Which large banks lead in AI research, patents and partnerships?

Which banks disclose the most AI patents, research deals and partnerships?

The 30 highest of 124 banks with a patents-and-partners section on their page. Patents: the bank's disclosed count where it gives one, otherwise the rows listed (grants versus filings or applications). Providers: foundation-model and cloud-AI vendors named as partners. Ventures and research: investments, venture arms, labs, universities and open-source bodies named.

Each row quotes the bank's page on this site; the bank link opens the full record with every source. “Not disclosed” means the page records nothing on that point. Banks absent from the table have no evidence on this topic on their page.

Which AI model providers do the banks name as partners?

Foundation-model and cloud-AI providers named in the banks' patents-and-partners rows, counted across the banks with a record (a bank counts once per provider, whichever product it names).

How is this ranking computed?

Score = 2 × patent rows + 2 × disclosed patent numbers + model providers named + venture rows + research rows + total rows (capped at 8). A patent row is one whose item or description mentions a patent or a US patent number; it is a grant if it says granted or issued or carries a B1/B2 suffix, otherwise a filing or application. Providers match OpenAI, Anthropic, Google, Microsoft, Mistral, Cohere, Meta, NVIDIA, AWS, Databricks, Snowflake or Hugging Face in the item name. Ties by assets.

Every row comes from the bank page's patents-and-partners section, which cites its sources; patent numbers are quoted as the bank or an outlet reported them.

What are the caveats?

Patent counts are rarely disclosed and never on the same basis: some banks cite all patents, some AI-only, some applications pending. A filing is not a grant; the table keeps them apart.

Partnership rows record a named relationship, not its size; a pilot with a model provider and a multi-year cloud deal each count once. Non-US groups' records were researched the same way but their outlets differ.

How does this differ from the AI index?

The AI index does not read the patents-and-partners sections at all; this page is built entirely from them, plus patent numbers on the bank pages. The AI index and its method are on their own page; the technology leaders and generative AI guides are hand-written cross-bank tables with their own sourcing.