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Products & ServicesEvent: September 4, 2026

Hallstone Ventures notes that Anthropic shipped one model in two forms, Fable for anyone who can pay and Mythos for partners it vets, with the U.S. government involved in the program.

Published

Signal category

Products & Services

Quote

Anthropic shipped one model in two forms. Fable for anyone who can pay, Mythos for partners it vets, with the U.S. government involved in the program.

Andy Beach|Hallstone Ventures team

Company

Hallstone Ventures

Backing AI infrastructure for the modern attention economy.

Industry
Venture Capital and Private Equity Principals
Location
Los Angeles, US
Company size
21 employees

Hallstone Ventures is a Los Angeles-based seed fund backing founders building AI-driven infrastructure for the modern attention economy. We invest in the foundational software layer behind how media is created, distributed, measured, protected, monetized, and experienced. Our focus spans creator infrastructure, AdTech and monetization rails, immersive and spatial media systems, and frontier media technologies. Led by media-technology operator Seth Hallen, Hallstone pairs sector focus with a 70+ LP network of operators and domain experts across media, entertainment, advertising, and technology. We back founders building durable technology for the next generation of creators, brands, platforms, and media companies. Fund I is closed to new investors. Nothing here should be construed as an offer to sell or solicitation of an offer to buy securities.

Founded 2025

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