Hy3

Facts

Noted: The model matches or outperforms larger models like GLM-5.2 and DeepSeek-V4-Pro in benchmarks, and beats GPT-5.5 in scientific research tasks. · 2026-07-07
Noted: Hy3 is designed to reduce hallucinations by only answering when evidence exists. · 2026-07-07
Noted: API pricing from 1 yuan per million input tokens · 2026-07-07
Noted: free on OpenRouter for two weeks · 2026-07-07
Licensed by: Apache 2.0 (global) · 2026-07-07

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Produces of: tencent

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Jul 7

Tencent Releases Smaller Open Model Hy3, Matches Larger Rivals in Scientific Tasks

Tencent released Hy3, an open-source AI model with 295 billion total parameters and 21 billion active parameters, on July 6. The model matches or outperforms larger models like GLM-5.2 and DeepSeek-V4-Pro in benchmarks, and beats GPT-5.5 in scientific research tasks. Hy3 is designed to reduce hallucinations by only answering when evidence exists. It is available under Apache 2.0, with API pricing from 1 yuan per million input tokens, and free on OpenRouter for two weeks.