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Software · head to head

AI21 Labs vs ProofHub

AI21 Labs logo

AI21 Labs

Software

Enterprise language AI solutions

From
Free
Rated
-
Full reviewWebsite
ProofHub logo

ProofHub

Software

All-in-one project management and team collaboration

From
On request
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; ProofHub the Ultimate Control plan advertises $89 a month for the first 3 months and then charges $135, so the headline is an introductory rate
  • They diverge on capability: AI21 Labs covers Jamba models, ProofHub covers Tasks.

Where they differ

Only the attributes on which AI21 Labs and ProofHub actually diverge.

Attributes where AI21 Labs and ProofHub differ
AttributeAI21 LabsProofHub
Starting priceFreeOn request
Pricing modelusage-basedsubscription
Free tierYesNo
PlatformsApi, CloudWeb, Ios, Android
Founded20172011

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 ProofHub

  • Tasks
  • Discussions
  • Proofing
  • Time tracking
  • Gantt charts
  • Slack
  • Google Drive
  • Dropbox

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 ProofHub
  • Building and optimising production AI agents with Maestronot ProofHub
  • Routing between models to control cost and accuracynot ProofHub
  • Long-horizon agentic tasks needing stateful workspacesnot ProofHub

ProofHub

  • Project management with unlimited users on a flat monthly feenot AI21 Labs
  • Proofing and reviewing files alongside task and discussion trackingnot 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

ProofHub

  • The Ultimate Control plan advertises $89 a month for the first 3 months and then charges $135, so the headline is an introductory rate
  • The Essential plan caps projects at 40 and storage at 15 GB
  • Storage is 100 GB even on the higher plan, which is low for a tool holding project files
  • There is no free tier, and the entry price is a flat $45 a month billed annually

Pricing, plan by plan

AI21 Labs

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

ProofHub

On request
  • Essential$45/month
    • 40 projects
    • Unlimited users
    • Core features
  • Ultimate Control$89/month
    • Unlimited projects
    • Advanced features
    • White labeling

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 ProofHub if

  • You need tasks.
  • You work on Web, Ios, Android.
  • You also want discussions.
ProofHub review

Questions people ask

Is AI21 Labs or ProofHub better?
Neither clearly leads. AI21 Labs starts at Free and ProofHub at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, AI21 Labs or ProofHub?
AI21 Labs has a free tier; the other does not. Paid plans start at Free for AI21 Labs and On request for ProofHub.
Does AI21 Labs or ProofHub run on more platforms?
AI21 Labs runs on Api, Cloud. ProofHub runs on Web, Ios, Android.
Can I use AI21 Labs for free?
Yes. AI21 Labs has a free tier, so you can try it without paying. ProofHub starts at On request.
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 ProofHub is typically brought in for.
What can AI21 Labs do that ProofHub cannot?
AI21 Labs covers Jamba models, Long context, RAG engine, Writing tools. ProofHub covers Tasks, Discussions, Proofing, Time tracking.
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