Agno vs Letta
Side-by-side comparison built from DeepYard's structured catalog. Content updated Aug 21, 2026.
Direct Answer
Agno suits teams needing open-source access, agents focus, and 41,830 GitHub stars in current listing data. Letta suits teams needing open-source access, memory management focus, and 24,339 GitHub stars in current listing data. This summary reflects catalog metadata only for decision support, not independent testing.
What this comparison weighs
- Pricing and free-tier availability
- License model and deployment fit
- GitHub adoption and contributor depth
- Catalog tags, integrations, and supported workflows
| Metric | Agno | Letta |
|---|---|---|
| GitHub Stars | 41.8K | 24.3K |
| Contributors | 444 | 140 |
| Last Commit | Aug 22, 2026 | Aug 16, 2026 |
| Open Issues | 1276 | 42 |
| License | open-source | open-source |
| Pricing | open-source | open-source |
| Free Tier | Yes | Yes |
| Category | frameworks | frameworks |
| Trending | No | No |
Choose Agno if you need
- • Agno is the stronger pick when Agents matters because that capability is listed only on its profile.
- • Agno shows broader GitHub adoption with 41,830 stars versus 24,339 for Letta.
- • Agno has a larger visible contributor base (444 vs 140).
Choose Letta if you need
- • Letta is the stronger pick when Memory Management matters because that capability is listed only on its profile.
- • Letta is the cleaner fit if you specifically need Stateful workflows from the catalog tags.
Meaningful differences
- • GitHub adoption: Agno shows 41,830 stars versus 24,339 for Letta.
- • Contributor count: Agno lists 444 contributors and Letta lists 140.
Shared capabilities
- • Python
- • Memory
- • Open Source
Shared Tags
Only in Agno
Only in Letta
Limitations and evidence
- • DeepYard compares structured public metadata; this is not an independent benchmark unless a test record is shown.
- • Signals such as stars, contributors, and last commit indicate public activity, not purchase fit or runtime quality.
- • Pricing and feature coverage reflect the stored listing snapshot and may lag vendor changes between refreshes.
About Agno
Agno is a full-stack platform for agentic software comprising three layers: a Python framework for building agents and teams with memory, knowledge, and 100+ tool integrations; a production-ready FastAPI runtime with 50+ APIs, horizontal scaling, native tracing, and human-in-the-loop approval workflows; and AgentOS, a control plane UI for monitoring and managing deployed agents. Supports per-user and per-session isolation, role-based access control, guardrails, evaluations, and immutable audit trails. All data stays in your database — no vendor lock-in.
View full listingAbout Letta
Letta (formerly MemGPT) is a framework for building stateful AI agents with persistent long-term memory. It implements a virtual context management system that allows agents to maintain conversation history, user preferences, and knowledge across sessions. Provides a server runtime, REST API, and Python SDK for production deployment.
View full listing