Language Models
Find and compare the best open source alternatives to popular software tools. Get weekly recommendations in your inbox.
DeepSeek
DeepSeek is an advanced AI language model platform offering open-source alternatives to ChatGPT and Claude, with superior inference speed and competitive performance.
99,063 stars
Last commit Aug 28, 2025mit
👋 Jan
Jan is an open-source ChatGPT alternative that runs entirely offline on your computer, providing private AI conversations without data leaving your device.
37,524 stars
Last commit Aug 29, 2025apache-2.0
Letta
Letta is an AI operating system that enables developers to create production-ready stateful agents with persistent memory and infinite context through a single API call.
18,105 stars
Last commit Aug 29, 2025apache-2.0