Speaking of the major LLM players, xAI is the only one that hasn't been monetizing developers and programmers until now. It seems they are starting to change that.

Cursor and xAI
https://techsifted.com/posts/spacex-cursor-acquisition-april-2026/
SpaceX/xAI has secured an option to acquire Cursor for $60 billion. If the acquisition does not go through, Cursor will still receive $10 billion for partnership and joint R&D work. This is a right to buy the company later at a fixed price.

In March, several key Cursor engineers moved to xAI. In May, Cursor began a massive international expansion and hiring push. If xAI's infrastructure makes future versions even more powerful, most Cursor users will likely stay.

The developer reaction has been mixed. Part of Cursor's audience chose it specifically for its independence—not being OpenAI, Microsoft, or Google, but offering any model of choice. Now that the service is potentially joining Elon Musk's ecosystem, it remains unclear whether this will impact the priority of the Grok model.

Fine-tuning Grok on Cursor Data
https://x.com/elonmusk/status/2055914584373141906
On May 17, xAI completed the primary training of the massive Grok V9 model (1.5 trillion parameters). The next stage is supplemental training using data from Cursor. This will allow Grok models to significantly improve their coding skills, as Cursor has collected a vast database of high-quality code from developers.

Grok Build CLI Launch
https://x.ai/news/grok-build-cli https://x.ai/cli
On May 14, xAI released an early beta version of Grok Build—a code generation agent: task planning, sub-agents for parallel work, headless mode for scripts, support for AGENTS.md, diffs, plugins, etc. It’s a fully-featured tool and a direct competitor to Claude Code and similar instruments.

However, it is currently only available with a SuperGrok Heavy subscription ($300/month with a three-day trial) and runs in the terminal only on Linux/macOS (Windows via WSL). Updates are released almost daily, and users are already praising its speed and quality. Elon Musk is personally asking for feedback.

https://www.youtube.com/watch?v=l_dAOKHLiYw

xAI is currently offering a promotional SuperGrok Heavy subscription: instead of $300 per month, the rate is temporarily around $99 for the first six months. However, users are complaining that even the Heavy plan doesn't feel "unlimited," as real limits can change depending on system load.

#grok