywriting
  • 90+ templates
  • Multi-language
  • Bulk generation
  • Zapier

Only in Synthesia

  • AI avatars
  • 140+ languages
  • Video templates
  • Brand customization
  • LMS integrations
  • PowerPoint

Both cover

  • API access
  • Web support
  • Api support

What people use each for

The jobs each tool is most often brought in to do.

Copy.ai

  • AI-powered copywriting and content generation for marketing and salesnot Synthesia
  • Go-to-market automation with AI workflows and copy agentsnot Synthesia

Synthesia

  • Training video creation with AI avatarsnot Copy.ai
  • Multilingual video localisation with AI dubbingnot Copy.ai
  • Enterprise video production and managementnot Copy.ai

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Copy.ai

  • Chat plan (lowest tier) available monthly, but Growth/Expansion/Scale plans require annual billing with no monthly option
  • Workflow credits system complexity requires calculating credit consumption based on workflow complexity; rates not published

Synthesia

  • Free plan limited to 10 minutes of video per month
  • Starter plan limited to 10 minutes of video per month
  • Creator plan capped at 30 minutes of video per month
  • SSO/SAML authentication restricted to Enterprise tier

Pricing, plan by plan

Copy.ai

$29/month
  • Chat$29/month
    • 5 seats
    • Unlimited words in chat
    • Unlimited chat projects
  • Growth$1000/month
    • 75 seats
    • Unlimited words in chat
    • 20,000 workflow credits per month
  • Expansion$2000/month
    • 150 seats
    • Unlimited words in chat
    • 45,000 workflow credits per month
  • Scale$3000/month
    • 200 seats
    • Unlimited words in chat
    • 75,000 workflow credits per month

Synthesia

Free
  • BasicFree
    • 1,200 credits per month
    • Up to 10 minutes of video per month
    • 9 AI avatars
  • Starter$29/month
    • 14,500 credits per year
    • Up to 120 minutes of video per year
    • 125+ AI avatars
  • Creator$89/month
    • 44,000 credits per year
    • Up to 360 minutes of video per year
    • 180+ AI avatars

Which should you pick?

Choose Copy.ai if

  • You need ai copywriting.
  • You also want 90+ templates.
Copy.ai review

Choose Synthesia if

  • You need ai avatars.
  • You want to start without paying.
  • You also want 140+ languages.
Synthesia review

Questions people ask

Is Copy.ai or Synthesia better?
Neither clearly leads. Copy.ai starts at $29/month and Synthesia at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Copy.ai or Synthesia?
Synthesia has a free tier; the other does not. Paid plans start at $29/month for Copy.ai and Free for Synthesia.
Does Copy.ai or Synthesia run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Synthesia for free?
Yes. Synthesia has a free tier, so you can try it without paying. Copy.ai starts at $29/month.
What is Copy.ai best used for?
Copy.ai is most often used for ai-powered copywriting and content generation for marketing and sales, go-to-market automation with ai workflows and copy agents. Of those, ai-powered copywriting and content generation for marketing and sales and go-to-market automation with ai workflows and copy agents are not what Synthesia is typically brought in for.
What can Copy.ai do that Synthesia cannot?
Copy.ai covers AI copywriting, 90+ templates, Multi-language, Bulk generation. Synthesia covers AI avatars, 140+ languages, Video templates, Brand customization. Both handle API access, Web support, Api support.

Answered from the vendors’ own pages

Copy.ai: How much does Copy.ai cost?

Copy.ai offers a Chat plan starting at $29/month with 5 seats and unlimited chat words. Growth ($1,000/month), Expansion ($2,000/month), and Scale ($3,000/month) plans require annual billing and include workflow credits. Enterprise custom pricing is available.

Source
Synthesia: How much does Synthesia cost?

Synthesia offers a free Basic plan with 10 minutes of video per month, Starter at $29 per month with 120 minutes per year, and Creator at $89 per month with 360 minutes per year. Annual billing provides 38% savings. Enterprise plans are available with custom pricing.

Source
Copy.ai: What is included in Copy.ai's Chat plan?

The Chat plan at $29/month ($24/month annual) includes 5 seats, unlimited words in chat, unlimited chat projects, and access to OpenAI, Anthropic, and Gemini language models.

Source
Synthesia: What is included in Synthesia's free plan?

The free Basic plan includes 1,200 credits per month (approximately 10 minutes of video), 9 AI avatars, 3 personal avatars, and access to 160+ languages and voices. No credit card is required.

Source
Copy.ai: How do Copy.ai workflow credits work?

Copy.ai uses a credit-based system where workflow complexity determines credit consumption. Growth plan includes 20,000 credits/month, Expansion includes 45,000 credits/month, and Scale includes 75,000 credits/month. Additional credits can be purchased as organizational needs expand.

Source
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