DeepSeek releases V4 Pro model and Harness framework for AI agent development

China's supercomputing platform announced availability of DeepSeek V4 Pro and the Harness framework for artificial intelligence agent development. The upgraded DeepSeek V4 Pro model delivers improved performance in production environments, with agent capabilities comparable to international proprietary models. The Harness framework was released under MIT license, providing developers complete access to source code for compilation, debugging, and iterative development. The platform integrates tools for model download, fine-tuning, evaluation, and deployment in a single ecosystem, facilitating rapid prototyping and production deployment of AI models.