GPT-6 Astra sets Minecraft record with blaze farm, ender pearls

Speaking on the a16z show, OpenAI president and co-founder Greg Brockman argued developers have been "retooling the world" to make software accessible to AI agents, and that computer use offers a simpler path.

A r/ClaudeAI user created a skill for Risograph-style illustrations after seeing a Claude Opus 5 animation post, then compared outputs from GPT-6 Astra and Fable 5.1. Results were shared as a Reddit gallery.

OpenAI is in early talks with investors about a new round valuing it at more than $1.2 trillion, ahead of an IPO. Bloomberg reports the discussions are preliminary.

Koa was post-trained on Nvidia's open-weight Nemotron 3 Super using a synthetic dataset drawn from nearly three decades of enterprise CRM deployments. It ships as an option in Salesforce's Agentforce platform, pitched as an open-weight alternative that uses fewer tokens and never ingests customer data.

OpenShell's dev note describes writing formal proofs with the open-source Z3 library that a policy change proposed by an agent stays inside what the operator approved. The team argues human supervision stops scaling once hundreds of agents run for hundreds or thousands of hours.