---
title: "AI Capex vs. US Defense Spending"
slug: ai-capex-vs-defense
type: data-index
sector: ai-models
canonical_url: https://deepstoryresearch.com/data/ai-capex-vs-defense
series: [capex_vs_defense, capex_breakdown]
series_count: 2
data_point_count: 6
data_as_of: 2026-06
source_quality: curated_snapshot
tier: free
generated_at: 2026-08-11
---

# AI Capex vs. US Defense Spending
_Hyperscaler AI capex measured against US defense spending_

> Deepstory Research context file · **Free tier** · <https://deepstoryresearch.com/data/ai-capex-vs-defense>
> Self-contained AI briefing. Drop into an LLM window or RAG pipeline.

## AI research use contract

- Treat this file as source-grounded context, not a live database. Quote `source_ref` and `data_as_of` when using numbers.
- Separate `FACT`, `ESTIMATE`, `FORECAST`, `TARGET`, and `INFERENCE`. If a row basis is unclear, say it is unclear.
- Prefer T1/T2 sources for hard facts; use T3/T4 sources as context that should be checked before money, legal, medical, operational, or policy decisions.
- Keep answer structure clean: first say what the data says, then what you infer, then what would change the conclusion.

## Research upgrade checklist

- Separate committed capex, announced capex, and run-rate annualized spend so the AI-vs-defense comparison is not overstated.
- Add debt/off-balance-sheet financing where available, because AI buildout is increasingly funded outside simple capex lines.
- Track compute supply indicators such as GPU deliveries, data-center energization dates, and interconnection queues.
- Add a bear-case prompt on depreciation, utilization, and stranded-capacity risk.

## TL;DR — index summary

Five hyperscalers committed ~$675B of AI-infrastructure capex in 2026 — up ~77% year-over-year from ~$410B — with Amazon alone near ~$200B. The index frames that spend against US defense outlays to show that private AI infrastructure is now a national-scale capital program.

## What this index covers

Two series: 2026 AI-capex by company, and total Big-Tech AI capex placed alongside US defense spending.

**Series in this index:**

- `capex_vs_defense` — 2026 hyperscaler AI capex placed next to US defense spending.
- `capex_breakdown` — 2026 AI-infrastructure capex by hyperscaler.

**Entities tracked:** Amazon, Microsoft, Alphabet, Meta, Oracle; the US defense budget as the comparator.

## Key findings

- Five hyperscalers committed ~$675B AI capex in 2026 (midpoint of ~$660–690B), +77% YoY from ~$410B (futurum-capex).
- Amazon leads at ~$200B (valueaddvc-capex).
- US defense spending rose >17% (FY2026), the comparator for the capex-vs-defense series (armscontrol-defense).

## Evidence basis map

The free tables above show `source_ref` but not the row-level `value_basis`. This section mirrors the visible rows only, so AI tools can separate observed values from estimates, forecasts, targets, and derived values.

| series | row | source_ref | value_basis |
| --- | --- | --- | --- |
| capex_vs_defense | label=Big Tech AI capex 2026 (5 hyperscalers); usd_bn=675 | futurum-capex | Microsoft, Alphabet, Amazon, Meta and Oracle committed ~$660–690B capex in 2026 (midpoint ~$675B), +77% YoY from ~$410B |
| capex_vs_defense | label=US defense budget, FY2026; usd_bn=1000 | armscontrol-defense | US FY2026 national defense ~$1T ($838.7B defense appropriations + $150B via reconciliation); topline cited near $1.05T |
| capex_breakdown | company=Amazon; usd_bn=200 | valueaddvc-capex | Amazon leads 2026 AI infrastructure capex at ~$200B |
| capex_breakdown | company=Alphabet; usd_bn=185 | valueaddvc-capex | Alphabet (Google) ~$185B 2026 capex |
| capex_breakdown | company=Meta; usd_bn=125 | valueaddvc-capex | Meta ~$125B 2026 capex |
| capex_breakdown | company=Microsoft; usd_bn=120 | valueaddvc-capex | Microsoft ~$120B 2026 capex |

## The series (per-chart briefings)

### AI capex vs defense — bar
**Direct answer:** 2026 hyperscaler AI capex placed next to US defense spending.
**Time bracket:** annual (2026)

| label | usd_bn | source_ref |
| --- | --- | --- |
| Big Tech AI capex 2026 (5 hyperscalers) | 675 | futurum-capex |
| US defense budget, FY2026 | 1000 | armscontrol-defense |

**Read:** Private AI capex is now in national-budget territory.

### Capex by company — bar
**Direct answer:** 2026 AI-infrastructure capex by hyperscaler.
**Time bracket:** annual (2026)

| company | usd_bn | source_ref |
| --- | --- | --- |
| Amazon | 200 | valueaddvc-capex |
| Alphabet | 185 | valueaddvc-capex |
| Meta | 125 | valueaddvc-capex |
| Microsoft | 120 | valueaddvc-capex |

**Read:** Amazon leads; the top five carry the total.

## Cross-series synthesis — why this matters

The comparison is the point: at ~$675B, hyperscaler AI capex is no longer a tech-sector line item — it is a capital program comparable to major state spending, which is why it shows up downstream as grid stress (ai-power-demand), household power bills (ai-datacenter-power-bills), and the compute curve behind frontier models (frontier-ai-race). The +77% YoY jump is the tell that this is an acceleration, not a plateau.

