Rex (YC S26)

AI Operations Partner for Enterprise Order to Cash.
Rex is backed by Y-Combinator.

[Braintrust @braintrust]

Rex is an AI-native service for automating order-to-cash. From day one, their engineers made a deliberate investment to trace every agent's touchpoint using Braintrust.

Then the @rexdotinc team built evals against production data to drive model selection, latency optimization, and auditing of customer-specific operating procedures.

Read more → https://t.co/V7eSJ5RYd5

[Merlin @merlinkafka]

@synthesiaIO serves 90% of the Fortune 100. Their finance team partnered with @rexdotinc to transform order-to-cash into an AI-native operation.
Today we’re sharing the story.

https://t.co/7f83Y4wIBR

[Rex (YC S26) @rexdotinc]

@notmiramurati @ycombinator @meleaai Thanks for including us!

[WorkOS AuthKit @authkit]

Most early-stage startups don't think about enterprise sales. @rexdotinc went after Fortune 500s from day one. AuthKit is how they got the auth stack ready before the first security review.

Read more: https://t.co/5hYfmNuU8S

[Rex (YC S26) @rexdotinc]

We're coming out of stealth and announcing Rex to the world.

[Rex (YC S26) @rexdotinc]

Hello, meet Rex.