Longcat 2.0 Goes Open Source
Reported by the original publisher: longcat 2.0 (1.6T, ~48B active) weights are now open under MIT license. Analysis and context written by TickrWire.
Longcat 2.0 model weights are now available under the MIT license, featuring 1.6T parameters and 48B active parameters. The model is open for use and modification by the community.

- Longcat 2.0 model weights are now open sourced under the MIT license
- The model features 1.6T parameters and 48B active parameters
- The open-source release aims to foster community-driven AI development and innovation
- The MIT license allows for free use and modification of the model
The release of Longcat 2.0 under the MIT license marks a significant milestone in the development of open-source AI models. This move allows developers and researchers to access, modify, and build upon the model, potentially leading to new breakthroughs and applications.
The Longcat 2.0 model boasts impressive specifications, including 1.6T parameters and 48B active parameters, making it a substantial addition to the open-source AI landscape. By making the model's weights available, the developers aim to foster a community-driven approach to AI development, encouraging collaboration and innovation.
This open-source release is expected to have a positive impact on the AI community, as it provides a valuable resource for researchers and developers to explore and improve upon. The MIT license ensures that the model can be used and modified freely, with the potential for widespread adoption and integration into various projects and applications.
The technical details of the Longcat 2.0 model are outlined in a blog post published on June 30, which provides an in-depth look at the model's architecture, capabilities, and potential use cases. With the model now available under the MIT license, the community can expect to see new and exciting developments in the field of AI.
access to a powerful open-source AI model for research and development
opportunity to learn from and contribute to a significant AI project
advances in AI development and potential for new applications
Open SourceHacktoberfest 2026: AI belongs to everyone
Open Sourceopen-doc: Letting Antigravity and Other Coding Agents Fully Own Document Layout and Generation
DFM Mimir v1: An Open HRM Delivering Frontier Performance at 1B Parameters Using Only Permissible Post-Training Data
MARC v1: An Open-Source Multi-Agent Framework for Clinical AI Reasoning and Coordination
Open SourceNVIDIA and Local AI Community Fuel Open Source Models and Intelligent Agents
AI ToolsMeta AI’s new Mac app wants you to talk to your apps
Meta released a new Mac application that lets users control apps and dictate text using voice commands powered by its Muse Spark AI model.
New White House strategy clarifies military tech priorities: undersea, outer space and AI - Breaking Defense
The White House released a new strategy prioritizing military investments in artificial intelligence, space systems and undersea technologies to counter emerging threats.
AI in an iron grip: How dictatorships use artificial intelligence to strengthen their rule - theins.press
A new report examines how authoritarian governments deploy AI for surveillance, censorship, and propaganda to reinforce their power.
Stripe, OpenRouter finally strike a deal - Banking Dive
Stripe and OpenRouter have partnered to integrate Stripe's payment processing with OpenRouter's AI model aggregation platform.
How one Philadelphia school is using AI to strengthen student learning, not replace teachers - CBS News
A Philadelphia school is integrating AI tools to support teachers and improve student outcomes, focusing on collaboration rather than replacement.
Exclusive-How a Texas student blew the whistle on a rogue AI hacking attempt - The Mighty 790 KFGO
A Texas student uncovered an AI-powered hacking attempt targeting local systems, prompting a swift law enforcement response.