The best AI conference for a CIO is rarely the biggest one. Start with room size: once a room passes a few hundred people, conversation becomes broadcast, so look for gatherings capped under a hundred senior leaders. Check seniority next — the value of a day out of the office is the people beside you, so ask who actually attends: CIOs, CDOs and enterprise AI heads with real budget authority, or a mixed crowd of practitioners and sellers. Insist on no vendor stage: if sponsors are pitching from the podium, the agenda serves the sponsor, not you. Look for structured peer discussion — roundtables, closed-door sessions and working groups where you can test decisions against people running the same programmes. Finally, ask about the budget-holder ratio: a room where most attendees control AI spend produces conversations you can act on Monday morning. CIO Vision rooms are built to exactly these criteria.