https://www.brandcited.ai/blog/b2b-buyers-ai-chatbot-vendor-selection BrandCited en 2026-06-20T06:00:00.000Z 51% of B2B buyers now start research in AI chatbots: 69% chose a vendor they found there Blog AI visibility, generative engine optimization, AI search, b2b, buyers, chatbot, vendor, selection https://www.brandcited.ai/blog/chatgpt-perplexity-citation-overlap-2026 BrandCited en 2026-06-19T06:00:00.000Z ChatGPT and Perplexity cite different brands 89% of the time Blog AI visibility, generative engine optimization, AI search, chatgpt, perplexity, citation, overlap, 2026