Elon Musk-led artificial intelligence (AI) company xAI has officially open-sourced its Grok language model, after Musk announced plans to do so just under a week ago.
Musk said last Monday that xAI would make Grok open-source, and on Sunday, the company announced the open release of the language model in a post on its website.
“We are releasing the base model weights and network architecture of Grok-1, our large language model,” xAI writes in the post. “Grok-1 is a 314 billion parameter Mixture-of-Experts model trained from scratch by xAI.”
“This is the raw base model checkpoint from the Grok-1 pre-training phase, which concluded in October 2023,” xAI adds. “This means that the model is not fine-tuned for any specific application, such as dialogue.”
“We are releasing the weights and the architecture under the Apache 2.0 license.”
The news comes following Musk’s ongoing criticisms of ChatGPT-maker OpenAI, which he helped to found but later left, for abandoning its original intent to be a non-profit with an open-source model. OpenAI received investments from Microsoft of $1 billion in 2019, and $10 billion in 2023, and Musk has pointed to the closed-source, for-profit model as an issue.
On X, the Grok account replied to Musk’s original announcement of plans to open-source the xAI model with a joke about opening its weights to the public:
░W░E░I░G░H░T░S░I░N░B░I░O░
— Grok (@grok) March 17, 2024
The ChatGPT account replied, saying, “stole my whole joke,” to which Musk responded by saying, “Tell us more about the ‘open’ part of OpenAI …”
Last month, Musk also filed a lawsuit against OpenAI and co-founders Sam Altman and Greg Brockman for breaching contracts by pursuing a for-profit, closed-source mission. OpenAI followed up with a blog post claiming that Musk had agreed to move to a for-profit model as early as 2015.
In January, Musk denied claims that xAI was raising capital, saying that he hasn’t had any conversations regarding plans to do so. Musk launched xAI last July as a competitor to OpenAI and other AI companies, later launching the Grok language model in November.
What are your thoughts? Let me know at zach@teslarati.com, find me on X at @zacharyvisconti, or send your tips to us at tips@teslarati.com.

News
Tesla is back on top in Norway with new Model Y starting deliveries
Tesla registered over 1,000 Model Ys in Norway this March, more than twice the tally of its closest rival, the Volkswagen ID. Buzz.

Tesla has staged a comeback in Norway’s electric vehicle market with the launch of the new Model Y. With deliveries starting domestically, the new all-electric crossover has reclaimed its spot as Norway’s most registered car this month and year-to-date.
Tesla’s results in Norway this month could be seen in Elbilstatistikk, which closely tracks EV registrations in the country.
New Model Y Boost Tesla in Norway
Data from Elbilstatistikk revealed that Tesla registered over 1,000 Model Ys in Norway this March, more than twice the tally of its closest rival, the Volkswagen ID. Buzz, which has over 400 registrations. The new Model Y’s comeback also resulted in the all-electric crossover being the county’s top electric vehicle year-to-date, with 2,032 registrations.
The new Model Y’s dominant performance in Norway hints at the vehicle’s strong appeal to consumers, especially considering the controversial nature of the company’s CEO, Elon Musk, today. Sentiments against Musk have been notable as of late, resulting in some Tesla owners feeling the brunt of vandalism and abuse incidents in the United States, Canada, and some areas of Europe.
High Hopes for New Model Y
The Model Y comprises a huge portion of Tesla’s global sales. During Tesla’s Q1 2025 All-Hands meeting, Elon Musk highlighted that the Model Y is the company’s most successful vehicle so far. Such comments are accurate considering that the Model Y classic became the world’s best-selling vehicle by volume in both 2023 and 2024. As per Musk during the recent All-Hands meeting, however, the new Model Y should be able to achieve such heights this year as well.
“Model Y became the best-selling vehicle in the world. You know FYI, we do make the best. It’s like, how are we doing in our popularity? Well, we actually literally make the best-selling car on Earth, of any kind. That’s two years in a row. And it’s going to be the best-selling car on Earth again this year,” Musk predicted.
News
Tesla new Model Y needs a telescope to see its closest competitor in China
With the new Model Y now being delivered to domestic customers, Tesla China’s new vehicle registrations have seen a notable rise.

