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SpaceX’s Florida Starship hits growth spurt as Texas Starship begins bulkhead installation

SpaceX has made some truly spectacular progress with both Florida and Texas Starship prototypes in the last week. (@flying_briann, NASASpaceflight - bocachicagal)

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In the last week alone, SpaceX’s twin orbital Starship prototypes have made some truly jaw-dropping progress. Onlookers have witnessed Florida’s Starship push through a rapid growth spurt, while the company’s Texas team has begun to install propellant tank bulkheads and work on a triple-Raptor thrust structure.

Meanwhile, SpaceX CEO Elon Musk has suggested that one or both of the orbital-class Starship prototypes could be “almost ready to fly” by August 24th, the date of the CEO’s next official update on Starship (formerly BFR and ITS). Although the actual challenge of building a massive, orbital-class launch vehicle is far subtler than the visible steelwork needed to build its primary structure and pressure vessels, the veritable leaps forward made in both Texas and Florida in the last 7-10 days are extremely encouraging signs.

Bulkheads galore

Starting off in Boca Chica, Texas, SpaceX’s team of engineers and technicians have been simultaneously handling Starhopper’s first untethered flight test (completed on July 25th) and building the facility’s orbital-class Starship prototype. Most significantly, after a few days of preparation, what is likely the Texas Starship’s first bulkhead was lowered inside its ~25m-tall (80 ft) barrel section, composed of the spacecraft’s propulsion section and propellant tanks.

Pictured below, technicians carefully craned the first 9m (30ft) diameter dome inside the Texas Starship on July 30th. Based on its orientation and the recent arrival of a similar dome, this particular bulkhead is almost certainly the bottom dome and first of three to be installed. It will thus serve as the bottom of the Texas Starship’s liquid methane propellant tank, as well as a significant structural member of the rocket’s thrust structure, needed to safely transfer the force of 3-6 Raptors to the rest of Starship.

Technicians carefully guide the Texas Starship’s first bulkhead into its propellant and propulsion section on July 30th. (NASASpaceflight – bocachicagal)
On the evening of August 4th, technicians flipped another Texas Starship bulkhead, confirming the use of a common bulkhead and verifying that the July 30th hardware was the first to be installed. (NASASpaceflight – bocachicagal)

SpaceX Texas also accepted delivery of the first multi-engine Starship thrust structure, featuring three obvious spots for three Raptors, meshing with Musk’s August 3rd statement that “Starship Mk1” would feature three of the engines.

The first Starship thrust structure seen in the wild arrived in Boca Chica on July 30th. Each duo of shiny steel appendages are the attachment points for a single Raptor’s thrust vectoring hardware. (NASASpaceflight – bocachicagal, 08/03/19)

11 meters, 5 days

Meanwhile, at SpaceX’s similar Florida Starship facility, the similar-but-not-quite-identical spacecraft has experienced even more rapid growth. Over the course of perhaps 4 or 5 days, technicians installed a full six new rings worth of steel segments on the vehicle’s tank section, separated from the curved nose section just like SpaceX’s Texas Starship. With an individual height of almost exactly six feet (~1.8m), the six new rings combined to add more than 10.5m to the Florida Starship’s relative height in just a few days. Combined, the nose and barrel sections would likely reach a height of 45-50m (145-165 ft), roughly 10-15% shy of full height (55m).

No fewer than 7 additional rings are visible in various stages of work (c. Aug. 4) across the Cocoa campus after the recent growth spurt.

Taken on August 4th by local John Winkopp, SpaceX’s Florida Starship campus is buzzing with activity. Just five days ago, the large barrel section was barely 50% as tall. (Seamore Software)

Of note, a bulkhead visible between the Florida Starship’s barrel and nose sections in mid-July disappeared around the third week of the month, a strong indicator that SpaceX’s Florida campus actually beat Texas to their first Starship tank dome installation by as much as ~10 days. The fact that SpaceX is effectively racing itself to build the first flight-ready orbital-class Starship is deeply entertaining, but it also serves as an extremely unique example of the application of A/B testing (commonly used in software dev.) to spacecraft assembly.

https://twitter.com/therealjonvh/status/1157808886168150016

Per Musk, the goal is not meant to be cutthroat (i.e. two groups enter, one group leaves) and both groups (Boca Chica and Cocoa) were said to be actively cooperating and sharing important lessons learned. Still, the geographically separated groups are visibly utilizing different methods, facilities, materials, and approaches. In effect, SpaceX has encouraged two of its own groups to duel (albeit in a semi-friendly manner) as a deeply unorthodox method of getting Starship to operational readiness as fast as physically possible.

Although Musk did partially contradict himself on August 3rd, implying that the first orbital Starship prototype(s) could be “almost ready for flight” by late August, the SpaceX CEO stated on July 19th that both Florida and Texas Starships could be ready for their first (suborbital) flights in “2 to 3 months”, or September/October. The first orbital Starship launch would follow as few as 2-3 months after that (or those) first flight milestones.

In short, Musk’s official August 24th Starship presentation is likely to be downright jaw-dropping. Stay tuned!

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Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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Swedish unions consider police report over Tesla Megapack Supercharger

The Tesla Megapack Supercharger opened shortly before Christmas in Arlandastad, outside Stockholm.

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Credit: Tesla Charging/X

Swedish labor unions are considering whether to file a police report related to a newly opened Tesla Megapack Supercharger near Stockholm, citing questions about how electricity is supplied to the site. The matter has also been referred to Sweden’s energy regulator.

