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Cryptocurrency & Blockchain · head to head

Alchemy vs HeyGen

Alchemy logo

Alchemy

Cryptocurrency & Blockchain

The web3 development platform

From
Free
Rated
-
Full reviewWebsite
HeyGen logo

HeyGen

AI Tools

AI video generation with realistic avatars

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Alchemy the free tier is capped at 30M compute units a month and 25 requests per second; HeyGen avatar movements feel unnatural in longer videos and repetitive with limited emotional expression, appearing stiff and robotic after 60 seconds
  • They diverge on capability: Alchemy covers Node APIs, HeyGen covers AI avatars.

Where they differ

Only the attributes on which Alchemy and HeyGen actually diverge.

Attributes where Alchemy and HeyGen differ
AttributeAlchemyHeyGen
Pricing modelfreemiumUnknown
PlatformsApi, WebWeb
CategoryCryptocurrency & BlockchainAI Tools
Founded20172020

Identical on both: starting price (Free), free tier (Yes), 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 Alchemy

  • Node APIs
  • Enhanced APIs
  • NFT API
  • Webhooks
  • Mempool
  • 35+ chains
  • SDKs

Only in HeyGen

  • AI avatars
  • Text-to-video
  • Voice cloning
  • Video translation
  • API access
  • Zapier
  • CRM integrations

Both cover

  • Api support
  • Web support

What people use each for

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

Alchemy

  • Hosted blockchain node access across mainnets and testnetsnot HeyGen
  • Backing a production web3 application without running nodesnot HeyGen
  • Webhook-driven notifications for on-chain eventsnot HeyGen
  • Scaling read throughput beyond self-hosted node limitsnot HeyGen

HeyGen

  • ai tools managementnot Alchemy
  • Workflow automationnot Alchemy
  • Reportingnot Alchemy

Where each one falls short

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

Alchemy

  • The free tier is capped at 30M compute units a month and 25 requests per second
  • Free accounts are limited to 5 apps and 5 webhooks
  • Beyond the free allowance it is $0.45 per 1M compute units for the first 300M a month
  • Request cost varies by call complexity, from around 10 compute units to over 100, so spend is hard to predict from request counts alone
  • Signed SLAs and priority support require an Enterprise contract

HeyGen

  • Avatar movements feel unnatural in longer videos and repetitive with limited emotional expression, appearing stiff and robotic after 60 seconds
  • Cannot reliably choreograph natural interactions like walking through a room, using devices, or drinking from objects
  • Billing gap between marketed unlimited plans and actual credit consumption is highest complaint with lost credits on failed renders
  • Inconsistent lip sync and voice quality with slow processing and occasional moderation blocks without explanation
  • Customer support described as non-existent with no way to complain or reach a human representative

Pricing, plan by plan

Alchemy

Free
  • FreeFree
    • 300M compute units
    • 5 apps
    • Core APIs
  • Growth$49/month
    • 400M compute units
    • 15 apps
    • Enhanced APIs
  • Scale$199/month
    • 1B compute units
    • Unlimited apps
    • Premium support

HeyGen

Free
  • FreeFree
    • 3 videos
    • With watermark
  • Creator$29/month
    • Unlimited videos
    • 200 monthly credits
  • Pro$99/month
    • 2,000 credits
    • Advanced features

Which should you pick?

Choose Alchemy if

  • You need node apis.
  • You want to start without paying.
  • You work on Api, Web.
  • You also want enhanced apis.
Alchemy review

Choose HeyGen if

  • You need ai avatars.
  • You want to start without paying.
  • You also want text-to-video.
HeyGen review

Questions people ask

Is Alchemy or HeyGen better?
Neither clearly leads. Alchemy starts at Free and HeyGen at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Alchemy or HeyGen?
Alchemy starts at Free and HeyGen at Free.
Does Alchemy or HeyGen run on more platforms?
Alchemy runs on Api, Web. HeyGen runs on Web.
Can I use Alchemy for free?
Both have a free tier, so you can try either at no cost before committing.
What is Alchemy best used for?
Alchemy is most often used for hosted blockchain node access across mainnets and testnets, backing a production web3 application without running nodes, webhook-driven notifications for on-chain events, scaling read throughput beyond self-hosted node limits. Of those, hosted blockchain node access across mainnets and testnets and backing a production web3 application without running nodes are not what HeyGen is typically brought in for.
What can Alchemy do that HeyGen cannot?
Alchemy covers Node APIs, Enhanced APIs, NFT API, Webhooks. HeyGen covers AI avatars, Text-to-video, Voice cloning, Video translation. Both handle Api support, Web support.

Answered from the vendors’ own pages

HeyGen: What are HeyGen's pricing plans?

HeyGen offers Free ($0, 3 videos/month with watermark), Creator ($29/month, unlimited videos + 200 monthly credits), Pro ($99/month, more credits), Business ($149/month + $20/seat, 4K rendering), and custom Enterprise pricing.

Source
HeyGen: How does HeyGen's credit system work?

HeyGen uses a credit-based system where Avatar IV video costs 20 credits per minute, video translation costs 5-10 credits per minute. Creator includes 200 credits/month, Pro includes 2,000 credits/month, and Business shares 1,000 credits across the workspace.

Source
HeyGen: What is Digital Twin and how much does it cost?

Digital Twin creates a custom avatar from 2 minutes of recorded footage. Additional avatar slots beyond the default cost $29/month each.

Source
HeyGen: How many languages can HeyGen translate videos into?

HeyGen can translate videos into 175+ languages with AI lip sync, making it useful for global content distribution and localization.

Source
HeyGen: What do users say about HeyGen's ratings?

HeyGen has 4.8/5 on G2 across more than 1,000 reviews and 4.7/5 on Capterra across 313 verified reviews as of June 2026, with avatar quality scoring 9.2/10.

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