Ling-flash-2.0 is an open-source Mixture-of-Experts (MoE) language model developed under the Ling 2.0 architecture. It features 100 billion total parameters, with 6.1 billion activated during inference (4.8B non-embedding). Trained on over 20 trillion tokens and refined with supervised fine-tuning and multi-stage reinforcement learning, the model demonstrates strong performance against dense models up to 40B parameters. It excels in complex reasoning, code generation, and frontend development.