When is Grok 4.6 coming out?

Elon Musk indicated Grok 4.6 is targeted for around August 7, 2026 — roughly two weeks after his late-July posts. xAI has not published an official date, so treat it as a tentative window, not a confirmed launch.

What is the difference between Grok 4.6 and Grok 4.7?

Per Musk's posts on X, Grok 4.6 is expected to be a ~1.5-trillion-parameter model with improved supervised fine-tuning and RL. Grok 4.7 is projected to be a larger ~2.1-trillion-parameter model arriving a few weeks after 4.6, with better token efficiency but slightly slower serving.

Should I wait for Grok 4.6 or use Grok 4.5 now?

Grok 4.5 is generally available today at $2/$6 per MTok with a 500K context window and strong price-performance. Given xAI's history of slipping dates, build on Grok 4.5 now — the API is stable and 4.6/4.7 are expected to be drop-in upgrades on the same platform.

Quick Answer

Grok 4.6 & Grok 4.7: What We Know (July 2026)

Published: July 30, 2026

The Short Answer

xAI is running a rapid-fire release cadence. After Grok 4.5 (generally available, $2/$6 per MTok, 500K context), Elon Musk teased two follow-ups on X in late July 2026: Grok 4.6 (~1.5T parameters, targeted around August 7, 2026) and Grok 4.7 (~2.1T parameters, a few weeks later). Neither has an official xAI launch page yet — these are Musk’s tentative signals, not confirmed ship dates.

The Roadmap At A Glance

Model	Status	Est. size	Target window	Key claim
Grok 4.5	GA now	—	Shipped July 2026	$2/$6 MTok, 500K context, ~2x token efficiency
Grok 4.6	Teased	~1.5T params	~Aug 7, 2026	Better SFT + RL
Grok 4.7	Teased	~2.1T params	~Late Aug 2026	Larger, more token-efficient, slightly slower
Grok 5	In training	—	Unannounced	No timeline given

What’s Actually Confirmed vs Speculation

Confirmed today: Grok 4.5 is live, priced at $2/$6 per million input/output tokens, with a 500K-token context window (down from Grok 4.3’s 1M) and an efficiency pitch — solving agentic tasks in roughly half the steps of rivals.
Musk-signaled (treat as tentative): the ~Aug 7 date for 4.6, the 1.5T / 2.1T parameter counts, and the 4.7-follows-in-weeks cadence. These came from X posts, not an xAI blog post or docs page.
Not confirmed: Grok 5. Musk has said it is “in training” but given no release window.

Why The Fast Cadence?

xAI is compressing its release cycle to keep pace with Anthropic (Claude Opus 5, July 24), OpenAI (GPT-5.6 Sol, July 9), and Google (Gemini 3.6 Flash, July 21). The strategy trades polish-per-release for velocity: smaller version bumps, shipped more often, each leaning on the efficiency argument rather than topping raw intelligence leaderboards.

What To Do Now

Don’t wait. Grok 4.5’s API is stable and cheap, and the 4.6/4.7 upgrades are expected to be drop-in on the same endpoint. If you’re cost-sensitive and running high-volume agents, adopt Grok 4.5 today and re-benchmark when 4.6 actually ships — xAI dates have slipped before. Note: Grok 4.5 is reportedly not available in the EU under the AI Act, so check regional availability before committing.

Sources

xAI — Grok 4.5 launch: x.ai/news/grok-4-5
Economic Times — Musk teases Grok 4.6 and 4.7: economictimes.indiatimes.com
crypto.news — Grok 4.6 Aug 7 launch date: crypto.news/grok-4-6-gets-aug-7-launch-date-grok-4-7-follows