How Cursor Router chooses the right model for the task

Mixture-of-Kittens: our open-source MoE megakernel for NVL72s

How we set up our cloud agent environment

Agent swarms and the new model economics

Grok 4.5 Model Card

Introducing Grok 4.5

Reward hacking is swamping model intelligence gains

Governing agent autonomy with Auto-review

What we’ve learned building cloud agents

Introducing Composer 2.5

Bootstrapping Composer with autoinstall

Continually improving our agent harness