AI Tools · head to head
AI21 Labs vs Devin

Devin
Software Development
Autonomous AI software engineer planning and executing code in its own environment
- From
- On request
- Rated
- -
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; Devin pricing not published; specific costs and plan tiers require signup or contact with sales
Where they differ
Only the attributes on which AI21 Labs and Devin actually diverge.
Identical on both: 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 AI21 Labs
- Jamba models
- Long context
- RAG engine
- Writing tools
- REST API
- Amazon Bedrock
- Cloud platforms
- Api support
Only in Devin
Nothing recorded that AI21 Labs does not also cover.
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 Devin
- Building and optimising production AI agents with Maestronot Devin
- Routing between models to control cost and accuracynot Devin
- Long-horizon agentic tasks needing stateful workspacesnot Devin
Devin
- Feature implementation and ticket resolution in established codebasesnot AI21 Labs
- Code migrations and refactoring at scale across repositoriesnot AI21 Labs
- Bug fixing and debugging with test-driven verificationnot AI21 Labs
- Rapid prototyping and proof-of-concept developmentnot AI21 Labs
- Repetitive implementation tasks freeing human engineers for complex designnot 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
Devin
- Pricing not published; specific costs and plan tiers require signup or contact with sales
- Cannot handle extremely difficult tasks reliably; success rate decreases with task complexity
- Requires clear, well-scoped task descriptions; ambiguous requirements reduce effectiveness
- Requires human oversight and integration into existing workflows; not fully autonomous
Pricing, plan by plan
AI21 Labs
Free- Free TrialFree
- Limited usage
- API access
- Jamba$0.2/per-million-input-tokens
- 256K context
- Hybrid architecture
Devin
On requestNo published plan breakdown. See the Devin review.
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.
Questions people ask
- Is AI21 Labs or Devin better?
- Neither clearly leads. AI21 Labs starts at Free and Devin at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, AI21 Labs or Devin?
- AI21 Labs has a free tier; the other does not. Paid plans start at Free for AI21 Labs and On request for Devin.
- Does AI21 Labs or Devin run on more platforms?
- AI21 Labs runs on Api, Cloud. Devin runs on Desktop, Windsurf integration, Web.
- Can I use AI21 Labs for free?
- Yes. AI21 Labs has a free tier, so you can try it without paying. Devin 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 Devin is typically brought in for.
- What can AI21 Labs do that Devin cannot?
- AI21 Labs covers Jamba models, Long context, RAG engine, Writing tools.
Related pages
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- AI21 Labs vs Codacy
- AI21 Labs vs DeepSource
- AI21 Labs vs Augment Code
- AI21 Labs vs Drizzle ORM
- AI21 Labs vs Flagsmith
- AI21 Labs vs Unleash
- AI21 Labs vs Baseten
- AI21 Labs vs Braintrust
- AI21 Labs vs Bun
- AI21 Labs vs Cline
- AI21 Labs vs Factory
- AI21 Labs vs Humanloop
- AI21 Labs vs Langfuse
- AI21 Labs vs LangSmith
- Devin vs Pika
- Devin vs Anthropic API
- Devin vs D-ID
- Devin vs Fathom
- Devin vs Stable Diffusion
- Devin vs Perplexity
- Devin vs Arize AI
- Devin vs Black Forest Labs
- Devin vs Cartesia
- Devin vs Deepgram
- Devin vs Helicone
- Devin vs Ideogram
- Devin vs Jasper
- Devin vs PromptLayer
- Devin vs Resemble AI
- Devin vs Together AI
- Devin vs Copy.ai
- Devin vs HeyGen
- Devin vs Cursor
- Devin vs Windsurf
- Devin vs Zed
- Devin vs Amp
- Devin vs Codacy
- Devin vs DeepSource
- Devin vs Augment Code
- Devin vs Drizzle ORM
- Devin vs Flagsmith
- Devin vs Unleash
- Devin vs Baseten
- Devin vs Braintrust
- Devin vs Bun
- Devin vs Cline
- Devin vs Factory
- Devin vs Humanloop
- Devin vs Langfuse
- Devin vs LangSmith

