Anthropic

Frontier lab United States Privately held, venture-funded

Public-benefit corporation publishing the Claude family. All weights are closed and API-served, so entries are catalogued from third-party measurement with no hash of our own.

Who they are

Anthropic is a frontier lab based in the United States, documented at anthropic.com. All weights are closed and API-served, so entries are catalogued from third-party measurement with no hash of our own.

How they are funded

Privately held, venture-funded. Public-benefit corporation. Its two largest investors are cloud providers that also resell its models.

Amazon	United States
Google	United States
Spark Capital	United States
Lightspeed	United States
Menlo Ventures	United States

Unverified. Ownership and funding are compiled from public reporting as of 2026-05. Unlike the hashes and signatures in this registry, Sovereign Frontier cannot attest any of it, and private-company funding changes faster than this page does. Treat it as a starting point for your own due diligence, not as evidence.

What they publish here

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