If you’ve ever spent 20 minutes getting an AI coding assistant up to speed on your project’s quirks, only to watch that context evaporate the moment your session ends, xAI just built a fix for that.

Grok Build v0.2.3 shipped with a new /remember command that lets developers save persistent notes across sessions. The AI coding tool now has a notepad that doesn’t get wiped clean every time you close the window.

What the update actually includes

The /remember command comes with rich side-by-side previews and fullscreen editing accessible via Ctrl+F, along with a # shortcut for quick access to saved notes.

Grok Build v0.2.3 also introduced two companion commands that round out the memory system. The /flush command handles session saving, while /dream supports what xAI describes as layered memory.

Beyond memory, the release packed in smarter goal tracking and a new /config-agents command. There’s also a plan mode that lets developers review proposed tasks before the tool executes them.

The context problem in AI coding

Grok Build claims a token context window capacity of up to 10 million tokens in certain configurations. But even massive context windows don’t solve the persistence problem. When the session ends, those 10 million tokens of understanding go with it, unless you have a mechanism to carry the important bits forward. That’s precisely what /remember is designed to do.

Where this fits in the competitive landscape

Grok Build launched in beta on May 17, 2026, exclusively targeting SuperGrok Heavy subscribers at a starting price of $300 per month. The primary competitor in this space is Anthropic’s Claude Code.

xAI, headed by Elon Musk, has been steadily building out its developer tooling since Grok’s initial launch. The v0.2.3 update arriving just 10 days after the beta launch suggests an aggressive iteration pace.