Tencent Releases Hy4 Preview AI Model, Open and Free
Tencent released the AI model Hy4 preview on August 28, 2026. It is an open model with 770 billion total parameters, 490 billion active parameters, and a 1 million token context length. It surpasses GPT-5.6 Sol on some benchmarks and is free under Apache License 2.0.