Agno vs Letta
Which Agents AI tool is better in 2026?
Agno
High-performance Python framework and runtime for multi-agent systems
Letta
Memory-first agents that learn and improve from experience with natural language.
Side-by-side
Agno is the more established option (raised $5.4M); pricing is comparable on both sides.
| Metric | Agno | Letta |
|---|---|---|
| Taglinei | High-performance Python framework and runtime for multi-agent systems | Memory-first agents that learn and improve from experience with natural language. |
| Foundedi | 2022🏆 | — |
| HQi | New York, United States | US |
| Employeesi | 15🏆 | 1-10 |
| Neuron scorei | 67🏆 | 23 |
| Total fundingi | $5.4M🏆 | Undisclosed |
| Latest roundi | seed · Aug 2024 | — |
| Valuationi | — | — |
| Cheapest paid plani | Pricing not disclosed | — |
| Free plani | ✓ | ✓ Free |
| Free triali | ✓ | ✓ |
| Top tier pricei | Pricing not disclosed | — |
| Pricing summaryi | Free | 1 published plans |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Agno and Letta.
| Capability | Agno | Letta |
|---|---|---|
| MCP support | ✓ | ✗ |
| Public API | ✓ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | 1 (Python) | 1 (Node.js) |
| Free plan | ✓ | ✓ |
| Free trial | ✓ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Agno
- Has raised more capital ($5.4M vs Undisclosed)
- Higher Neuron score (67 vs 23)
- Newer company (2022)
🔵 Strengths of Letta
- Strong in AI Agents
Which should you choose?
Choose Letta if price matters most — it starts at Free, which is friendlier for teams watching burn. Both AI Agents tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Agno if you want the most established option — it has raised $5.4M, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
Agno vs Letta — which is better?
It depends on your priority. Agno has raised more capital and is the more established option; Letta has broader feature depth. See the side-by-side table above.
Is Agno cheaper than Letta?
No — Letta's cheapest paid plan is Free, while Agno's is Free.
Do Agno and Letta offer free plans?
Agno: Yes, has a free plan. Letta: Yes, has a free plan.
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