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Automation Integration · head to head

Airbyte vs Letta

Airbyte logo

Airbyte

Automation Integration

The open-source ELT platform

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: Airbyte the self-managed open source Core edition has no SSO or RBAC, no multiple workspaces, no row filtering or encryption, and no monitoring integrations; Letta free tier limited to 3 stateful agents
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Airbyte and Letta actually diverge.

Attributes where Airbyte and Letta differ
AttributeAirbyteLetta
Pricing modelsubscriptionfreemium
PlatformsWeb, Self-hostedWeb
Founded2020Unknown

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

  • Data replication
  • Schema detection
  • ELT pipelines
  • Real-time sync
  • Data transformation
  • Monitoring
  • Custom connectors
  • 300+ connectors

Only in Letta

Nothing recorded that Airbyte does not also cover.

What people use each for

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

Airbyte

  • Data integrationnot Letta
  • ETL operationsnot Letta
  • API data synchronizationnot Letta
  • Data warehouse populationnot Letta
  • Real-time data replicationnot Letta

Letta

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

Where each one falls short

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

Airbyte

  • The self-managed open source Core edition has no SSO or RBAC, no multiple workspaces, no row filtering or encryption, and no monitoring integrations
  • Sync frequency on Core is limited compared with the managed tiers, which offer 15 minute syncs
  • Support on the free tier is community and AI only; premium support requires Pro or Enterprise
  • The free Agents plan stops at 1,000 agent operations a month and pauses capacity until the next month once hit
  • Agent overages are billed per operation at $0.004 to $0.005 once past the plan allowance

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

Airbyte

Free
  • FreeFree
    • 1,000 Agent Operations monthly
    • Single user access
    • API and MCP access
  • Individual$29/month
    • 5,000 Agent Operations monthly
    • Hourly Context Store refresh
    • Standard and AI support
  • Team$299/month
    • 10,000 Agent Operations monthly
    • Parallel workflow execution
    • Multiple users

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 Airbyte if

  • You need data replication.
  • You want to start without paying.
  • You work on Web, Self-hosted.
  • You also want schema detection.
Airbyte review

Choose Letta if

  • You want to start without paying.
Letta review

Questions people ask

Is Airbyte or Letta better?
Neither clearly leads. Airbyte 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, Airbyte or Letta?
Airbyte starts at Free and Letta at Free.
Does Airbyte or Letta run on more platforms?
Airbyte runs on Web, Self-hosted. Letta runs on Web.
Can I use Airbyte for free?
Both have a free tier, so you can try either at no cost before committing.
What is Airbyte best used for?
Airbyte is most often used for data integration, etl operations, api data synchronization, data warehouse population. Of those, data integration and etl operations are not what Letta is typically brought in for.
What can Airbyte do that Letta cannot?
Airbyte covers Data replication, Schema detection, ELT pipelines, Real-time sync.

Answered from the vendors’ own pages

Airbyte: Is Airbyte free to use?

Yes, Airbyte offers a free tier with 1,000 Agent Operations monthly, single user access, API and MCP support, and community/AI assistance.

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
Airbyte: What does the Team plan include?

The Team plan costs $299/month and includes 10,000 Agent Operations monthly, parallel workflow execution, multiple users, standard and AI support, with overages charged at $0.005 per AO.

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
Airbyte: What happens if I exceed my monthly Agent Operations limit?

Overages are charged at $0.004 per AO on the Individual plan and $0.005 per AO on the Team plan, allowing you to exceed your quota as needed.

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
Airbyte: Does Airbyte offer data replication pricing?

Yes. Airbyte Data Replication starts at $10/month on the Standard plan with 600+ connectors. Pro and Enterprise plans use custom capacity-based pricing with Data Workers and dedicated support.

Source
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