Letta (formerly MemGPT) is a ai memory & search tool with a free tier. We looked at what you actually get, what real users say, and whether the price matches the value. Here's our take.
Letta (formerly MemGPT) is worth it if you need ai memory & search tools. Solves the fundamental context window limitation of traditional llms makes it a solid choice.
💰 Bottom line: Free gets you revolutionary ai memory platform that solves the context window problem by giving ai agents persistent, unlimited memory that learns and evolves over time, enabling truly stateful conversations and document analysis beyond traditional llm limitations
For Free, here's what that buys you:
$0/mo ÷ 8 hours saved = $0.00 per hour of value
Compare that to hiring a $ai memory & search professional at $40/hour
Even at minimum wage ($15/hr), Letta (formerly MemGPT) saves you $120 over doing it manually.
We're not here to sell you Letta (formerly MemGPT). Here's what you should know before buying:
Quick comparison (not a full review):
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Letta (formerly MemGPT): Better if you need Teams needing ai memory & search capabilities
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Letta (formerly MemGPT): Better if you need Teams needing ai memory & search capabilities
Open-source Python framework that orchestrates autonomous AI agents collaborating as teams to accomplish complex workflows. Define agents with specific roles and goals, then organize them into crews that execute sequential or parallel tasks. Agents delegate work, share context, and complete multi-step processes like market research, content creation, and data analysis. Supports 100+ LLM providers through LiteLLM integration and includes memory systems for agent learning. Features 48K+ GitHub stars with active community.
CrewAI: Better if you need their specific features
Letta (formerly MemGPT): Better if you need Teams needing ai memory & search capabilities
| Use Case | Verdict | Why |
|---|---|---|
| Freelancers | ⚠️ | Affordable for solo professionals |
| Students | ✅ | Free tier available for learning |
| Small Teams (2-10) | ⚠️ | Check if team features are available |
| Enterprise | ⚠️ | Enterprise features and support needed |
Letta (formerly MemGPT) may have a learning curve for beginners. Consider starting with the free tier before committing to paid plans.
Letta (formerly MemGPT) remains relevant in 2026 with regular updates and feature improvements. The ai memory & search market continues to grow, making it a solid investment for professionals.
The free tier covers basic needs but upgrading unlocks advanced features like Up to 20 stateful agents. Most professionals will need the paid version.
The Max plan offers the best balance of features and price for most users.
While there are other ai memory & search tools available, Letta (formerly MemGPT)'s feature set and reliability often justify its pricing. Compare alternatives carefully.
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Last verified March 2026