AI Builder is where Techstrong.ai gets under the hood of the models and tools powering the next generation of AI. It covers foundation and open-source model releases, fine-tuning and training platforms, model builders and agent studios, evaluation and testing frameworks, prompt tooling, and the MCP-era infrastructure connecting models to real systems. If it involves building, tuning, testing, evaluating, or extending an AI model, AI Builder is where you’ll find it.