Salesforce Data Cloud's Einstein AI is genuinely capable — predictive scoring, propensity modelling, and next-best-action recommendations — but it only activates inside Salesforce tools. If your campaigns run through Salesforce Marketing Cloud, Sales Cloud, or Service Cloud, Einstein adds real value. If you run non-Salesforce channels (WhatsApp, push, third-party email), Einstein's AI doesn't reach them. Segment has no native AI at all. For teams that need AI decisioning across all channels — not just Salesforce ones — NVECTA's reinforcement learning engine is built for this. It works on any channel, on any data, without a Salesforce prerequisite.