grok

Grok 4.6, Gemini 3.7 Flash, DeepSeek V4-Pro-0813, and GLM-5.3 shipped within three days of each other and not one is a new base model; the frontier is advancing by post-training, harness, and serving efficiency while every next-generation base stays in the oven.

On May 15, X pushed 18,263 lines of Rust and Python to its public algorithm repo, a full rewrite of the 2023 Scala stack around a Grok-based transformer, but the code does not build and the engagement weights are still missing.