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Enterprise AI Adoption · Index

Generative AI Statistics 2026

How far generative AI has spread by 2026 — in users, revenue and business adoption. Every figure is linked to its primary source and dated.

By The AI Index · Updated Jun 20, 2026 · 6 min read · 7 sourced figures

Users and engagement

Generative AI is the fastest-adopted technology in modern history. ChatGPT reached approximately 900 million weekly active users in February 2026, up from 400 million a year earlier (TechCrunch). Beyond consumers, OpenAI reported crossing 1 million business customers in late 2025, with more than 9 million paying business seats (Sacra).

Milestone	Value	Source
ChatGPT WAU — Feb 2025	400M	OpenAI / TechCrunch
ChatGPT WAU — Jul 2025	700M	OpenAI
ChatGPT WAU — Dec 2025	800M	OpenAI
ChatGPT WAU — Feb 2026	900M	TechCrunch
OpenAI business customers	1M+ (late 2025)	Sacra
OpenAI paying business seats	9M+ (late 2025)	Sacra

Where enterprise generative-AI budgets go

Enterprises spent $37 billion on generative AI in 2025, with coding the dominant departmental use case at roughly 55% of application-layer spend (Menlo Ventures). Coding has clean, measurable productivity outcomes and the shortest time-to-value of any enterprise generative-AI workload — running on top of an existing developer base, which makes per-seat ROI straightforward to justify.

Department	Share of departmental AI spend
Coding / engineering	~55% ($4.0B)
IT	~10%
Marketing	~9%
Customer success	~9%
Design	~7%
HR	~5%

Revenue and market

The commercial scale of generative AI is now significant. OpenAI reached roughly $25 billion in annualized revenue in early 2026 — about $2 billion per month, up from around $20 billion at the end of 2025 (Sacra). For the broader capital picture, see our enterprise AI spend coverage.

“900 million weekly users and $25 billion in annualized revenue — generative AI crossed from novelty to infrastructure in under three years.”

The numbers in full

Indicator	Figure	Source
ChatGPT weekly active users (Feb 2026)	~900M	TechCrunch
OpenAI annualized revenue (early 2026)	~$25B	Sacra
Organizations using generative AI (2024)	71% (from 33% in 2023)	Stanford HAI
Enterprise GenAI spend (2025)	$37B	Menlo Ventures
Coding share of departmental spend	~55%	Menlo Ventures

Figures reflect each source’s latest release; gen-AI org share is reported for 2024. See sources below.

Frequently asked

How many people use ChatGPT in 2026?

ChatGPT had approximately 900 million weekly active users as of February 2026, double its 400M base a year earlier. (TechCrunch / OpenAI)

How much revenue does OpenAI make?

OpenAI reached roughly $25 billion in annualized revenue in early 2026, equivalent to about $2 billion per month. (Sacra)

What do businesses use generative AI for?

Coding is the single largest enterprise use case — about 55% of departmental application-layer spend in 2025 — followed by IT, marketing, customer success, design, and HR. (Menlo Ventures)

Related: AI Adoption Statistics 2026 · Enterprise AI Statistics 2026 · Compare year over year · Generative AI