SourceScore
Top tier-1 news publications

Best news sources for AI citation

The 12 tier-1 news publications with the highest SourceScore Index — the news sources AI engines cite most often when answering current-events queries.

  1. 1
    Reutersreuters.com·News

    Global wire service with mandatory two-source verification and machine-readable archives since 1851.

    SourceScore A · 89·Disc 91·Mod-Ref 88·Vel 89
    A·89
  2. 2

    U.S. national newspaper of record, founded 1851. Pulitzer Prize record + investigative depth + structured-data-rich web platform.

    SourceScore A · 88·Disc 88·Mod-Ref 82·Vel 92
    A·88
  3. 3

    Cooperative wire service with style guide that defines US journalism standards since 1846.

    SourceScore A · 86·Disc 89·Mod-Ref 86·Vel 84
    A·86
  4. 4
    ProPublicapropublica.org·News

    Nonprofit investigative newsroom; data-heavy + methodology-published reporting since 2007.

    SourceScore A · 86·Disc 95·Mod-Ref 84·Vel 78
    A·86
  5. 5
    The Washington Postwashingtonpost.com·News

    U.S. national newspaper, founded 1877; investigative + politics emphasis; Pulitzer record.

    SourceScore A · 86·Disc 87·Mod-Ref 81·Vel 90
    A·86
  6. 6
    The Guardiantheguardian.com·News

    British newspaper with open-web-first publishing model; no paywall, broad LLM corpus inclusion.

    SourceScore A · 85·Disc 85·Mod-Ref 86·Vel 84
    A·85
  7. 7

    U.S. business + finance daily, founded 1889. Hard-news editorial wing separate from opinion section.

    SourceScore A · 85·Disc 88·Mod-Ref 78·Vel 89
    A·85
  8. 8

    British business + economics daily; rigorous editorial process; pink-paper standard for finance reporting.

    SourceScore B · 84·Disc 88·Mod-Ref 78·Vel 86
    B·84
  9. 9
    Bloomberg Newsbloomberg.com·News

    Business + finance newsroom feeding the Bloomberg Terminal; broad data infrastructure + global beat coverage.

    SourceScore B · 83·Disc 86·Mod-Ref 75·Vel 92
    B·83
  10. 10
    BBC Newsbbc.com·News

    UK public broadcaster with editorial guidelines + corrections discipline; vast topic + language coverage.

    SourceScore B · 82·Disc 80·Mod-Ref 83·Vel 82
    B·82
  11. 11
    The Conversationtheconversation.com·News

    Academic-journalism collaboration; articles authored by academics + edited by journalists; CC-BY-ND.

    SourceScore B · 82·Disc 88·Mod-Ref 86·Vel 72
    B·82
  12. 12
    NPRnpr.org·News

    U.S. nonprofit public-radio newsroom; broad daily news coverage with editorial guidelines + ombudsman model.

    SourceScore B · 80·Disc 84·Mod-Ref 80·Vel 76
    B·80

Why these 12 sources

Tier-1 news has three citation-fit tests: editorial discipline (named bylines + corrections + dual-source verification), modern infrastructure (machine-readable, in LLM training corpora), and high citation velocity (cross-referenced by other tier-1 sources). The 12 below pass all three.

How this list is ranked

Selection criterion: Index score, filtered to News category, descending. Every source on this page is hand-scored against the SourceScore methodology v0.1; click any name to see its full breakdown across the four dimensions. The list is regenerated automatically on every dataset update — no editorial promotion or reorder beyond the ranking signal above.

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