Automation Integration · head to head
Letta vs Trigger.dev
Trigger.dev
Automation Integration
Build and deploy fully managed AI agents and workflows
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Letta free tier limited to 3 stateful agents; Trigger.dev unclear scaling costs beyond included limits; pricing becomes complex beyond base plan features
- Prices and features above were last checked on 29 August 2026.
Where they differ
Only the attributes on which Letta and Trigger.dev actually diverge.
| Attribute | Letta | Trigger.dev |
|---|
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.
Letta
- Building agents with memory for continuous learningnot Trigger.dev
- Enabling reflection during idle periods via sleep-computenot Trigger.dev
- Managing agent context and extracting learningsnot Trigger.dev
Trigger.dev
- Job automation and workflow orchestrationnot Letta
- API-driven task schedulingnot Letta
- Background job processing for applicationsnot 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
Trigger.dev
- Unclear scaling costs beyond included limits; pricing becomes complex beyond base plan features
- No published Enterprise pricing; requires contacting sales
- HIPAA BAA compliance requires separate add-on request
- Pro plan uses conditional language that obscures exact overage costs
- Compute billing granularity is unclear; waits under 5 seconds still consume compute resources
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
Trigger.dev
Free- FreeFree
- $5 monthly credits
- 20 concurrent runs
- 1 day log retention
- Hobby$10/month
- $10 monthly credits
- 50 concurrent runs
- 7 day log retention
- Pro$50/month
- $50 monthly credits
- 200+ concurrent runs
- 30 day log retention
- Enterprise$null/month
- Custom discounts
- RBAC and SSO
- SOC 2 reports
Which should you pick?
Questions people ask
- Is Letta or Trigger.dev better?
- Neither clearly leads. Letta starts at Free and Trigger.dev at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Letta or Trigger.dev?
- Letta starts at Free and Trigger.dev at Free.
- Does Letta or Trigger.dev run on more platforms?
- Both run on Web, so platform support will not decide this one for you.
- Can I use Letta for free?
- Both have a free tier, so you can try either at no cost before committing.
- 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 Trigger.dev is typically brought in for.
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.
SourceTrigger.dev: Is there a free plan for Trigger.dev?
Yes, the Free plan offers $5 in monthly credits, 20 concurrent runs, 1 day log retention, and community support at no cost.
SourceLetta: 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.
SourceTrigger.dev: What's the starting price for a paid plan?
The Hobby plan costs $10 per month USD and includes $10 monthly credits, 50 concurrent runs, and 7 day log retention.
SourceLetta: 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.
SourceRelated pages
More on Trigger.dev
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