OpenAI pulls out of Caltech math hackathon after mathematicians' open letter

OpenAI has asked members of Congress for guidance on whether coordinating an industry-wide frontier AI slowdown would violate antitrust law, per WIRED. Chief scientist Jakub Pachocki argued in a blog post for "coordinating to slow down future development." A bipartisan bill, the Collaboration on Adversarial Threats and Security Risks Act, would permit such coordination.

Pizza Bot gives developers an email-style inbox for managing AI agents that run in the background, addressing the poor fit between chat interfaces and long-running agents. AWS released it as an open-source application.

ToolGrad reverses the usual pipeline by generating a ground-truth tool-use chain first, then annotating its user prompt in a single LLM step. Google says this yields more complex long-horizon tool-use data at lower cost than DFS-based approaches like ToolBench and ToolACE.

Redis LangCache is a fully managed semantic cache aimed at production LLM apps and RAG pipelines that field the same intents thousands of times a day in different phrasings. Redis claims cache hits return up to 15x faster than a fresh billed request.

Projects maintains context over months of work, delegates to thousands of subagents, and runs recurring work unprompted; it is available in beta rolling out to all users today. Cursor says new users merge 30% more PRs, while users who primarily use Projects merge six times as many.