Sources: Cursor was a top-five OpenAI customer at the start of 2026; OpenAI estimated in spring that Cursor would bring in $1B+ in annualized revenue for OpenAI (Maxwell Zeff/Wired)

Cursor was identified as a top-five OpenAI customer at the beginning of 2026. OpenAI projected in the spring that its partnership with Cursor would generate over $1 billion in annualized revenue. This information indicates a significant financial relationship between the two companies, with Cursor contributing substantially to OpenAI's revenue streams.