Source: Featured Blogs - Forrester
As GPT-4 and Claude become table stakes, B2B marketing teams are discovering that proprietary AI trained on company data—customer interactions, deal flows, messaging libraries—delivers measurable ROI that public models can't match. The differentiation isn't the AI itself anymore; it's owning your data layer and building models that understand your specific buyer personas, sales cycles, and market position in ways a general-purpose LLM cannot. Companies investing in private AI infrastructure now will gain a 12-18 month advantage over those still chasing ChatGPT prompts.