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Crypto · head to head

Alchemy vs Replicate

Alchemy logo

Alchemy

Crypto

The web3 development platform

From
Free
Rated
-
Full reviewWebsite
Replicate logo

Replicate

AI

Run AI models in the cloud

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; Replicate private model deployments are billed for all the time instances are online, including setup and idle time, not only for processing
  • They diverge on capability: Alchemy covers Node APIs, Replicate covers Model hosting.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Alchemy and Replicate actually diverge.

Attributes where Alchemy and Replicate differ
AttributeAlchemyReplicate
Pricing modelfreemiumusage-based
PlatformsApi, WebApi, Cloud
CategoryCryptoAI
Founded20172019

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
  • Web support

Only in Replicate

  • Model hosting
  • Simple API
  • Auto-scaling
  • Custom models
  • REST API
  • Python client
  • JavaScript client
  • Cloud support

Both cover

  • Api 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 Replicate
  • Backing a production web3 application without running nodesnot Replicate
  • Webhook-driven notifications for on-chain eventsnot Replicate
  • Scaling read throughput beyond self-hosted node limitsnot Replicate

Replicate

  • Running open source machine learning models through a hosted API without managing GPUsnot Alchemy
  • Deploying and serving a custom or fine tuned model on rented GPU hardwarenot Alchemy
  • Per second billed batch image, video and language model inferencenot 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

Replicate

  • Private model deployments are billed for all the time instances are online, including setup and idle time, not only for processing
  • Multi-GPU A100, H100, H200 and L40S capacity beyond the listed configurations is only available with a committed spend contract
  • The pricing page publishes no free tier allowance

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

Replicate

Free
  • Pay-as-you-go$null/usage
    • Billed by execution time for public models
    • CPU Small: $0.000025/second ($0.09/hour)
    • 8x Nvidia A100 GPUs: $0.0112/second ($40.32/hour)
  • Enterprise$null/custom
    • Dedicated account manager
    • Priority support
    • Higher GPU limits

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 Replicate if

  • You need model hosting.
  • You want to start without paying.
  • You work on Api, Cloud.
  • You also want simple api.
Replicate review

Questions people ask

Is Alchemy or Replicate better?
Neither clearly leads. Alchemy starts at Free and Replicate at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Alchemy or Replicate?
Alchemy starts at Free and Replicate at Free.
Does Alchemy or Replicate run on more platforms?
Alchemy runs on Api, Web. Replicate runs on Api, Cloud.
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 Replicate is typically brought in for.
What can Alchemy do that Replicate cannot?
Alchemy covers Node APIs, Enhanced APIs, NFT API, Webhooks. Replicate covers Model hosting, Simple API, Auto-scaling, Custom models. Both handle Api support.

Answered from the vendors’ own pages

Alchemy: How much does Alchemy cost?

Alchemy offers a free tier with 30M compute units monthly, and a pay-as-you-go model at $0.45 per 1M compute units for the first 300M monthly, then $0.40 per 1M compute units thereafter. Enterprise plans with custom pricing and volume discounts are available for high-volume users.

Source
Replicate: How much does Replicate cost?

Replicate uses pay-as-you-go pricing based on model execution time and compute type. Costs range from $0.09/hour for CPU (Small) to $40.32/hour for 8x Nvidia A100 GPUs. Some models charge per input/output tokens instead of time.

Source
Alchemy: Does Alchemy have a free version?

Yes, Alchemy's Free plan provides 30M compute units monthly at no cost, with access to all mainnets and testnets, up to 15 requests per second, and support for 5 apps and 5 webhooks.

Source
Replicate: Does Replicate offer a free tier?

Yes, Replicate is free to start with pay-as-you-go pricing. There are no subscription tiers or minimum commitments; you pay only for what you use.

Source
Alchemy: What is the difference between Alchemy's Free and Pay As You Go plans?

The Free plan offers 30M compute units monthly at no cost with 15 requests per second throughput and supports up to 5 apps. Pay As You Go provides higher throughput (300 requests per second), more apps (30) and webhooks (100), and premium endpoints with priority support, charged at $0.45 per 1M compute units.

Source
Replicate: What is the difference between public and private models?

Public models are billed by execution time. Private models are billed for all instance uptime including setup, idle, and active processing time, except for fast-booting fine-tunes which are billed only during active processing.

Source
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