Softwr

Automation Integration · head to head

Letta vs Mage AI

Letta logo

Letta

Automation Integration

Machines that learn

From
Free
Rated
-
Full reviewWebsite
Mage AI logo

Mage AI

Automation Integration

Data pipeline platform with AI-generated workflows and governance

From
$100/month
Rated
-
Full reviewWebsite

The short version

  • Only Letta has a free tier, so it costs nothing to try first.
  • Each has a real cost: Letta free tier limited to 3 stateful agents; Mage AI usage-based pricing lacks transparency for cost forecasting
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Letta and Mage AI actually diverge.

Attributes where Letta and Mage AI differ
AttributeLettaMage AI
Starting priceFree$100/month
Pricing modelfreemiumUsage-based cloud platform
Free tierYesNo
PlatformsWebCloud, Hybrid, Private Cloud, On-Premises

Identical on both: user rating (Not yet rated), category (Automation Integration).

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 Letta

Nothing recorded that Mage AI does not also cover.

Only in Mage AI

  • AI-generated workflows
  • Pipeline building
  • Data validation
  • Workflow orchestration
  • Automatic recovery
  • Reusable components
  • Governance controls

What people use each for

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

Letta

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

Mage AI

  • Building and orchestrating data pipelines with visual interfacenot Letta
  • Automating ETL workflows with AI assistancenot Letta
  • Validating data quality across transformationsnot Letta
  • Distributing transformed data to multiple destinationsnot Letta

Where each one falls short

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

Letta

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

Mage AI

  • Usage-based pricing lacks transparency for cost forecasting
  • Limited standalone pricing details on website
  • Requires contact for enterprise deployment options
  • Smaller ecosystem compared to established competitors
  • May require significant customization for complex data models

Pricing, plan by plan

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

Mage AI

$100/month
  • Cloud$100/month
    • 1 development environment
    • Unlimited users
    • Usage-based infrastructure pricing
  • Hybrid Cloud$null/custom
    • Private data processing
    • Custom infrastructure
    • Contact sales
  • Private Cloud$null/custom
    • Complete isolation
    • Full infrastructure control
    • Contact sales
  • On-Premises$null/custom
    • Full local control
    • Enterprise deployment
    • Contact sales

Which should you pick?

Choose Letta if

  • You want to start without paying.
Letta review

Choose Mage AI if

  • You need ai-generated workflows.
  • You work on Cloud, Hybrid, Private Cloud, On-Premises.
  • You also want pipeline building.
Mage AI review

Questions people ask

Is Letta or Mage AI better?
Neither clearly leads. Letta starts at Free and Mage AI at $100/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Letta or Mage AI?
Letta has a free tier; the other does not. Paid plans start at Free for Letta and $100/month for Mage AI.
Does Letta or Mage AI run on more platforms?
Letta runs on Web. Mage AI runs on Cloud, Hybrid, Private Cloud, On-Premises.
Can I use Letta for free?
Yes. Letta has a free tier, so you can try it without paying. Mage AI starts at $100/month.
What is Letta best used for?
Letta is most often used for building agents with memory for continuous learning, enabling reflection during idle periods via sleep-compute, managing agent context and extracting learnings. Of those, building agents with memory for continuous learning and enabling reflection during idle periods via sleep-compute are not what Mage AI is typically brought in for.
What can Letta do that Mage AI cannot?
Mage AI covers AI-generated workflows, Pipeline building, Data validation, Workflow orchestration.

Answered from the vendors’ own pages

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
Mage AI: What is the starting price for Mage Cloud?

Cloud plan starts at $100/month for one development environment with unlimited users, plus usage-based compute charges.

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
Mage AI: How is compute usage billed on Mage?

CPU is charged at $0.50 per hour and RAM at $0.50 per 4GB per hour of utilization.

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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