Softwr

Automation Integration · head to head

Celigo vs Letta

Celigo logo

Celigo

Automation Integration

The iPaaS platform for mid-market and enterprise

From
$400/month
Rated
-
Full reviewWebsite
Letta logo

Letta

Automation Integration

Machines that learn

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Letta has a free tier, so it costs nothing to try first.
  • Each has a real cost: Celigo prices are not published on any of the three editions; 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 Celigo and Letta actually diverge.

Attributes where Celigo and Letta differ
AttributeCeligoLetta
Starting price$400/monthFree
Pricing modelsubscriptionfreemium
Free tierNoYes
PlatformsWeb, MobileWeb
Founded2008Unknown

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 Celigo

  • App integration
  • Process automation
  • Master data management
  • API management
  • Workflow builder
  • Error handling
  • Analytics
  • 800+ apps

Only in Letta

Nothing recorded that Celigo does not also cover.

What people use each for

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

Celigo

  • Integrating NetSuite with ecommerce and CRM systemsnot Letta
  • Prebuilt integration templates between common business applicationsnot Letta
  • Building custom flows between internal systemsnot Letta
  • Governance and auditability over integrations on the higher editionsnot Letta

Letta

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

Where each one falls short

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

Celigo

  • Prices are not published on any of the three editions
  • Billed on endpoints and flows, so the cost is driven by how many systems you connect rather than by volume through them
  • API Builder, lookup caching and a sandbox all require the Professional edition
  • Single sign-on is optional on Standard and included from Professional up
  • Unlimited endpoints and the full governance features are Enterprise only

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

Celigo

$400/month
  • Growth$400/month
    • 50 integrations
    • Basic support
  • Scale$1200/month
    • Unlimited integrations
    • Priority support
  • Enterprise$3000/month
    • Custom solutions
    • Dedicated support

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 Celigo if

  • You need app integration.
  • You work on Web, Mobile.
  • You also want process automation.
Celigo review

Choose Letta if

  • You want to start without paying.
Letta review

Questions people ask

Is Celigo or Letta better?
Neither clearly leads. Celigo starts at $400/month and Letta at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Celigo or Letta?
Letta has a free tier; the other does not. Paid plans start at $400/month for Celigo and Free for Letta.
Does Celigo or Letta run on more platforms?
Celigo runs on Web, Mobile. Letta runs on Web.
Can I use Letta for free?
Yes. Letta has a free tier, so you can try it without paying. Celigo starts at $400/month.
What is Celigo best used for?
Celigo is most often used for integrating netsuite with ecommerce and crm systems, prebuilt integration templates between common business applications, building custom flows between internal systems, governance and auditability over integrations on the higher editions. Of those, integrating netsuite with ecommerce and crm systems and prebuilt integration templates between common business applications are not what Letta is typically brought in for.
What can Celigo do that Letta cannot?
Celigo covers App integration, Process automation, Master data management, API management.

Answered from the vendors’ own pages

Celigo: How much does Celigo cost?

Celigo pricing is not publicly disclosed; the vendor requires direct contact with sales to obtain pricing quotes based on your endpoint and workflow requirements.

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
Celigo: What is Celigo's pricing model?

Celigo uses a flat-rate subscription model based on endpoints and flows, not per-transaction costs; customers must contact sales for actual pricing for each tier.

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
Celigo: Is there a free trial for Celigo?

Yes, Celigo offers a 30-day free trial with unlimited access to the platform; no credit card is required to start the trial.

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
Celigo: What are the Celigo pricing tiers?

Celigo offers Standard, Professional, and Enterprise editions; specific pricing for each is not published and requires sales contact, with Enterprise including unlimited endpoints and premium support.

Source
Share

Related pages

More on Celigo

More on Letta

Keep looking

Other head to heads