Tesla China’s vehicle sales saw a strong recovery once the new Model Y started customer deliveries. This could be seen in China’s rankings for premium battery electric SUVs priced from RMB 200,000 to RMB 300,000 during the week of March 10-16, 2025.
As per the week’s rankings, the new Model Y’s sales are so far ahead, it would need a telescope to see its closest competitor.
Tesla China’s February Results
A look at the mainstream news cycle would show that Tesla China saw a notable drop in February. During the month, Tesla sold 30,688 vehicles wholesale, a 51.47% decline from January’s 63,238 and a 49.16% slide from the 60,365 that were sold wholesale in February 2024.
It should be noted that the new Model Y only started local deliveries in the final days of February. This meant that for the majority of the month, Tesla China was mostly clearing out its inventory of Model Y classic units. This essentially resulted in Tesla China’s strongest seller being throttled for most of February. This will likely not be the case this March.
New Model Y’s March Comeback
With the new Model Y now being delivered to domestic customers, Tesla China’s new vehicle registrations have seen a notable rise. During the week of March 10-16, 2025, Tesla China saw 15,300 new vehicle registrations, the highest for the quarter. These figures were bolstered by the new Model Y, whose local sales reached 9,451 units during the week.
With 9,451 units sold during the week ending March 16, the new Model Y became China’s best-selling premium electric SUV priced from RMB 200,000 to RMB 300,000. This is a notable accomplishment for the new Model Y, especially since its closest competitor, the Zeekr 7X, was able to sell just 1,390 units during the same week. That’s just about 14% of the new Model Y’s sales.
Tesla China’s Potential Q1 Results
Considering that Tesla China did not start local deliveries of the new Model Y until late February, it would not be surprising if the electric vehicle maker’s first quarter delivery numbers show a year-over-year decline. A clearer view of the new Model Y’s overall effect on Tesla China’s local sales would likely become more evident in the coming quarters.
News
Tesla to explore the limits of casting with Cybercab line
Tesla expects to produce 2 million units of the Cybercab per year.

Tesla tends to push the limit of automotive manufacturing processes. This was true for the Model Y and its front and rear megacasts, and it will likely also be true for the Cybercab, which is expected to start volume production sometime in 2026.
This was, at least, as per CEO Elon Musk during the company’s Q1 2025 All-Hands meeting.
Cybercab Potential
While the Model Y and Model 3 are already high-volume vehicles, Tesla expects to produce vastly more Cybercabs per year. During the Q3 2024 earnings call, the CEO explained that Tesla is aiming to produce at least 2 million Cybercabs annually.
At 2 million units per year, Musk noted that the Cybercab will be produced in more than one factory. In 2026, however, expectations are high that the Cybercab will be produced in Gigafactory Texas.
One Cybercab every 5 Seconds
Tesla has highlighted in its Q4 2024 Update letter that the Cybercab will be produced using the company’s revolutionary “unboxed” process, which is optimized for speed and efficiency. Musk highlighted this during the Q1 2025 All-Hands meeting, when he stated that the Cybercab’s lines don’t even look like a regular automotive production line.
“We do want to scale up production to new heights obviously with the Cybercab. Cybercab is not just revolutionary car design. It’s also a revolutionary manufacturing process. So I guess we probably don’t talk about that enough, but if you’ve seen the design of the Cybercab line, it doesn’t look like a normal car manufacturing line. It looks like a really high-speed consumer electronics line.
“In fact, the line will move so fast that that actually people can’t even get close to it. I think it’ll be able to produce a car ultimately in less than 5 seconds. Can you imagine a car coming off the line in less than 5 seconds? That’s like, ‘Whoa.’ Which means casting’s got to happen fast. I mean we got to jam the the liquid metal in and cool it down real fast,” Musk said.
The Limits of Casting
Hitting an insane target such as one Cybercab every 5 seconds would require Tesla to completely rethink vehicle production. During the All-Hands meeting, Musk noted that Tesla would probably require even larger casting machines that would be capable of producing multiple components at once. Overall, the CEO seemed excited about the idea, as he noted that it would be fun to see just how big casting machines could be.
“I guess maybe we need to just get even bigger casting machines? Sure why not, you know, I’m down. 50,000 tons. Cause then we could do like five at a time or something. I’m trying to think like how do you scale castings, because you got liquid metal, metal’s got to cool, and you’ve got to automate getting all the bits and pieces off the casting so it’s usable?
“And that’s actually kind of how they do it in small-volume castings. They have a casting block that’ll make, you know, 100 Matchbox cars at a time. Maybe we can just make that real big. I mean, we have the Cathedral of Castings back there. So yeah, let’s do that. I mean, let’s see what is the limit of physics of how big can a casting machine be. Let’s find out. I’m down. Let’s have some fun here, push the limits of technology,” Musk stated.
-
Elon Musk1 week ago
Elon Musk roasts owners of this car brand after another Tesla vandalism incident
-
Elon Musk4 days ago
Elon Musk confirms two measures Tesla is taking to fight vandalism
-
Elon Musk2 weeks ago
President Donald Trump buys a Tesla at the White House – Here’s which model he chose
-
News1 week ago
U.S. AG Pam Bondi: Tesla Molotov attack suspect facing up to 20 years in prison
-
News2 weeks ago
Rivian supports Tesla despite all the Elon Musk hate
-
News7 days ago
SpaceX rescue mission for stranded ISS astronauts nears end — Here’s when they’ll return home
-
Elon Musk2 weeks ago
Tesla says it will be a victim of Trump admin’s tariff strategy
-
News7 days ago
Tesla reveals Cybercab battery pack and range efficiency