# Amicus brief urges D.C. Circuit to toughen Google's AI antitrust remedy

Published: 2026-08-08T08:17:58.255Z · Source: PPC Land (https://ppc.land/google-faces-bipartisan-brief-urging-tougher-remedy-over-21-ai-model-share/)
Source date: 2026-08-08
Entities: google, ai-litigation

Joel Thayer, president of the Digital Progress Institute, and Asad Ramzanali, a former White House OSTP official, filed a 34-page amicus brief on August 4 with the D.C. Circuit Court of Appeals, per PPC Land. Filing in their personal capacities in support of the DOJ and state plaintiffs, they argue Google's search monopoly financed its AI expansion — citing Google's 21% share of foundation model API revenue against a combined 88% for Google, OpenAI and Anthropic — and ask the appeals court to strengthen, not narrow, Judge Amit Mehta's six-year data-sharing and syndication remedy as Google's appeal proceeds.

Why it matters: The filing argues AI market concentration should be litigated as an extension of the search antitrust case, raising the stakes for whatever data-sharing remedy survives Google's appeal.

## What this answers

**Is Google's antitrust case tied to its AI business?**

Yes — an August 2026 amicus brief filed with the D.C. Circuit argues Google's search monopoly financed its AI expansion and urges the court to toughen, not weaken, the remedy as Google appeals.

**What share of AI model API revenue does Google have?**

About 21% as of December 2025, per the brief, with Google, OpenAI and Anthropic together controlling 88% of foundation model API revenue.


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