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Software · head to head

AI21 Labs vs Fathom Analytics

AI21 Labs logo

AI21 Labs

Software

Enterprise language AI solutions

From
Free
Rated
-
Full reviewWebsite
Fathom Analytics logo

Fathom Analytics

Software

Website analytics made simple

From
$14/month
Rated
-
Full reviewWebsite

The short version

  • Only AI21 Labs has a free tier, so it costs nothing to try first.
  • Each has a real cost: AI21 Labs the free allowance is $10 of credit lasting 7 days rather than an ongoing free tier; Fathom Analytics there is no free tier, only a 7 day trial
  • They diverge on capability: AI21 Labs covers Jamba models, Fathom Analytics covers Page view tracking.

Where they differ

Only the attributes on which AI21 Labs and Fathom Analytics actually diverge.

Attributes where AI21 Labs and Fathom Analytics differ
AttributeAI21 LabsFathom Analytics
Starting priceFree$14/month
Pricing modelusage-basedsubscription
Free tierYesNo
PlatformsApi, CloudWeb
Founded20172014

Identical on both: user rating (Not yet rated), category (Unknown).

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 AI21 Labs

  • Jamba models
  • Long context
  • RAG engine
  • Writing tools
  • REST API
  • Amazon Bedrock
  • Cloud platforms
  • Api support

Only in Fathom Analytics

  • Page view tracking
  • Goal tracking
  • Real-time analytics
  • Referrer tracking
  • Privacy-focused
  • GDPR compliant
  • Cloud deployment
  • Web support

What people use each for

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

AI21 Labs

  • Running long-context tasks on the Jamba model familynot Fathom Analytics
  • Building and optimising production AI agents with Maestronot Fathom Analytics
  • Routing between models to control cost and accuracynot Fathom Analytics
  • Long-horizon agentic tasks needing stateful workspacesnot Fathom Analytics

Fathom Analytics

  • Privacy-focused web analytics without cookie bannersnot AI21 Labs
  • A lightweight Google Analytics replacementnot AI21 Labs
  • Tracking many sites from one accountnot AI21 Labs
  • Long-term historical reporting while subscribednot AI21 Labs

Where each one falls short

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

AI21 Labs

  • The free allowance is $10 of credit lasting 7 days rather than an ongoing free tier
  • Jamba Large is $2 per million input tokens and $8 per million output, so output-heavy work costs four times as much as input
  • Volume discounts, private cloud hosting and higher rate limits require a custom plan
  • Standard rate limits are not published

Fathom Analytics

  • There is no free tier, only a 7 day trial
  • Priced on pageviews, from $45 a month at the 500,000 pageview level
  • Custom events count against the pageview allowance rather than being tracked separately
  • Site allowances come in packs, with additional 50-site packs at $10 a month
  • Data is retained forever only while the subscription is active

Pricing, plan by plan

AI21 Labs

Free
  • Free TrialFree
    • Limited usage
    • API access
  • Jamba$0.2/per-million-input-tokens
    • 256K context
    • Hybrid architecture

Fathom Analytics

$14/month
  • Starter$14/month
    • Unlimited page views
    • 1 site
    • Real-time analytics

Which should you pick?

Choose AI21 Labs if

  • You need jamba models.
  • You want to start without paying.
  • You work on Api, Cloud.
  • You also want long context.
AI21 Labs review

Choose Fathom Analytics if

  • You need page view tracking.
  • You also want goal tracking.
Fathom Analytics review

Questions people ask

Is AI21 Labs or Fathom Analytics better?
Neither clearly leads. AI21 Labs starts at Free and Fathom Analytics at $14/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, AI21 Labs or Fathom Analytics?
AI21 Labs has a free tier; the other does not. Paid plans start at Free for AI21 Labs and $14/month for Fathom Analytics.
Does AI21 Labs or Fathom Analytics run on more platforms?
AI21 Labs runs on Api, Cloud. Fathom Analytics runs on Web.
Can I use AI21 Labs for free?
Yes. AI21 Labs has a free tier, so you can try it without paying. Fathom Analytics starts at $14/month.
What is AI21 Labs best used for?
AI21 Labs is most often used for running long-context tasks on the jamba model family, building and optimising production ai agents with maestro, routing between models to control cost and accuracy, long-horizon agentic tasks needing stateful workspaces. Of those, running long-context tasks on the jamba model family and building and optimising production ai agents with maestro are not what Fathom Analytics is typically brought in for.
What can AI21 Labs do that Fathom Analytics cannot?
AI21 Labs covers Jamba models, Long context, RAG engine, Writing tools. Fathom Analytics covers Page view tracking, Goal tracking, Real-time analytics, Referrer tracking.
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