Updated Oct 23, 9:23 AM Bogotá
Letta
Open-source harness for stateful agents with memory that learn and improve over time
letta-ai/letta · Official website
needs review: repo not found
| Column | Value | How we know |
|---|---|---|
| License | Apache-2.0 | found automatically · 100% confidence · source: github.com/letta-ai/letta · checked Oct 22, 11:57 AM Bogotá |
| GitHub stars | 25,229 stars | found automatically · 100% confidence · source: github.com/letta-ai/letta · checked Oct 22, 1:44 PM Bogotá |
| Last code change | 2026-10-18 | found automatically · 100% confidence · source: github.com/letta-ai/letta · checked Oct 22, 11:57 AM Bogotá |
| Latest release | 0.16.8 | found automatically · 100% confidence · source: github.com/letta-ai/letta/releases/tag/0.16.8 · checked Oct 22, 11:57 AM Bogotá |
| Latest release date | 2026-05-14 | found automatically · 100% confidence · source: github.com/letta-ai/letta/releases/tag/0.16.8 · checked Oct 22, 11:57 AM Bogotá |
| Needs Docker | no | found automatically · 85% confidence · source: raw.githubusercontent.com/letta-ai/letta/main/README.md · checked Oct 22, 2:33 PM Bogotá |
| Where it runs | Both | found automatically · 95% confidence · source: raw.githubusercontent.com/letta-ai/letta/main/README.md · checked Oct 22, 2:33 PM Bogotá |
| Pricing model | Free open source | checked by a person · 90% confidence · source: github.com/letta-ai/letta · checked Oct 22, 2:51 PM Bogotá |
| Software price ($) | $0 (free) | checked by a person · 90% confidence · source: github.com/letta-ai/letta · checked Oct 22, 2:51 PM Bogotá |
| Software price per month ($/month) (calculated) | $0/month | calculated: The software price in US dollars per month, calculated from the Software price column: monthly prices as is, yearly prices divided by 12, $0 stays $0, and other one-time prices are left empty. |
| Hosted plan offered | yes | checked by a person · 95% confidence · source: docs.letta.com/pricing · checked Oct 22, 2:51 PM Bogotá |
| Hosted plan from ($/month) | $20 | checked by a person · 95% confidence · source: docs.letta.com/pricing · checked Oct 22, 2:51 PM Bogotá |
| Free plan | yes | checked by a person · 95% confidence · source: docs.letta.com/pricing · checked Oct 22, 2:51 PM Bogotá |
| AI usage fees | At cost (no markup) | checked by a person · 90% confidence · source: docs.letta.com/pricing · checked Oct 22, 2:51 PM Bogotá |
| Flat fee ($) | $0.10 | checked by a person · 95% confidence · source: docs.letta.com/pricing · checked Oct 22, 3:42 PM Bogotá |
| Flat fee charged per | each active agent per month | checked by a person · 95% confidence · source: docs.letta.com/pricing · checked Oct 22, 3:42 PM Bogotá |
| AI models included | yes | checked by a person · 90% confidence · source: docs.letta.com/pricing · checked Oct 22, 2:51 PM Bogotá |
| Chat apps | Discord, Signal, Slack, Telegram, WhatsApp | found automatically · 95% confidence · source: docs.letta.com · checked Oct 22, 1:46 PM Bogotá |
| Phone chat apps (calculated) | yes | calculated: Yes when the Chat apps column includes Telegram, WhatsApp, Signal, iMessage or SMS. |
| Desktop app | yes | found automatically · 85% confidence · source: raw.githubusercontent.com/letta-ai/letta/main/README.md · checked Oct 22, 1:32 PM Bogotá |
| Conversation style | Sessions you manage, shared memory | found automatically · 85% confidence · source: docs.letta.com/concepts/stateful-agents · checked Oct 22, 1:46 PM Bogotá |
| Memory stored as | Markdown files | found automatically · 85% confidence · source: docs.letta.com/concepts/shared-memory · checked Oct 22, 2:33 PM Bogotá |
| Memory shared by | One bot, All bots | found automatically · 90% confidence · source: docs.letta.com/concepts/shared-memory · checked Oct 22, 2:33 PM Bogotá |
| Memory writer | Agent, on its own | found automatically · 75% confidence · source: docs.letta.com/concepts/stateful-agents · checked Oct 22, 2:33 PM Bogotá |
| Memory kept after a fresh start | yes | found automatically · 90% confidence · source: docs.letta.com/platform/cloud-agents · checked Oct 22, 2:33 PM Bogotá |
| Saves skills | yes | found automatically · 90% confidence · source: docs.letta.com/concepts/shared-memory · checked Oct 22, 2:33 PM Bogotá |
| Memory readable by you | yes | found automatically · 90% confidence · source: docs.letta.com/concepts/shared-memory · checked Oct 22, 2:33 PM Bogotá |
| Memory editable by you | yes | found automatically · 80% confidence · source: docs.letta.com/concepts/shared-memory · checked Oct 22, 2:33 PM Bogotá |
| Memory history kept | yes | found automatically · 90% confidence · source: docs.letta.com/concepts/shared-memory · checked Oct 22, 2:33 PM Bogotá |
| Writes its own memory (calculated) | yes | calculated: Yes when the agent or a background process writes memory, calculated from the Memory writer column. |
| Learns about you | yes | found automatically · 80% confidence · source: docs.letta.com/concepts/stateful-agents · checked Oct 22, 2:33 PM Bogotá |
| Writes its own skills | yes | found automatically · 70% confidence · source: docs.letta.com · checked Oct 22, 1:32 PM Bogotá |
| Scheduled tasks | yes | found automatically · 90% confidence · source: docs.letta.com · checked Oct 22, 12:03 PM Bogotá |
| Helper agents | yes | found automatically · 75% confidence · source: docs.letta.com · checked Oct 22, 12:03 PM Bogotá |
| MCP tools | yes | found automatically · 75% confidence · source: docs.letta.com · checked Oct 22, 12:03 PM Bogotá |
| Summary | Open-source harness for stateful agents with memory that learn and improve over time | found automatically · 95% confidence · source: raw.githubusercontent.com/letta-ai/letta/main/README.md · checked Oct 22, 12:03 PM Bogotá |
| Tags | coding-assistant, memory, self-hosted, Slack, stateful-agents | found automatically · 90% confidence · source: docs.letta.com · checked Oct 22, 1:46 PM Bogotá |
29 of 66 columns have no sourced value yet for this entry: they are not shown rather than printed as empty.
Changelog
- Oct 22, 2:33 PM Bogotá: Needs Docker changed from yes to no