LLM Apps & Agents

AI21 Labs is an Israel-based company developing large language models and AI-powered writing tools like Wordtune.

LangChain is a framework for developing applications powered by language models, enabling chaining together various components.

LlamaIndex is a data framework for LLM applications that connects custom data sources to large language models.

Adept AI is building universal AI assistants that can perform complex tasks across software applications by understanding and operating human interfaces.

Replika is an AI companion designed for users to build a personal relationship with an AI chatbot.

Character.AI allows users to create and chat with AI characters, including fictional personalities, historical figures, and custom creations.

Perplexity AI is an AI-powered answer engine that provides direct, cited answers to user queries.