OpenAI’s $18 Billion Chip Financing Trouble Rattles AI Boom Narrative

OpenAI has been unable to close roughly $18 billion in financing for an early tranche of a Broadcom (AVGO) custom-chip partnership intended to roll out 10 gigawatts of OpenAI-designed accelerators. The shortfall highlights stress in funding for large-scale AI infrastructure, tightening the capital outlook for hyperscalers (2026 capex now estimated at $600–$720B, about 75% for AI). The development raises questions about how much AI capex will actually materialize, and Nvidia (NVDA.OQ) — the primary incumbent supplier — faces risk from delayed or restructured deals and flagged rising unpaid customer receivables (~$33B). Oracle’s (ORCL) prior bond-backed OpenAI commitment is cited as a contrast. Market implications include potential trimming or delay of chip rollouts, pressure on AI hardware demand, and greater lender caution for large capex financings.