Tencent releases Hy4, its first Hy model with visual understanding and computer use, with a reported 1M-token context

Tencent released Hy4 on November 4. It's the company's first Hy model that can use a computer, combining visual understanding, reasoning, and tool calls for long-horizon agent work. SiliconANGLE reports 770 billion total parameters with 49 billion active and a 1 million-token context window. Tencent says it's available now on Tencent Cloud TokenHub, CodeBuddy, and WorkBuddy, and through OpenRouter and OpenCode, and that it kept the same pricing as Hy4 Preview. It plans to release the weights and system cards in the coming days, with a Flash version to follow.

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