Chatbase vs Letta
Updated June 2026 · A structured head-to-head comparison.
The verdict
Both Chatbase and Letta are credible ai chatbots tools, and the right pick comes down to your priorities.
Chatbase — Build custom AI chatbots from your data.
Letta — Framework for stateful AI agents with memory.
Chatbase vs Letta: side by side
| Dimension | Chatbase | Letta |
|---|---|---|
| Starting price | Free – $40/mo | Free |
| Free plan | Yes | Yes |
| Pricing model | Freemium | Open source |
| Best for | Smb, Solopreneurs, Teams | Developers, Ai Engineers |
| Platforms | Web, Api | Self Hosted, Api, Web |
| Rating | 4.6/5 | 4.4/5 |
Chatbase key facts
- Vendor
- Chatbase
- Pricing
- Freemium — Free – $40/mo
- Free tier
- Yes
- Platforms
- Web, Api
- Best for
- Smb, Solopreneurs, Teams
- Editor rating
- 4.6 / 5
- Founded
- 2023
- Headquarters
- San Francisco, CA, USA
Letta key facts
- Vendor
- Letta
- Pricing
- Open source — Free
- Free tier
- Yes
- Platforms
- Self Hosted, Api, Web
- Best for
- Developers, Ai Engineers
- Editor rating
- 4.4 / 5
- Founded
- 2023
- Headquarters
- San Francisco, CA, USA
Frequently asked questions
Is Chatbase better than Letta?
Neither is universally better — Chatbase edges ahead on overall rating, but the best choice depends on price, platforms, and your use case. See the side-by-side table above.
Is Chatbase or Letta cheaper?
Chatbase is the more affordable of the two to get started, at free – $40/mo. Chatbase starts at free – $40/mo; Letta starts at free.
Can Chatbase replace Letta?
Yes for most teams — both are ai chatbots tools with heavily overlapping features. The main trade-offs are pricing and platform support, covered in the comparison above.