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OpenAI Disputes Anthropic Revenue by Billions

8 sources tracking this story
anthropic openai sam altman dario amodei ai-business ipo

Key insights

  • OpenAI CRO Denise Dresser sent an internal memo claiming Anthropic's $30B run rate overstates actual revenue by $8B through gross accounting on cloud reseller transactions.
  • Anthropic filed its confidential S-1 on June 1 and OpenAI followed on June 8, a seven-day gap that forces side-by-side financial comparison during SEC review.
  • Anthropic books the full amount billed through AWS and Google Cloud as top-line revenue and records partner cuts as expenses; OpenAI records only its net take from Microsoft.

Why this matters

OpenAI and Anthropic filed confidential S-1s seven days apart in June 2026, making direct revenue comparisons unavoidable for institutional investors evaluating both listings simultaneously. OpenAI CRO Denise Dresser circulated an internal memo contending Anthropic's $30 billion run rate overstates actual revenue by roughly $8 billion through gross accounting on cloud reseller transactions, a figure Anthropic rejects by arguing it is the principal in those deals with AWS and Google Cloud serving as distribution channels. The SEC will have to adjudicate which accounting treatment applies to AI platform companies distributing through hyperscaler channels, setting precedent for every future AI company with similar partnership structures. Secondary markets already diverge sharply: Anthropic has $2 billion in queued buy-side demand with no sellers, while OpenAI trades at a 10% discount amid CFO-level uncertainty about its 2026 IPO readiness.

Summary

OpenAI claims Anthropic overstates its revenue by billions of dollars, because Anthropic books gross customer revenue while OpenAI reports net after payments to partners like Microsoft. Both companies filed for IPO within days of each other: Anthropic on June 1, OpenAI on June 8, 2026. OpenAI is targeting a valuation of approximately $1 trillion, putting enormous pressure on how both companies present their financial metrics to investors at the same moment. Essentially: (OpenAI, Anthropic) are fighting over the definition of revenue at the exact moment investor scrutiny is at its peak. - Anthropic books gross customer revenue; OpenAI reports net after partner cuts, making the two figures structurally incomparable - Altman called Anthropic's Super Bowl advertisements 'deceptive' in February 2026, one front in a rivalry that now spans product launches, public statements, and accounting methodology - Both CEOs refused to join hands at an India summit, a moment captured in viral video The accounting dispute could determine which company appears larger to investors before two of the most consequential AI IPOs in history.

Potential risks and opportunities

Risks

  • Anthropic's IPO valuation could be materially reduced if the SEC requires revenue restatement on a net basis before the offering clears
  • OpenAI faces reputational risk if its public attacks on a competitor's accounting are perceived as a coordinated pressure campaign to undercut a rival's IPO
  • Investment banks managing both IPOs simultaneously face conflict-of-interest scrutiny from regulators if information barriers between their deal teams prove insufficient

Opportunities

  • Accounting firms specializing in tech-platform revenue recognition gain leverage advising both companies and future AI startups on gross-vs-net treatment ahead of and after IPO
  • Institutional investors who can accurately model net revenue figures for both companies hold a meaningful analytical edge in the IPO allocation process
  • Rival AI companies can preemptively clarify their own revenue recognition methodology, differentiating themselves to institutional investors watching this dispute play out

What we don't know yet

  • Which specific accounting standard each company applies and whether the SEC has formally weighed in on the dispute before the IPO filings clear review
  • The exact revenue figures Anthropic reports versus what OpenAI claims the net equivalent would be under its own methodology
  • Whether other AI companies with cloud-distribution deals face the same gross-vs-net reclassification risk as institutional investor scrutiny intensifies around the sector

What others are reporting

Coverage cluster as of 2h after publish

  1. Augment Pulse Read →

    Frames the accounting clash as a narrative war with direct secondary-market consequences: Anthropic has $2B in queued buy demand with no sellers while OpenAI trades at a 10% discount tied to executive uncertainty.

    Anthropic inflates its headline metric by roughly $8B by grossing up revenue from cloud resellers rather than recording only Anthropic's net take.
  2. Futurum Read →

    Analyst deep-dive on the gross-vs-net methodology: identifies Anthropic's $47B run-rate figure as the number audited financials will most likely compress, making accounting treatment the central IPO watchpoint for institutional buyers.

    The filing comes earlier than expected, as the Claude maker looks to beat its primary rival, OpenAI, to fresh funding.
  3. The Next Web Read →

    Investor skepticism targets OpenAI internally alongside the Anthropic challenge: two product-roadmap pivots in six months and a 'Netscape of AI' comparison from an industry analyst surface as additional pressure on the $852B valuation.

    "You do not want to be a single-product company in a platform war," OpenAI's CRO stated in internal messaging.
  4. TradingKey Read →

    Side-by-side financial comparison with profitability timelines and win-rate data: Anthropic reports a 70% win rate against OpenAI for new enterprise buyers, adding commercial momentum to the accounting dispute.

    Anthropic's $30 billion annualized revenue surpassed OpenAI's $25 billion, marking the first time Anthropic overtook its competitor in revenue scale.
  5. TheStreet Read →

    Frames this as a $3.6 trillion AI company pipeline moment and examines OpenAI's unit economics: losing $1.22 per revenue dollar raises questions about whether the $852B valuation survives public market scrutiny.

    "We recently submitted a confidential S-1. We expect it to leak so we're just announcing it."
  6. 24/7 Wall St. Read →

    Maps Amazon's three-way exposure as cloud landlord, silicon vendor, and equity holder: Anthropic's IPO valuation now functions as a revaluation catalyst across Amazon's interconnected revenue streams.

    Amazon recorded $16.80 billion in pre-tax investment gains tied to Anthropic inside Q1 net income, helping lift quarterly net income to $30.25 billion.
  7. Gotrade Read →

    Retail-investor framing: until direct public listings arrive, Microsoft and Amazon/Alphabet remain the only equity proxies, tethering retail stock narratives directly to the outcome of the accounting dispute.

    OpenAI carries a post-money valuation of $852 billion. The company said its listing timing is undecided and may be a while.

Originally reported by bnnbloomberg.ca

Read the original article →

Original headline: Reuters: OpenAI Tells Investors Anthropic Overstates Revenue by Billions in Gross-vs-Net Accounting Dispute as Both Race to IPO