AIG Partners With Amwins, Blackstone to Launch Lloyd’s Syndicate Using Palantir

December 18, 2025 by Chad Hemenway

American International Group (AIG) said it has teamed up with specialty insurer Amwins and asset manager Blackstone to launch a Lloyd’s syndicate, using its relationship with Palantir to assist in assessing the portfolio.

AIG said Syndicate 2479 will start underwriting $300 million in premium, managed by AIG’s Talbot Underwriting, on Jan. 1.

The portfolio is representative of a broad and highly diversified cross section of Amwins’ delegated authority premiums of about $6 billion. Palantir’s Foundry—an ontology operating system—was deployed to build a balanced portfolio with specific characteristics for the special purpose vehicle.

“Our partnership with Amwins and Blackstone represents the next level of innovation, technical modeling and use of [generative artificial intelligence] for portfolio underwriting,” said Peter Zaffino, chairman and CEO of AIG, in a statement.”

“The formation of Syndicate 2479, which includes capital investment provided by Amwins and Blackstone, further advances our deployment of GenAI through a capability that can evaluate risk with more data and analytics at the individual level to optimize the special purpose vehicle,” Zafino added. “We believe this capability will unlock future opportunities for expansion and innovation in specialty and other lines of business.”

In the long term, this “novel structure” will use Palantir’s Foundry and large language models to determine whether Amwin’s program portfolio aligns with Syndicate 2479’s risk appetite by evaluating risk characteristics. AIG said it has developed an ontology to enable the models to access more than four million industry data points to expand underwriting capabilities.

Palantir’s CEO Alex Karp said the company is “proud to partner with AIG in its visionary approach to transform the insurance industry.”

“AIG’s deployment of Palantir’s software helps drive new partnership opportunities and efficiencies as exemplified by this new SPV,” he said in a statement.

Zaffino referenced the work AIG has done with Palantir and others during an August conference call during which he said it was the company’s intent to “create a digital twin of our business.”

In August, Zaffino said ontology would be the foundation to technical reviews, provide claims personnel with insight and tools, enhance decision-making, and improve service to clients.

In philosophy, ontology is the study of being—the nature of existence. Ontology in AI provides concepts to help AI understand the data it is processing and leverage it to produce operational results. A blog on Palantir’s website said ontology is about making decisions within an enterprise.

“We are excited about this new partnership which allows us to invest aligned capital alongside our multiline dedicated underwriting portfolio,” said Scott Purviance, CEO of Amwins. “In addition, it will facilitate our ability to create new programs and build long-term sustainable capacity. AIG’s underwriting knowledge and GenAI capabilities truly facilitated the creation of this new syndicate.”

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