FutureHouse vs Letta
Which Agents AI tool is better in 2026?
FutureHouse
Nonprofit research lab building an AI Scientist to automate biology discovery
Letta
Memory-first agents that learn and improve from experience with natural language.
Side-by-side
FutureHouse and Letta look closely matched across funding and pricing — feature fit will likely decide.
| Metric | FutureHouse | Letta |
|---|---|---|
| Taglinei | Nonprofit research lab building an AI Scientist to automate biology discovery | Memory-first agents that learn and improve from experience with natural language. |
| Foundedi | 2023🏆 | — |
| HQi | San Francisco, United States | US |
| Employeesi | — | 1-10🏆 |
| Neuron scorei | 61🏆 | 23 |
| Total fundingi | Undisclosed | Undisclosed |
| Latest roundi | — | — |
| 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 FutureHouse and Letta.
| Capability | FutureHouse | Letta |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | 1 (Node.js) |
| Free plan | ✓ | ✓ |
| Free trial | ✗ | ✓ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of FutureHouse
- Higher Neuron score (61 vs 23)
- Newer company (2023)
🔵 Strengths of Letta
- Offers a free trial
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 Letta if you want the most established option — it has raised Undisclosed, 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
FutureHouse vs Letta — which is better?
It depends on your priority. FutureHouse is the leaner option; Letta has broader feature depth. See the side-by-side table above.
Is FutureHouse cheaper than Letta?
No — Letta's cheapest paid plan is Free, while FutureHouse's is Free.
Do FutureHouse and Letta offer free plans?
FutureHouse: Yes, has a free plan. Letta: Yes, has a free plan.
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