This is a Sources Sought notice seeking information on commercially available large language model (LLM) trainers that can create and update training from user inputs and technical documentation. The government is looking for vendors with experience in AI/ML solutions within secure, classified environments, specifically asking for detailed capabilities, past performance, and technical and compliance information. There is no budget or specific location for performance mentioned in this description. Responses are due by 30 April 2026. The notice emphasizes that this is for planning purposes only and is not a formal solicitation.