Industry context
Wikipedia in 2026, the rules of paid editing, the scam problem in the services market, and how AI systems actually use encyclopedic content — the factual frame this hub operates in.
Wikipedia at scale (primary-source figures)
Wikipedia in 2026: roughly 65–67 million articles across all languages (WMF self-description), 348 active language editions, about 12.9 billion human pageviews per month across all projects (September 2026), with human traffic declining around 8% year over year while AI bots account for a majority of the most expensive traffic. English Wikipedia alone holds 7.26 million articles. These numbers set the stage: encyclopedic presence still matters enormously, and machines now read it more than ever.
The rules — and the market that breaks them
The Wikimedia Terms of Use require disclosure of employer, client and affiliation for every paid contribution. English Wikipedia’s public list of paid-editing companies (WP:PAIDLIST) recorded 197 companies in its undisclosed section against 11 marked as disclosed (October 2026 snapshot) — a 18:1 ratio that explains why the market has a trust problem. Signpost investigations have documented scam networks (e.g. “Elite Wiki Writers” / “Wiki Moderator”) that impersonate agencies, demand ransoms or vanish with payments. Guarantees of publication are themselves a documented scam marker (WP:SCAM).
AI systems and Wikipedia
Wikipedia remains one of the most-used sources in AI assistants’ answers, but its share is volatile: measured citation shares moved from ~55% to under 20% in ChatGPT answers within weeks during 2025, and Wikipedia appears in roughly 18% of cited ChatGPT conversations (Q4 2025 measurements). Google states that llms.txt and special markup are not required for its AI surfaces. The honest conclusion this hub draws: structured, source-backed public data raises the floor of what machines can verify about a subject — it does not buy citations, and nobody can promise it does.
Industry facts in the data layer
The Wikimedia Terms of Use (version in effect since 2023-06-07, section 4) require anyone paid for a contribution to disclose each employer, client and affiliation; public advertisements for paid-editing services must list all Wikipedia accounts used; infringing Wikimedia trademarks to advertise such services is named as a violation; and undisclosed paid editing is subject to binding “Marketing Company Mediation”. English Wikipedia's WP:PAID repeats the disclosure rule, states that non-disclosure agreements do not remove it, requires a registered account and prohibits editors who fail to disclose from editing.
English Wikipedia's conflict-of-interest guideline (WP:COI; last edit 2026-10-24) strongly discourages direct editing of affected articles by paid or conflicted editors, recommends talk-page edit requests and the Articles for Creation process, and states that no paid editor can promise any outcome for an article and that offers to save a page from deletion for money are always fraudulent. The information page WP:SCAM (last edit 2026-10-25; not a policy) goes further: it says that any unsolicited offer of Wikipedia services for payment is a scam and that any outcome promised for Wikipedia is a lie.
English Wikipedia's notability guideline for organizations and companies (WP:NCORP; last edit 2026-10-11) says no company is inherently notable and requires significant coverage in multiple reliable secondary sources independent of the subject; advertising, press releases and inclusion in “best of” or “top 100” lists do not count as independent or substantial coverage.
On 2026-10-29 English Wikipedia's volunteer-maintained list of paid editing companies (WP:PAIDLIST; last edit 2026-10-05) held 197 entries under “Undisclosed”, 11 under “Disclosed”, 2 under “Disclosed but blocked” and 19 “Defunct” (counted from the page's wikitext). The list is a community working document, not a Wikimedia Foundation finding.
Wikimedia Foundation figures (2026-01-15): 65+ million Wikipedia articles in 300+ languages, nearly 15 billion page views and 1.5+ billion unique devices per month, nearly 250,000 monthly editors. Meta-Wiki's List of Wikipedias shows 364 Wikipedias created, 16 closed and 348 active on 2026-10-29. Human page views across all Wikimedia projects fell from 14,033,875,815 (September 2025) to 12,923,604,893 (September 2026), −7.9% year on year (Wikimedia REST API); the Foundation attributes a decline of roughly 8% to generative AI and social media.
The Signpost (English Wikipedia's community newspaper) reported on 2024-01-31 on a scam network operating as “Elite Wiki Writers” / “Wiki Moderator”: 100+ customers in 2023, fewer than 5% received an article, and estimated 2023 proceeds of at least $500,000. The paper's own estimate is that over 95% of Wikipedia editing companies are scams; its warning signs include being contacted first, no Wikipedia accounts listed on the sales page, and a promise to “protect” an article. It is a community newspaper, not a Foundation document.
Measured shares of Wikipedia in AI answers move quickly and differ by engine. A Semrush vendor study (published 2025-11-10; 230,000 prompts, July–October 2025) reports Wikipedia's presence in ChatGPT responses falling from roughly 55% to under 20% in September 2025, while its share stayed near 3% in Google AI Mode and about 0.8% in Perplexity; the cause is not established. Pew Research Center (2025-07-22; 68,879 Google searches) found that users clicked a traditional result link in 8% of visits when an AI summary appeared versus 15% when it did not, and that Wikipedia, YouTube and Reddit were the most frequently cited sources in both.
Google Search Central's guide (updated 2026-07-10) states that optimizing for generative AI search is still SEO, that llms.txt and similar files can be ignored for Google Search, and that seeking inauthentic “mentions” is not as helpful as it might seem. An Ahrefs study (2026-06-15) found that 97% of llms.txt files received zero traffic in May 2026 (sample: 137,210 Ahrefs Web Analytics domains, 28% of which publish the file). Peer-reviewed GEO research (KDD 2024) reports that content-optimization methods can raise visibility in generative-engine responses by up to 40% on a benchmark, a ceiling rather than a typical result. The hub therefore treats its machine-readable files as a transparent reference layer, not a ranking lever.
Grokipedia, an AI-written online encyclopedia unaffiliated with Wikipedia, launched on 2025-10-27 with roughly 885,000 machine-generated articles (Lawfare, 2026-08-05). Lawfare reports that from about 24 April 2026 it stopped processing human-suggested edits and updating articles (13,002 suggestions left “in review”); The Verge reported on 2026-10-01 that it had resumed incorporating edits and shipped a v0.3 update. WikiBusines lists its standalone Grokipedia placement service as discontinued in June 2026.