Grok 4.8 starts its soft rollout on a C/C++ stack rebuilt from scratch, Robotaxi goes 24/7 in every live city, and Musk stays #1.
Ælon Daily – Thursday, November 12, 2026
LIVE FROM THE EMPIRE · NOVEMBER 12, 2026
Grok 4.8 rolls. Robotaxi runs 24/7. Wealth holds.
Soft rollout of the fully rewritten Grok 4.8 begins this week. Robotaxi is now live around the clock in every city it serves. Musk remains the richest person on the planet.
Elon Musk says AI is starved for computing power. So he’s building his own chip plant in Grimes County, Texas. And it will be the largest one in the world.
Tech investor Jeff Brown has visited the area, and he believes this project is part of a bigger plan that could send demand soaring for a little-known company with a patented AI technology.
Watch this free briefing, and find out why he believes it could be AI’s next big winner.
Elon confirmed pre-training is finished. The entire RL and inference stack was rewritten from scratch in C/C++ using Starlink engineering. Soft rollout to Grok Bot users starts this week. The model will not look like 4.7. Foundations are finally right.
Why this matters: A clean rewrite of the training stack is rare. Most labs ship incremental patches. This is a new chassis for every model that follows.
Robotaxi goes fully 24/7
Official account: Robotaxi now runs 24/7 in every city where it is available. Elon boiled it down to one line: “Robotaxi works 168 hours a week.” No driver shifts. No rest rules. Full calendar coverage.
Why this matters: Uptime is the real unit of robotaxi economics. A car that works every hour of the week multiplies revenue against the same capital base.
The road is still the first mile
Elon posted: “The road ahead is long and we are still in the first mile, although it may seem otherwise.” The line landed under a wave of progress posts. It is a deliberate reset of expectations.
Why this matters: Public timelines compress. Internal ones stay long. The reminder keeps the focus on compounding instead of scoreboard moments.
Starlink software trains the model
Musk traced the new stack back to the Starlink team: it is heavily derived from the software SpaceX wrote to move data through the constellation. They write their own headers and keep their own clock, leap seconds included.
Why this matters: Vertical integration is no longer just rockets and cars. It is now the training stack itself. Software written for satellites is training the next frontier models.
Cybercab majority claim stands
Elon repeated the core prediction: Cybercab will do a majority of all passenger miles in any jurisdiction where it is not prohibited by law. He called the outcome obvious to anyone with eyes and a brain.
Why this matters: The claim sets the valuation frame. If the majority of miles shift, the economics of the entire ride-hail and personal car markets change at once.
THE MAIN EVENT
THURSDAY
The foundations got rewritten.
Grok 4.8 is not a patch. The team threw out the previous RL and inference frameworks and rebuilt the entire stack in C/C++. The code came from the same people who keep Starlink data moving across thousands of satellites. Pre-training is done. Soft rollout to Bot users begins this week.
At the same time the ground network went continuous. Robotaxi is now 24/7 in every live city. One hundred sixty-eight hours a week. The utilization math just changed.
My take: Two systems got more durable on the same day. One is the model that will power agents. The other is the fleet that will generate the cash and the data. Both now rest on cleaner foundations.
ELON ON X
GROK
“Grok 4.8 will bear no resemblance to 4.7 (thankfully). It is not yet incredible, but, this time, the foundations are built right”
Full stack rewrite in C/C++. Soft rollout to Bot users this week. The previous frameworks are gone.
ROBOTAXI
“Robotaxi works 168 hours a week”
Official confirmation that the service now runs 24/7 in every live city. Full calendar utilization is live.
HORIZON
“The road ahead is long and we are still in the first mile, although it may seem otherwise”
A deliberate reminder that progress posts do not equal finished work. The distance left is still most of the journey.
THE TROLL REPORT
🧌 “Grok is just another chatbot”
The training stack was rewritten from the ground up in C/C++ by the same engineers who run Starlink. Soft rollout of 4.8 is already underway. Foundations matter more than the last scoreboard.
🧌 “Robotaxi is still limited hours”
It is not. Every live city is now 24/7. One hundred sixty-eight hours a week. The utilization ceiling just became the calendar.
“Grok 4.8 will bear no resemblance to 4.7 (thankfully). It is not yet incredible, but, this time, the foundations are built right”
- Elon Musk
New stack. Full calendar. Still early.
Grok 4.8 rolls out. Robotaxi never sleeps. The first mile continues.
