Tencent releases full Hy4 model with vision and computer use
The gist
Tencent released the full Hy4 model, adding visual understanding and computer-use capabilities for the first time.
Weights are still to come, and rivals' open-weight models are close behind.
How it unfolded
- Aug 28, 2026Tencent released and open-sourced the Hy4 preview, a 770B total-parameter, 49B active-parameter model with a 1M-token context window, under Apache License 2.0 with weights, fine-tuning guidance, deployment instructions and quantization tooling.
- Nov 4, 2026Tencent announced the full release of Hy4, adding visual understanding and computer-use capabilities for the first time, and said weights and system cards would be released in the coming days.
- Nov 4, 2026Hy4 became available through Tencent Cloud TokenHub, WorkBuddy, CodeBuddy, Yuanbao, WeCom's AI Assistant, ima, and third-party platforms OpenRouter, Hermes and OpenCode, with API pricing unchanged from the preview.