Is AI21 Labs or DeepInfra better?

Neither clearly leads. AI21 Labs starts at Free and DeepInfra at $0.08/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, AI21 Labs or DeepInfra?

AI21 Labs has a free tier; the other does not. Paid plans start at Free for AI21 Labs and $0.08/month for DeepInfra.

Does AI21 Labs or DeepInfra run on more platforms?

AI21 Labs runs on Api, Cloud. DeepInfra runs on web, api.

Can I use AI21 Labs for free?

Yes. AI21 Labs has a free tier, so you can try it without paying. DeepInfra starts at $0.08/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 DeepInfra is typically brought in for.

What can AI21 Labs do that DeepInfra cannot?

AI21 Labs covers Jamba models, Long context, RAG engine, Writing tools. DeepInfra covers Open model hosting, Pay-per-token pricing, Long context support, DeepCluster.

Software · head to head

AI21 Labs vs DeepInfra

AI21 Labs

Software

Enterprise language AI solutions

From: Free
Rated: -

Full review Website

DeepInfra

Software

Low-cost cloud API for running open-source AI models

From: $0.08/month
Rated: -

Full review Website

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; DeepInfra focuses on inference hosting rather than fine-tuning or full training pipelines that competitors like Fireworks AI offer.
They diverge on capability: AI21 Labs covers Jamba models, DeepInfra covers Open model hosting.

Where they differ

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

Attributes where AI21 Labs and DeepInfra differ
Attribute	AI21 Labs	DeepInfra
Starting price	Free	$0.08/month
Free tier	Yes	No
Platforms	Api, Cloud	web, api
Founded	2017	Unknown

Identical on both: pricing model (usage-based), 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 DeepInfra

Open model hosting
Pay-per-token pricing
Long context support
DeepCluster
Zero retention policy
Real-time metrics

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

DeepInfra

Running open-source LLM inference without managing GPUsnot AI21 Labs
Serving speech and image generation models via APInot AI21 Labs
Cost-sensitive production inference at scalenot AI21 Labs
Reserved GPU capacity via DeepCluster for steady workloadsnot 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

DeepInfra

Focuses on inference hosting rather than fine-tuning or full training pipelines that competitors like Fireworks AI offer.
Model selection is limited to what DeepInfra chooses to host, unlike self-managed platforms.
No published free tier; usage is billed from the first token.

Pricing, plan by plan

AI21 Labs

Free

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

DeepInfra

$0.08/month

Pay-as-you-go$undefined/mo
- Per-model token pricing from $0.08 to $2.85 per million input tokens
- No long-term contract
DeepCluster$1.98/month
- Dedicated NVIDIA B300 GPU clusters at $1.98/GPU-hour

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 DeepInfra if

You need open model hosting.
You work on web, api.
You also want pay-per-token pricing.

DeepInfra review

Questions people ask

Is AI21 Labs or DeepInfra better?: Neither clearly leads. AI21 Labs starts at Free and DeepInfra at $0.08/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, AI21 Labs or DeepInfra?: AI21 Labs has a free tier; the other does not. Paid plans start at Free for AI21 Labs and $0.08/month for DeepInfra.
Does AI21 Labs or DeepInfra run on more platforms?: AI21 Labs runs on Api, Cloud. DeepInfra runs on web, api.
Can I use AI21 Labs for free?: Yes. AI21 Labs has a free tier, so you can try it without paying. DeepInfra starts at $0.08/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 DeepInfra is typically brought in for.
What can AI21 Labs do that DeepInfra cannot?: AI21 Labs covers Jamba models, Long context, RAG engine, Writing tools. DeepInfra covers Open model hosting, Pay-per-token pricing, Long context support, DeepCluster.

Answered from the vendors’ own pages

DeepInfra: Is there a free tier on DeepInfra?

No free tier is published; usage is billed pay-as-you-go from the first token, though a credit card or pre-payment is required before you can send requests.

Source

DeepInfra: How is usage priced?

Language models are billed per million input/output tokens, other models by inference execution time, and audio models per minute of audio processed, with no minimum commitment.

Source

DeepInfra: What are the Standard, Priority, and Flex tiers?

Standard is default best-effort pricing at 1x, Priority costs 1.5x for faster time-to-first-token during peak demand, and Flex costs 0.8x for non-production or asynchronous workloads.

Source

DeepInfra: How does billing scale with spend?

Accounts advance through usage tiers as cumulative payments cross $20, $100, $500, $2,000, and $10,000 thresholds, with invoices generated monthly or at each threshold.

Source

DeepInfra: Is there a limit on concurrent requests?

Yes, accounts are limited to 200 concurrent requests by default, though spending limits can also be configured to prevent unexpected charges.

Source

AI21 Labs vs DeepInfra

AI21 Labs

DeepInfra

The short version

Where they differ

What each one covers

Only in AI21 Labs

Only in DeepInfra

What people use each for

AI21 Labs

DeepInfra

Where each one falls short

AI21 Labs

DeepInfra

Pricing, plan by plan

AI21 Labs

DeepInfra

Which should you pick?

Choose AI21 Labs if

Choose DeepInfra if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on AI21 Labs

More on DeepInfra

Keep looking

Other head to heads