# AI Capex and the Bubble Debate

> AI capex in 2026: Alphabet's raised guidance, Nvidia and AMD records, Oracle's debt stress, falling token prices, IPOs. Evidence for and against an AI bubble.

Source: https://metavert.io/ai-capex  
Published: 2026-10-05  
Updated: 2026-10-05

**AI Capex and the Bubble Debate** refers to the record capital expenditure that technology companies are pouring into AI [data centers](https://metavert.io/data-centers), chips and power, and the argument over whether that spending will be repaid by AI revenue or is running ahead of demand in a way that resembles past investment bubbles. As of October 2026, the evidence points both ways: chip suppliers are posting record results while some of the most leveraged builders are under visible financial strain.

## The Scale of the Spending

The clearest signal comes from the hyperscalers' own guidance. In its second-quarter 2026 results, Alphabet reportedly raised its 2026 capital expenditure guidance to $195–205 billion. The same quarter showed why: Google Cloud revenue grew 82% to $24.8 billion and its backlog reached $514 billion. But Alphabet's quarterly free cash flow was reportedly negative, at about −$5.9 billion. Estimates of the combined 2026 capex of the four largest hyperscalers circulate widely, but published figures conflict, so this page does not cite one.

## The Bull Case: Suppliers Are Booking Real Revenue

### Nvidia

[Nvidia](https://metavert.io/nvidia)'s fiscal second quarter of 2027, which ended July 26, 2026, produced revenue of $96.2 billion, up 106% year on year, with data center revenue of $89.0 billion, up 117%. It guided to $108.0 billion, plus or minus 2%, for the next quarter, said its Vera Rubin platform is "now in full production," and reported that its purchase commitments had risen from $119 billion to $279 billion. Notably, the outlook assumes no data center compute revenue from China, so the growth is coming from elsewhere.

### AMD

[AMD](https://metavert.io/amd) reported record second-quarter revenue of $11.5 billion, up 50%, with data center revenue of $6.7 billion. Alongside those results on August 4, 2026, it announced a deal to supply [Anthropic](https://metavert.io/anthropic) with up to 2 gigawatts of MI450/Helios GPUs.

### Public markets are buying

Investors have been willing to fund the build-out in public markets. [Cerebras](https://metavert.io/cerebras) went public on May 14, 2026 at $185 a share, raising $5.5 billion at about a $66 billion valuation, as a profitable company. SpaceX, which reportedly absorbed xAI after acquiring it, priced its IPO on June 11 at $135 a share, raising about $75 billion in the largest IPO ever. [OpenAI](https://metavert.io/openai) has confidentially submitted a draft S-1, and Anthropic reportedly has too.

### Revenue is growing fast

Bulls point to AI labs' revenue growth. These figures are mostly reported by secondary sources and should be treated with caution. A June report put OpenAI's annualized revenue at about $24 billion with an expected 2026 loss of about $14 billion; by late September, Axios reportedly put its run-rate "nearing $70B." Anthropic's run-rate has reportedly been put at $47 billion. Below the labs, Cognition reported a $492 million annualized run-rate when it raised money in May. If those numbers hold up, demand is real and accelerating.

## The Bear Case: Spending Is Outrunning Sales

### Oracle's debt stress

[Oracle](https://metavert.io/oracle) is the most-cited warning sign. According to AI Weekly, its shares fell 19% in a single week, the worst since 2001, on fears about AI-related debt. The same report cites fiscal 2026 free cash flow of about −$23.7 billion, capex of $55.7 billion and debt of about $130 billion, and says more than half of Oracle's $638 billion in remaining performance obligations reportedly comes from OpenAI. That concentration means a single customer's ability to pay underpins much of Oracle's build-out, including its role in [Stargate](https://metavert.io/stargate).

### Falling token prices

The price of AI output is dropping. The Silicon Data token index is reportedly about 20% below its May peak. Cheaper tokens are good for users, but they compress the revenue each GPU earns, which makes it harder to pay back hardware bought at peak prices. See [the inference economy](https://metavert.io/inference-economy) for how that dynamic plays out.

### The capex-to-sales gap

Allianz reportedly puts the gap between capex growth and sales growth at about 46%, compared with 32% at the time of the 2001 telecom downturn. By that measure, today's AI build-out is further ahead of revenue than the telecom build-out was when it went bust.

