xAI published a release note for Grok 4.6 on August 12 — a point bump on the 4.x line rather than a new generation, at least by the version number.
The post drew 435 points and 423 comments on Hacker News inside about 12 hours, which is a lot of attention for an incremental release and worth reading for the practitioner reactions.
Worth noting what is not here: as of writing, xAI's own announcement is the only source. There is no independent benchmarking, no third-party pricing confirmation, and no outside verification of any capability claims. Treat the vendor numbers accordingly until someone reproduces them, and check the HN thread for early hands-on reports before rewiring anything.
Sources: xAI announcement, HN discussion