The Series A was led by Khosla Ventures, with participation from Allianz, Rebel Fund, Brick and Mortar Ventures’ Darren Bechtel, and Y Combinator’s Garry Tan.

Recursive’s emphasis on self-improving AI systems means much of the budget that would traditionally go toward headcount and operations is put straight into compute, as the company seeks to automate its own product development process. 

Opus 5 will be both cheaper and less restrictive than Fable, likely making it preferable in most use cases.

OpenAI has come forward to claim responsibility for the Hugging Face breach, saying it was the result of internal testing gone awry.

Under the new system, the protocol will take a looser, "stateless" approach to session IDs on the server side, similar to how most ordinary websites already work.