OpenChatKit

If you've ever wanted the power of ChatGPT but wished you had more control, more transparency, and more room to customize — OpenChatKit was built for you. As the first open-source ChatGPT alternative, it offers a solid foundation for building both specialized and general-purpose chatbots for virtually any use case.

OpenChatKit isn't just a model drop — it's a full open-source project complete with an instruction-tuned large language model, customization recipes, an extensible retrieval system, and a moderation model. It's designed for developers and teams who want to actively shape their AI systems, contribute to continuous improvement, and build something that's truly their own — backed by a community that grows smarter together.