Letta vs Mastra
Side-by-side comparison of Letta and Mastra: pricing, features, API access, and community ratings.
AI comparison summary
Generating comparison…
Letta An AI research lab building self-improving agents that remember everything and learn continuously. | Mastra Build AI agents. Build, observe, and improve agents that run for days with Mastra, the leading TypeScript agent framework. | |
|---|---|---|
| Category | Agent frameworks | Agent frameworks |
| Pricing | Freemium | Freemium |
| Starting price | ||
| Free tier | ||
| Audience | All audiences | All audiences |
| API available | ||
| Open source | ||
| Self-hostable | ||
| Model provider | OpenAI, Anthropic, Gemini, and 90+ providers | |
| Founded | 2023 | |
| Headquarters | San Francisco, USA | |
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