Grok ships three frontier models in 9 weeks: 4.5, 4.6 and 4.7 back-to-back
XFreeze · x · 2026-09-22
According to this post, xAI released three frontier model generations in barely nine weeks — Grok 4.5 on July 16, Grok 4.6 on August 12, and Grok 4.7 on September 21 — with each iteration reportedly improving coding, agentic work, knowledge tasks, long-running reasoning and efficiency. The pace is unusually fast for major version bumps, though claims are unverified third-party observation.
Related event: xAI Ships Three Grok Frontier Models in Nine Weeks(2 posts)→
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