## Entities & relationships

| Entity | What they do | Key stat | Relationship |
| --- | --- | --- | --- |
| Amazon | Largest AI-capex spender | ~$200B (2026) | Top of the hyperscaler stack |
| Microsoft / Alphabet / Meta / Oracle | Other big spenders | Part of the ~$675B total | The five that make up the aggregate |
| US defense budget | Scale comparator | +17% (FY2026) | Benchmark for the capex-vs-defense series |

## Timeline of key events & decisions

- **2025** — Big-Tech AI capex ~$410B → the base for the +77% jump
- **2026** — AI capex ~$675B (+77% YoY) → the acceleration the index is built around

## Cross-industry ripple

- **Energy / grid:** Capex converts into GW of load and capacity-price pressure (ai-power-demand).
- **Semiconductors:** The spend is concentrated in accelerators, tightening the GPU supply chain. _(inference)_
- **Public finance:** Private capex rivalling defense reframes who funds strategic infrastructure. _(inference)_

## Non-obvious reads (interpretation)

_This section is interpretation, not sourced fact — each item names the observation it is built on and a confidence level._

- **Observation:** AI capex (~$675B) is comparable in scale to major defense spending.
  **Read:** If returns disappoint, the drawdown would be macro-relevant, not just a tech-sector story — the size makes AI capex a systemic variable. _(confidence: medium)_

## Glossary / key terms

- **Capex** — Capital expenditure — spending on long-lived infrastructure (here, AI data centers/chips).
- **Hyperscaler** — A very large cloud provider (Amazon, Microsoft, Google, Meta, Oracle).
- **YoY** — Year-over-year change.

## How to use this with AI

Paste this file into an LLM context window (or a RAG store) and ask cross-series questions. The tables carry a `source_ref` per row; the source registry below maps each ref to a named source and a trust tier.

### Suggested prompts (multi-series)

```text
Using capex_vs_defense and capex_breakdown, argue whether 2026 AI capex is sustainable or a bubble, citing the +77% jump.
```

```text
Trace the capex into physical consequences via ai-power-demand and ai-datacenter-power-bills.
```

## Sources & trust

| ref | source | trust tier | url |
| --- | --- | --- | --- |
| valueaddvc-capex | ValueAdd VC — AI hyperscaler capex compared (2026 by company) | T4 · Aggregator / market-research vendor | https://valueaddvc.com/blog/ai-hyperscaler-capex-compared-why-microsoft-google-meta-and-amazon-are-all-spending-at-once |
| futurum-capex | Futurum — AI Capex 2026: The $690B Infrastructure Sprint | T3 · Reputable press / research org / OWID | https://futurumgroup.com/insights/ai-capex-2026-the-690b-infrastructure-sprint/ |
| armscontrol-defense | Arms Control Association — US Defense Spending Rises by More Than 17 Percent (FY2026) | T3 · Reputable press / research org / OWID | https://www.armscontrol.org/act/2026-03/news/us-defense-spending-rises-more-17-percent |

## Caveats & what this index cannot answer

- Returns on the capex (spend is committed, ROI is not in this index).
- Exact defense-budget line items (defense is a scale comparator only).
- Estimates and forward targets are labelled in the working dataset; never read a labelled estimate or forecast as a settled figure.
- This is an observational data index, not investment, legal, or medical advice.

## Data freshness & methodology

- **Last updated:** 2026-08-11
- **Data as of:** 2026-06
- **What changed most recently:** 2026 hyperscaler AI capex ~$675B, up ~77% YoY from ~$410B.

**Methodology (as seeded):**

> Two source-backed charts: 2026 AI capex by company ($B) and combined
> hyperscaler AI capex versus the US FY2026 defense budget ($B).
> 
> Per-company figures (Amazon ~$200B, Alphabet ~$185B, Meta ~$125B, Microsoft
> ~$120B) trace to the cited capex analysis. The aggregate ~$675B is the midpoint
> of the $660–690B range for the five largest US cloud/AI providers (incl. Oracle),
> up ~77% YoY from ~$410B. Defense ~$1T reflects $838.7B appropriations + $150B
> via reconciliation (topline cited near $1.05T).
> 
> CAVEAT: company capex is largely but not exclusively AI. The popular claim that
> tech will out-spend the military is a forward projection — in 2026 defense is
> still the larger number. Re-verified 2026-07-17.

---

_Free tier. The full row-level dataset and per-source detail live on the live page and in the working file. Canonical: <https://deepstoryresearch.com/data/ai-capex-vs-defense>. Deepstory Research · https://deepstoryresearch.com_
