A large model that was open-sourced less than two weeks ago has extended its free trial period from two weeks to nearly a month, all because of user feedback saying "another two weeks." On July 20, Zhang Jun, the public relations director of Tencent, revealed on Weibo that when the two-week free trial of the HuanYuan large model Hy3 was about to end, the company received strong feedback from users requesting an extension. As a result, Tencent decided to extend the limited-time free offer for Hy3 to August 5th for WorkBuddy and CodeBuddy users.

The main focus of this free trial, Hy3, is the new generation model that Tencent officially open-sourced and released on July 6th. Its most distinctive feature is a model that combines fast and slow thinking - it can provide intuitive responses quickly and also take time to perform in-depth reasoning, with both rhythms integrated into the same architecture. In terms of technical foundation, Hy3 uses a MoE (Mixture of Experts) architecture, with a total parameter scale of 295B and activated parameters of 21B, which means that only a small part of the experts are activated during each inference, using relatively modest computing costs to leverage a vast knowledge capacity; it supports up to 256K context length, allowing it to absorb long documents or entire codebases without losing the previous context.
