Grok 4.5 and Grok 4.6: where xAI's flagship models shipped

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Grok 4.5 reached every consumer surface on 22nd Jul 2026, and Grok 4.6 became the flagship on 12th Aug. Within nine days 4.6 reached GitHub Copilot, Amazon Bedrock and Google's enterprise platform.

xAI ships a flagship model and then pushes it into other companies' developer products within days. This page follows the Grok 4 line by the surfaces it reached.

Grok 4.5 went everywhere on 22nd Jul 2026: grok.com, X, iOS and Android. The company framed it for everyday questions and knowledge work.

Grok 4.6 became the flagship on 12th Aug, aimed at long-running agents. It reached GitHub Copilot on 14th Aug, Amazon Bedrock on 19th Aug and Google's enterprise platform on 21st Aug.

Each step below links to its entry and primary source on our Grok tracker.

Rollout log

Sources

Frequently asked questions

What is the current Grok model?

Grok 4.6, xAI's flagship since 12th Aug 2026, aimed at long-running agents and visual work.

Where can developers use Grok 4.6?

GitHub Copilot since 14th Aug 2026, Amazon Bedrock since 19th Aug and Google's Enterprise Agent Platform since 21st Aug. Microsoft Foundry followed, per xAI's posts.

The Copilot and Bedrock routes both charge $2 per million input tokens and $6 per million output.

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Cite this page: Keywords Everywhere, "Grok 4.5 and Grok 4.6: where xAI's flagship models shipped", last updated 21st Aug 2026, /kw/news/grok-updates/grok-4/