kitio.aiBrowser Use vs Letta
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Browser Use starts at See pricing page and Letta starts at $20/mo. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Python browser agent library
- Hosted cloud browsers
- Custom tools
- Session and login persistence
- Multi-model support
- Persistent agent memory
- Agent SDK and API
- Agent Development Environment
- Cloud or self-hosted
- Agent export and import
| Feature | Browser Use | Letta |
|---|---|---|
| Best for | Open-source library and cloud for AI agents that use browsers | Platform for stateful AI agents with long-term memory |
| Category | Agents & automation | Agents & automation |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | $20/mo |
| Free plan | Yes | Yes |
| Made by | Browser Use | Letta |
| Based in | – | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Browser Use starts at See pricing page and Letta starts at $20/mo. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Browsers
$0.02 / hour
- Cloud browsers
- Residential proxy $5/GB
- $1 free credit, never expires
Browser agents
Model cost + 20%
- Web agents that finish tasks
- Plus browser time and traffic
On-prem
Contact sales
- Run browsers and agents in your network
- SOC 2 Type II, HIPAA
5 plans
Free
Free
- Limited stateful agents
- 5 MiB storage per memory repo
- Bring your own API keys
Pro
$20/mo
- Up to 20 stateful agents
- Letta Auto weekly + monthly quota
- 50 MiB storage per memory repo
Teams Pro
$20/mo
- Per seat
- Share agents with access control
- All Pro features
API Plan
$0.10 / active agent / mo
- Unlimited agents
- $0.00015 per sec tool execution
- Pay-as-you-go LLM usage
Enterprise
Contact sales
- Role-based access control
- SAML/OIDC SSO
- Dedicated support
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Browser Use
- Very popular open-source project
- Easy to customize in Python
- Cheap usage-based cloud
- Agent runs can be slow
- Reliability varies on complex sites
Letta
- Strong long-term memory design
- Open-source core
- Clear view of agent state
- Developer-focused
- Free plan limited to a few agents
Which one should you choose?
Choose Browser Use if you want:
- Very popular open-source project
- Easy to customize in Python
- Cheap usage-based cloud
Watch out: agent runs can be slow.
Choose Letta if you want:
- Strong long-term memory design
- Open-source core
- Clear view of agent state
Watch out: developer-focused.
Browser Use vs Letta FAQ
What is the difference between Browser Use and Letta?
Browser Use: Open-source library and cloud for AI agents that use browsers. Letta: Platform for stateful AI agents with long-term memory. Both are agents & automation tools.
Is Browser Use or Letta cheaper?
Browser Use starts at See pricing page and Letta starts at $20/mo. Check both pricing pages for current plans.
Do Browser Use and Letta have free plans?
Browser Use: Yes. Letta: Yes.
Who makes Browser Use?
Browser Use is made by Browser Use.
Who makes Letta?
Letta is made by Letta, based in United States.
Which should I choose, Browser Use or Letta?
Choose Browser Use if you value very popular open-source project and easy to customize in python. Choose Letta if you value strong long-term memory design and open-source core.