Softwr

Software · head to head

AI21 Labs vs Cursor

AI21 Labs logo

AI21 Labs

Software

Enterprise language AI solutions

From
Free
Rated
-
Full reviewWebsite
Cursor logo

Cursor

Software

The AI-first code editor

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: AI21 Labs the free allowance is $10 of credit lasting 7 days rather than an ongoing free tier; Cursor cannot work fully offline; AI features require internet connection
  • They diverge on capability: AI21 Labs covers Jamba models, Cursor covers AI code completion.

Where they differ

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

Attributes where AI21 Labs and Cursor differ
AttributeAI21 LabsCursor
Pricing modelusage-basedUnknown
PlatformsApi, CloudWindows, Macos, Linux
Founded20172022

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

  • AI code completion
  • Natural language editing
  • Codebase chat
  • Multi-file editing
  • Code generation
  • Bug fixing assistance
  • Refactoring suggestions
  • AI pair programming

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

Cursor

  • AI-assisted codingnot AI21 Labs
  • Code generationnot AI21 Labs
  • Bug fixingnot AI21 Labs
  • Refactoringnot AI21 Labs
  • Learning new codebasesnot AI21 Labs
  • Rapid prototypingnot 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

Cursor

  • Cannot work fully offline; AI features require internet connection
  • Local models require requests to route through Cursor's backend, not true localhost support
  • Free tier capped at 2,000 completions per month
  • Codebase indexing uploads code chunks to compute embeddings, with file caching handled server-side

Pricing, plan by plan

AI21 Labs

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

Cursor

Free
  • HobbyFree
    • 2,000 completions/month
    • 50 slow premium requests
    • Basic autocomplete
  • Pro$20/month
    • Unlimited completions
    • 500 fast premium requests
    • Composer multi-file editor
  • Pro+$60/month
    • 3x Pro limits on Agent requests
    • Priority feature access
  • Teams Standard$40/user/month
    • All Individual Pro features
    • Centralized billing
    • SAML/OIDC SSO

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 Cursor if

  • You need ai code completion.
  • You want to start without paying.
  • You work on Windows, Macos, Linux.
  • You also want natural language editing.
Cursor review

Questions people ask

Is AI21 Labs or Cursor better?
Neither clearly leads. AI21 Labs starts at Free and Cursor at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, AI21 Labs or Cursor?
AI21 Labs starts at Free and Cursor at Free.
Does AI21 Labs or Cursor run on more platforms?
AI21 Labs runs on Api, Cloud. Cursor runs on Windows, Macos, Linux.
Can I use AI21 Labs for free?
Both have a free tier, so you can try either at no cost before committing.
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 Cursor is typically brought in for.
What can AI21 Labs do that Cursor cannot?
AI21 Labs covers Jamba models, Long context, RAG engine, Writing tools. Cursor covers AI code completion, Natural language editing, Codebase chat, Multi-file editing.

Answered from the vendors’ own pages

Cursor: What's included in Cursor's free tier and what are its limits?

The free Hobby plan provides 2,000 completions per month and 50 slow premium requests, with access to basic autocomplete features. Codebase-wide indexing and the Composer multi-file editor are not available on the free plan.

Source
Cursor: Does Cursor require an internet connection to edit code?

While Cursor can open and edit files locally, its AI features including autocomplete, chat, agents, and codebase-aware reasoning require internet access to cloud-hosted models.

Source
Cursor: Can I use Cursor with local models running on my machine?

Cursor can integrate with local models, but requests still route through Cursor's backend for prompt building. True localhost mode without external endpoints is not supported. The paid plan ($20+/month) is required to use local models.

Source
Cursor: What privacy controls does Cursor offer?

Cursor offers Privacy Mode (enabled on paid Team plans) which prevents customer data from being used for model training, with zero data retention agreements with all AI providers. When disabled, Cursor may use codebase data to improve features.

Source
Cursor: What are the differences between Pro and Pro+ plans?

Pro ($20/month) includes unlimited completions and 500 fast premium requests, while Pro+ ($60/month) provides 3x those request limits, priority feature access, and extended Agent capabilities.

Source
Cursor: Does Cursor support SSO and on which plan?

SSO with SAML/OIDC is included on Teams Standard ($40/user/month) and higher plans, with full team administration and audit logs.

Source
Share

Related pages

More on AI21 Labs

More on Cursor

Keep looking

Other head to heads