


Letta is a complete operating system for building stateful agents AI agents. Letta handles state persistence, context compilation, and intelligent resource allocation, so you can focus on building applications powered by agents that actually learn. Letta was founded by the creators of MemGPT, which introduced memory (or context) management for AI agents. Today's AI agents struggle with fragmented context and limited memory. Just as computers needed operating systems to manage resources, your agents need intelligent context management to unlock their full potential.
LlamaIndex is a simple, flexible framework for building knowledge assistants using LLMs connected to your enterprise data. They provides the tools to build any of context-augmentation use case, from prototype to production. Their tools allow you to ingest, parse, index and process your data and quickly implement complex query workflows combining data access with LLM prompting.
Vellum AI isn’t a single tool or software – it’s actually a suite of different products and tools that help with various AI-related tasks like prompt engineering, model versioning, LLM applications, semantic search, and performance monitoring. Use Vellum to build and ship reliable AI solutions. Define, evaluate and monitor AI solutions through test-driven development for AI.