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Software · head to head

AI21 Labs vs Brex

AI21 Labs logo

AI21 Labs

Software

Enterprise language AI solutions

From
Free
Rated
-
Full reviewWebsite
Brex logo

Brex

Software

The financial stack for growing businesses

From
$29/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; Brex the free Essentials tier is limited to two legal entities
  • They diverge on capability: AI21 Labs covers Jamba models, Brex covers Corporate cards.

Where they differ

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

Attributes where AI21 Labs and Brex differ
AttributeAI21 LabsBrex
Starting priceFree$29/month
Pricing modelusage-basedfreemium
Free tierYesNo
PlatformsApi, CloudWeb, Ios, Android

Identical on both: user rating (Not yet rated), category (Unknown), founded (2017).

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 Brex

  • Corporate cards
  • Business accounts
  • Expense management
  • Bill pay
  • Travel
  • QuickBooks
  • NetSuite
  • Xero

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

Brex

  • Corporate cards with spend controls for startupsnot AI21 Labs
  • Expense management and reimbursementsnot AI21 Labs
  • Travel booking inside the spend platformnot AI21 Labs
  • Bill pay and accounting system syncnot AI21 Labs
  • Multi-entity spend management on the paid tiersnot 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

Brex

  • The free Essentials tier is limited to two legal entities
  • Premium is $12 per user per month, so cost scales with headcount using the card
  • Enterprise and Smart Card pricing is not published
  • Eligibility criteria are not stated anywhere on the pricing page, which matters for a product that extends credit

Pricing, plan by plan

AI21 Labs

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

Brex

$29/month
  • EssentialsFree
    • Corporate cards
    • Expense management
    • Bill pay
  • Premium$12/month
    • Advanced controls
    • Custom approvals
    • Travel booking

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 Brex if

  • You need corporate cards.
  • You work on Web, Ios, Android.
  • You also want business accounts.
Brex review

Questions people ask

Is AI21 Labs or Brex better?
Neither clearly leads. AI21 Labs starts at Free and Brex at $29/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, AI21 Labs or Brex?
AI21 Labs has a free tier; the other does not. Paid plans start at Free for AI21 Labs and $29/month for Brex.
Does AI21 Labs or Brex run on more platforms?
AI21 Labs runs on Api, Cloud. Brex 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. Brex starts at $29/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 Brex is typically brought in for.
What can AI21 Labs do that Brex cannot?
AI21 Labs covers Jamba models, Long context, RAG engine, Writing tools. Brex covers Corporate cards, Business accounts, Expense management, Bill pay.
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