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Is Grok Build 0.1 out? Yes, since May 19, 2026

Yes. Grok Build 0.1 was released on May 19, 2026.

A browser notification for each confirmed release in this family. No account or email.

Have you used it? Grok Build 0.1

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Lab
xAI
Family
Grok
Release date
Source
xAI · Release notes

What changed

  • context -74 % · Context window compared with Grok 4.3, same tier in this family. Went from 1M tokens to 256k tokens.
  • price -20 % · Prompt price compared with Grok 4.3, same tier in this family. Went from $1.25 / MTok to $1.00 / MTok. Lower is better.

About Grok Build 0.1

Grok Build 0.1 is SpaceXAI’s fast coding model trained specifically for agentic software engineering workflows. It supports text and image inputs with text output, and is optimized for interactive coding...

Next Grok model to watch

Questions

When was Grok Build 0.1 released?
Grok Build 0.1 was released on May 19, 2026.
Who makes Grok Build 0.1?
Grok Build 0.1 is made by xAI.
What comes after Grok Build 0.1?
Grok 4.5, released on July 8, 2026.