Same Architecture, Big Agent Gains: DeepSeek V4's Hidden Upgrades

The most valuable insight from this article is: The DeepSeek V4 series has achieved a qualitative leap in Agent capabilities while keeping the underlying architecture unchanged. This means improvements in model capability don't rely on restructuring the base architecture, but are achieved through fine-tuning of training data, inference strategies, and the fine-tuning pipeline. For the AI industry, this is more noteworthy than releasing a new architecture—it validates the feasibility of the "software-defined model" path.