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Tencent·Feb 9, 2026·v1.0·open source

HY-1.8B-2Bit

HY-1.8B-2Bit is a 2-bit quantized large language model developed by Tencent's AngelSlim project. It utilizes Quantization-Aware Training (QAT) on the Hunyuan-1.8B-Instruct backbone, achieving high performance with significantly reduced model size.

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overview

HY-1.8B-2Bit is a 2-bit quantized large language model developed by Tencent's AngelSlim project. It utilizes Quantization-Aware Training (QAT) on the Hunyuan-1.8B-Instruct backbone, achieving high performance with significantly reduced model size.

key features
  • 012-bit quantization for efficient deployment
  • 02Maintains 96% of full-precision model performance
  • 03Dual Chain-of-Thought (Dual-CoT) strategy for flexible reasoning
  • 04Competitive performance across various benchmarks
  • 05Optimized for edge computing environments
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