## Reading the Evidence

The two cases are not mutually exclusive. Nvidia's and AMD's results show that money is really being spent, but that is the same evidence a bubble would produce: supplier revenue is someone else's capex. The question is whether the end customers, the businesses and consumers paying for AI services, will generate enough revenue to justify it. The strongest bullish data point is the hyperscalers' own cloud backlog. The strongest bearish data points are negative free cash flow at Alphabet and Oracle, falling token prices, and heavy dependence on a few AI labs whose finances are mostly disclosed through leaks and, in OpenAI's case, reportedly still loss-making.

Several things could settle the debate over the next year: whether OpenAI and Anthropic publish audited financials through public offerings, whether token prices stabilize, and whether [agentic](https://metavert.io/agentic-ai) workloads turn into revenue at scale. For now, the AI capex cycle looks like both a genuine platform build-out and a period of financial excess. Which one dominates may depend less on the technology than on who is holding the debt when growth slows.

## Related Topics

- [Data Centers](https://metavert.io/data-centers) — Where most AI capex is spent
- [AI Chips](https://metavert.io/ai-chips) — The hardware absorbing the largest share of spending
- [Nvidia](https://metavert.io/nvidia) — The biggest beneficiary of the build-out
- [AMD](https://metavert.io/amd) — Challenger GPU supplier with a 2 GW Anthropic deal
- [Oracle](https://metavert.io/oracle) — The most leveraged cloud builder in the cycle
- [Stargate](https://metavert.io/stargate) — OpenAI's large-scale infrastructure program
- [Cerebras](https://metavert.io/cerebras) — AI chipmaker that went public in May 2026
- [Inference Economy](https://metavert.io/inference-economy) — How falling token prices affect returns on hardware
- [Scaling Laws](https://metavert.io/scaling-laws) — The thesis that justifies ever-larger compute budgets
- [OpenAI](https://metavert.io/openai) — The largest single customer behind several build-outs
- [Anthropic](https://metavert.io/anthropic) — Lab signing multi-gigawatt compute deals
- [AI and Entry-Level Jobs](https://metavert.io/ai-and-entry-level-jobs) — The labor-market side of AI's economic impact

## Further Reading

- [NVIDIA Q2 Fiscal 2027 Results — SEC filing](https://www.sec.gov/Archives/edgar/data/0001045810/000104581026000073/q2fy27pr.htm) — Revenue, data center growth, guidance and purchase commitments
- [AMD Reports Second Quarter 2026 Results — AMD](https://ir.amd.com/news-events/press-releases/detail/1295/amd-reports-second-quarter-2026-financial-results) — Record revenue and the Anthropic 2 GW agreement
- [Alphabet Q2: strong cloud, capex guide raised — Hargreaves Lansdown](https://www.hl.co.uk/shares/share-research/alphabet-q2-results-strong-cloud-capex-guide-raised) — Capex guidance, Cloud backlog and free cash flow
- [Oracle logs worst weekly drop since 2001 — AI Weekly](https://aiweekly.co/alerts/oracle-logs-worst-weekly-stock-drop-since-2001-on-ai-debt-fears) — Oracle's debt, cash flow and OpenAI concentration
- [Silicon Data token index drops 20% from May — AI Weekly](https://aiweekly.co/alerts/silicon-data-token-index-drops-20-from-may-bloomberg-warns) — Token prices and Allianz's capex-to-sales comparison
- [Cerebras raises $5.5B in IPO — Yahoo Finance](https://finance.yahoo.com/markets/stocks/articles/cerebras-raises-5-5b-kicking-163002320.html) — Pricing and valuation of the Cerebras listing
- [SpaceX prices shares at $135 in the largest IPO ever — TechCrunch](https://techcrunch.com/2026/06/11/spacex-officially-prices-shares-at-135-in-the-largest-ipo-ever/) — The SpaceX listing
- [OpenAI confidentially submits draft S-1 — StorageNewsletter](https://www.storagenewsletter.com/2026/06/16/openai-has-confidentially-submitted-a-draft-s-1-to-the-sec/) — OpenAI's filing and reported financials
- [OpenAI ARR nears $70B — AI Weekly](https://aiweekly.co/alerts/openais-annual-recurring-revenue-nears-70b-up-70-since-start-of-q3) — Secondary report citing Axios on OpenAI's run-rate