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Automation Integration · head to head

CrewAI vs Letta

CrewAI logo

CrewAI

Automation Integration

The Enterprise Agent Build and Runtime for the work your business runs on

From
Free
Rated
-
Full reviewWebsite
Letta logo

Letta

Automation Integration

Machines that learn

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: CrewAI free tier limited to only 50 workflow executions per month; Letta free tier limited to 3 stateful agents
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which CrewAI and Letta actually diverge.

Attributes where CrewAI and Letta differ
AttributeCrewAILetta

Identical on both: starting price (Free), pricing model (freemium), free tier (Yes), platforms (Web), user rating (Not yet rated), category (Automation Integration).

What people use each for

The jobs each tool is most often brought in to do.

CrewAI

  • Enriching sales leads with company revenue and insights automaticallynot Letta
  • Accelerating first contact with leads from multiple systemsnot Letta
  • Automating quality assurance testing for voice agentsnot Letta
  • Generating curriculum content and instructor materials instantlynot Letta

Letta

  • Building agents with memory for continuous learningnot CrewAI
  • Enabling reflection during idle periods via sleep-computenot CrewAI
  • Managing agent context and extracting learningsnot CrewAI

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

CrewAI

  • Free tier limited to only 50 workflow executions per month
  • Enterprise pricing is not published; requires contact for quote
  • No public information about paid tier pricing between free and enterprise

Letta

  • Free tier limited to 3 stateful agents
  • Pro tier capped at 20 stateful agents
  • API Plan usage charges apply beyond base tier

Pricing, plan by plan

CrewAI

Free
  • BasicFree
    • 50 workflow executions/month
    • Visual editor and AI copilot
    • GitHub integration
  • Enterprise$null/month
    • Custom pricing upon request
    • Everything in Basic plus advanced features
    • Enterprise connectors

Letta

Free
  • FreeFree
    • Limited agents
    • Limited Letta Auto usage
    • Bring your own API keys
  • Pro$20/month
    • Weekly and monthly Letta Auto quota
    • Pay-as-you-go overage
    • Up to 20 stateful agents
  • API Plan$20/month
    • Unlimited agents
    • $0.10/active agent/month
    • $0.00015/second for tool execution
  • Teams Pro$20/month
    • Per seat pricing
    • Add teammates
    • Letta Auto quota

Which should you pick?

Choose CrewAI if

  • You want to start without paying.
CrewAI review

Choose Letta if

  • You want to start without paying.
Letta review

Questions people ask

Is CrewAI or Letta better?
Neither clearly leads. CrewAI starts at Free and Letta at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, CrewAI or Letta?
CrewAI starts at Free and Letta at Free.
Does CrewAI or Letta run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use CrewAI for free?
Both have a free tier, so you can try either at no cost before committing.
What is CrewAI best used for?
CrewAI is most often used for enriching sales leads with company revenue and insights automatically, accelerating first contact with leads from multiple systems, automating quality assurance testing for voice agents, generating curriculum content and instructor materials instantly. Of those, enriching sales leads with company revenue and insights automatically and accelerating first contact with leads from multiple systems are not what Letta is typically brought in for.

Answered from the vendors’ own pages

CrewAI: Is CrewAI free?

CrewAI offers a free Basic tier that includes 50 workflow executions per month, access to the visual editor, AI copilot, and GitHub integration. Enterprise plans with custom pricing are available for larger deployments.

Source
Letta: How much does Letta cost?

Letta offers a free tier, then Pro plan at $20/month with up to 20 stateful agents, API Plan at $20/month base plus usage charges ($0.10/active agent/month, $0.00015/second for tool execution), and Teams Pro at $20/seat/month.

Source
CrewAI: How much does CrewAI Enterprise cost?

CrewAI Enterprise pricing is custom and available upon request. Enterprise includes dedicated VPC deployment, FedRamp High compliance, SSO and RBAC, PII redaction, and dedicated support with 45-day onboarding.

Source
Letta: How many agents can I create on the free plan?

The free tier is limited to 3 stateful agents. Pro plan allows up to 20 stateful agents, while API Plan offers unlimited agents.

Source
CrewAI: Can I self-host CrewAI?

Enterprise tier customers can deploy CrewAI on their own VPC or own infrastructure in addition to CrewAI cloud deployment, but specific pricing for self-hosted options is not published.

Source
Letta: Does Letta charge for tool execution?

On the API Plan, Letta charges $0.00015 per second for tool execution. The Pro and Teams Pro plans include execution in their monthly fee.

Source
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