Tencent and IQuest release large open-source AI models Hy4 770B and IQuest-Q1

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Tencent released its Hy4 preview model, a 770-billion parameter AI model under the Apache 2.0 license in late August 2026. Concurrently, IQuest released its IQuest-Q1 model, a 320-billion parameter MoE architecture. Both models signify a shift in the Chinese AI landscape towards optimizing performance per parameter rather than raw parameter count. The Hy4 preview supports a 1-million token context, while IQuest-Q1 is specifically designed for agentic coding and multi-step tool use.

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