Inside xAI and Future of Millions of Emulated Humans

Interview with Sulaiman Ghori, Member of Technical Staff at xAI. XAI will emulate millions of humans via the distributed Tesla chips. HW4 good enough

AI and XAI are hardware constrained and the biggest edge for XAI is speed of hardware deployment.

Predicting future bottlenecks
Elon excels at forecasting bottlenecks months and years ahead and working backwards. XAI Teams adopt this by focusing on core metrics (financial/physical). Eliminate perceived software limitations (latency, overhead) for 2–8× gains.

Macrohard model iterations happen daily and multiple times a day (even from pre-training). Hardware racks start training within hours (sometimes same day/few hours) of setup—vs. days/weeks elsewhere. Supercompute team removes typical barriers.

He joined XAI after startup attempts and outreach from Greg Yang.

Bootstrapping off the Tesla network

Potential to deploy millions of human emulators cheaply on idle Tesla vehicles (Hardware 4, networking/cooling/power already present). There are about 3 million HW4 cars in the USA. Pay owners to lease compute time—more capital-efficient than AWS/Oracle/NVIDIA hardware. Enables massive scale without new buildouts.

What is Macrohard
Digital equivalent of Optimus: emulate any keyboard/mouse/screen-based human digital task at fraction of cost + 24/7 uptime. No software adoption needed. Rollout will be slow at first, then rapid scaling (1,000 → 1M emulators not infrastructure-limited).

How Elon Deals with Problems or Fires
Immediate action lke phone calls to vendors for patches next day, side-by-side fixes.

Blockers resolved in hours/days.

Frequently asks “How can I help make this faster?” at end of meetings.

What it’s like working at xAI
High freedom/responsibility. Jump projects, own components quickly. Overlap/flow between 2–3 projects. Fast cycles (24-hour Imagine rollout iterations). Intense pushes (weekends, long office stretches). Talent density requires hard work to keep up.

Using 80 mobile generators + battery packs to balance load at their data centers
Seamless switch to 80+ mobile generators during high municipal load to avoid grid impact. Batteries enable fast megawatt-scale up/down response (vs. slow physical generators). Layered: capacitors → batteries → generators → grid.

How they built Colossus in 122 days
Temporary/short-term land lease via carnival exception for fast permitting. Assumed resources available; high utilization with many parallel runs by small teams.

Work backwards & figure out the highest leverage thing you can be doing

Start from revenue targets (e$10–100B), reverse-engineer physical/software needs. Highest leverage first; physical requirements last.

How xAI hires
Hackathons (high ROI even for few hires). High value-per-commit (~$2.5M per main repo commit). Seek simple solutions.

Challenge assumptions/requirements

– include deliberate errors/impossibles to test pushback.

Everyone’s an engineer
Flat structure. Managers code. Even sales/enterprise teams train models. Everyone contributes technically.

Testing human emulators as employees
Internal virtual “employees” → funny incidents (invites to non-existent desks). Generalization better than expected (handles untrained tasks flawlessly).

4 thoughts on “Inside xAI and Future of Millions of Emulated Humans”

  1. I see why billionaires are excited by AI, I don’t understand why common people and even millionaires are not simply terrified and enraged.
    The aim of billionaires is to replace salaries with AI infrastructure costs and electricity costs. Billionaires are the kind of people that value wealth above anything else, even more than the luxury that such wealth can buy (if this was not the case they would have stopped working when they were just millionaires or centimillionaires). They will not create an AI utopia.
    And to date nobody provided a good analysis demonstrating otherwise.

  2. A good explanation of MacroHard. It makes sense as developing the abstract computer use equivalent of Optimus. That’s both creating Agentic AI that can do any task a human does at a screen, keyboard, mouse, AND reinventing the software applications that are used in AI versions. As Optimus is deployed and tested within Musk enterprises at physical tasks, MacroHard agents would be deployed in computer using jobs. Both could use the same inference hardware.

  3. I still find it ironic that leaders in AI say that thanks to AI we will soon no longer need to work, when the employees of these companies have to work day and night and have virtually no free time for themselves !

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