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Software · head to head

Letta vs Parabola

L

Letta

Software

Machines that learn

From
On request
Rated
-
Full reviewWebsite
Parabola logo

Parabola

Software

Visual flow automation for modern teams

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Parabola has a free tier, so it costs nothing to try first.
  • Each has a real cost: Letta the Developer API plan charges $0.10 per active agent per month plus $0.00015 per second of tool execution on top of a $20 per month base and pay-as-you-go LLM usage, as of August 2026.; Parabola the Basic plan allows 1 user and 1,000 credits with limited AI

Where they differ

Only the attributes on which Letta and Parabola actually diverge.

Attributes where Letta and Parabola differ
AttributeLettaParabola
Starting priceOn requestFree
Pricing modelusage-basedfreemium
Free tierNoYes
FoundedUnknown2015

Identical on both: platforms (Web), 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 Letta

Nothing recorded that Parabola does not also cover.

Only in Parabola

  • Visual workflow builder
  • Data transformation
  • Conditional logic
  • Looping
  • Error handling
  • Monitoring
  • Scheduling
  • 300+ apps

What people use each for

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

Letta

No use cases recorded yet. See the Letta review.

Parabola

  • Workflow automation for operations and finance teamsnot Letta
  • Data integration across 1,000+ sourcesnot Letta
  • Automation and reporting workflowsnot Letta

Where each one falls short

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

Letta

  • The Developer API plan charges $0.10 per active agent per month plus $0.00015 per second of tool execution on top of a $20 per month base and pay-as-you-go LLM usage, as of August 2026.

Parabola

  • The Basic plan allows 1 user and 1,000 credits with limited AI
  • No price is published for either the self serve or the business tier
  • Credits are consumed when agents run, and further credits are bought pay as you go
  • Role based access control, SSO, version history and SLAs all sit on the unpriced business plan

Pricing, plan by plan

Letta

On request

No published plan breakdown. See the Letta review.

Parabola

Free

No published plan breakdown. See the Parabola review.

Which should you pick?

Choose Letta if

Nothing in the data separates Letta from Parabola on the points above - pick on price and on how each one feels to use.

Letta review

Choose Parabola if

  • You need visual workflow builder.
  • You want to start without paying.
  • You also want data transformation.
Parabola review

Questions people ask

Is Letta or Parabola better?
Neither clearly leads. Letta starts at On request and Parabola at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Letta or Parabola?
Parabola has a free tier; the other does not. Paid plans start at On request for Letta and Free for Parabola.
Does Letta or Parabola run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use Parabola for free?
Yes. Parabola has a free tier, so you can try it without paying. Letta starts at On request.
What can Letta do that Parabola cannot?
Parabola covers Visual workflow builder, Data transformation, Conditional logic, Looping.
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