SHELFCRITTER AI Digest

MODEL

Grok 4.7

modeltopic-notexai

Overview

Grok 4.7 is xAI‘s September 21, 2026 frontier-model release, extending the Grok family beyond Grok 4.5 and Grok 4.6. Landed on HN at 526 pts · 462 cmts (x.ai/news/grok-4-7) with 462 comments of debate on capability claims. A US frontier release landing the same day as MiMo v2.6, not a Chinese-lab release.

Timeline

  • 2026-09-22-AI-Digest — xAI released Grok 4.7 with 462 comments of debate on capability claims — keeps xAI in the frontier-model conversation and signals continued rapid iteration. A US frontier release landing the same day as MiMo v2.6. Plausibly not yet scored on the Aider polyglot leaderboard, which has sat unmoved for a week; read as measurement lag, not eval saturation.

  • 2026-10-01-AI-Digest — Grok 4.7 (Sept 21, $2/$6) is one of four frontier labs now sitting on the convergent mid-tier line after Google ships Gemini 4 Argon at $2/$10 intro. Four frontier labs on the same mid-tier line within a single quarter — Grok 4.7 ($2/$6, Sep 21), Claude Sonnet 5.5 ($2/$10, Sep 28), GPT-6.1 Sol ($2/$10, Sep 29), and Gemini 4 Argon ($2/$10 intro, Oct 1) — with xAI the per-output undercut below the cluster. Framing to carry: convergent competitive repricing, not coordination, and the standard rate on Argon is $4/$20, so the floor may not hold through 2027. Grok 4.7 at $2/$6 is the per-output low-end of the cluster regardless of Argon’s intro/standard split.

Key Developments

  1. Frontier Iteration Cadence at xAI: Grok 4.7 is xAI’s next Grok-family iteration after Grok 4.5 and Grok 4.6 — the release cadence keeps xAI in the frontier-model conversation.

  2. Same-Day US Landing With Chinese Open-Weights: Grok 4.7 landed the same day as MiMo v2.6 and within 24 hours of Kev — three headline releases inside the same 48-hour window, with Aider polyglot measurement lag as the load-bearing corpus read on the leaderboard’s stillness.