LongCat API Platform Change Log

Version: 2025-09-22

LongCat-Flash-Thinking is officially released and open-sourced simultaneously. It is a deep-thinking model which you can chat with for free on LongCat Chat or call via the API by specifying model=LongCat-Flash-Thinking.
LongCat Chat URL: https://longcat.chat/
For calling instructions, please refer to: LongCat API Platform API Documentation
Open-Source Platforms:
- Hugging Face: https://huggingface.co/meituan-longcat/LongCat-Flash-Thinking
- Github: https://github.com/meituan-longcat/LongCat-Flash-Thinking

The LongCat API Platform is now live, supporting API calls to the LongCat-Flash-Chat model. You can call it by specifying model=Longcat-Flash-Chat.
For calling instructions, please refer to: LongCat AI Platform API Documentation

LongCat-Flash-Chat is officially released and open-sourced simultaneously. It is a high-performance, general-purpose conversational model that you can chat with for free on LongCat Chat.
LongCat Chat URL: https://longcat.chat/
Open-Source Platforms:
- Hugging Face: https://huggingface.co/meituan-longcat/LongCat-Flash-Chat
- Github: https://github.com/meituan-longcat/LongCat-Flash-Chat