Tesla Megapack Supercharger

The Tesla Megapack Supercharger opened shortly before Christmas in Arlandastad, outside Stockholm. Unlike traditional charging stations, the site is powered by an on-site Megapack battery rather than a direct grid connection. Typical grid connections for Tesla charging sites in Sweden have seen challenges for nearly two years due to union blockades.

Swedish labor union IF Metall has submitted a report to the Energy Market Inspectorate, asking the authority to assess whether electricity supplied to the battery system meets regulatory requirements, as noted in a report from Dagens Arbete (DA). The Tesla Megapack on the site is charged using electricity supplied by a local company, though the specific provider has not been publicly identified.

Peter Lydell, an ombudsman at IF Metall, issued a comment about the Tesla Megapack Supercharger. “The legislation states that only companies that engage in electricity trading may supply electricity to other parties. You may not supply electricity without a permit, then you are engaging in illegal electricity trading. That is why we have reported this… This is about a company that helps Tesla circumvent the conflict measures that exist. It is clear that it is troublesome and it can also have consequences,” Lydell said.

Police report under consideration

The Swedish Electricians’ Association has also examined the Tesla Megapack Supercharger and documented its power setup. As per materials submitted to the Energy Market Inspectorate, electrical cables were reportedly routed from a property located approximately 500 meters from the charging site.

Tomas Jansson, ombudsman and deputy head of negotiations at the Swedish Electricians’ Association, stated that the union was assessing whether to file a police report related to the Tesla Megapack Supercharger. He also confirmed that the electricians’ union was coordinating with IF Metall about the matter. “We have a close collaboration with IF Metall, and we are currently investigating this. We support IF Metall in their fight for fair conditions at Tesla,” Jansson said.

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Tesla HW4.5 spotted in new Model Y, triggers speculation

Owners taking delivery of recent Model Y builds have identified components labeled “AP45.”

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Credit: Tesla

Tesla’s Hardware 4.5 computer appears to have surfaced in newly delivered Model Y vehicles, prompting fresh speculation about an interim upgrade ahead of the company’s upcoming AI5 chip.

Owners taking delivery of recent Model Y builds have identified components labeled “AP45,” suggesting Tesla may have quietly started rolling out revised autonomy hardware.

Hardware 4.5 appears in new Model Y units

The potential Hardware 4.5 sighting was first reported by Model Y owner @Eric5un, who shared details of a Fremont-built 2026 Model Y AWD Premium delivered this January. As per the Model Y owner, the vehicle includes a new front camera housing and a 16-inch center display, along with an Autopilot computer labeled “AP45” and part number 2261336-02-A.

The Tesla owner later explained that he confirmed the part number by briefly pulling down the upper carpet liner below the Model Y’s glovebox. Other owners soon reported similar findings. One Model Y Performance owner noted that their December build also appeared to include Hardware 4.5, while another owner of an Austin-built Model Y Performance reported spotting the same “AP45” hardware.

These sightings suggest that Tesla may already be installing revised FSD computers in its new Model Y batches, despite the company not yet making any formal announcements about Hardware 4.5.

What Hardware 4.5 could represent

Clues about Hardware 4.5 have surfaced previously in Tesla’s Electronic Parts Catalog. As reported by NotATeslaApp, the catalog has listed a component described as “CAR COMPUTER – LEFT HAND DRIVE – PROVISIONED – HARDWARE 4.5.” The component, which features the part number 2261336-S2-A, is priced at $2,300.00.

Longtime Tesla hacker @greentheonly has noted that Tesla software has contained references to a possible three-SoC architecture for some time. Previous generations of Tesla’s FSD computer, including Hardware 3 and Hardware 4, use a dual-SoC design for redundancy. A three-SoC layout could allow for higher inference throughput and improved fault tolerance.

Such an architecture could also serve as a bridge to AI5, Tesla’s next-generation autonomy chip expected to enter production later in 2026. As Tesla’s neural networks grow larger and more computationally demanding, Hardware 4.5 may provide additional headroom for vehicles built before AI5 becomes widely available.

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Elon Musk’s Grokipedia is getting cited by OpenAI’s ChatGPT

Some responses generated by OpenAI’s ChatGPT have recently referenced information from Grokipedia.

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UK Government, CC BY 2.0 , via Wikimedia Commons

Some responses generated by OpenAI’s ChatGPT have recently referenced information from Grokipedia, an AI-generated encyclopedia developed by rival xAI, which was founded by Elon Musk. The citations appeared across a limited set of queries.

Reports about the matter were initially reported by The Guardian

Grokipedia references in ChatGPT

Grokipedia launched in October as part of xAI’s effort to build an alternative to Wikipedia, which has become less centrist over the years. Unlike Wikipedia, which is moderated and edited by humans, Grokipedia is purely AI-powered, allowing it to approach topics with as little bias as possible, at least in theory. This model has also allowed Grokipedia to grow its article base quickly, with recent reports indicating that it has created over 6 million articles, more than 80% of English Wikipedia. 

The Guardian reported that ChatGPT cited Grokipedia nine times across responses to more than a dozen user questions during its tests. As per the publication, the Grokipedia citations did not appear when ChatGPT was asked about high-profile or widely documented topics. Instead, Grokipedia was referenced in responses to more obscure historical or biographical claims. The pattern suggested selective use rather than broad reliance on the source, at least for now.

Broader Grokipedia use

The Guardian also noted that Grokipedia citations were not exclusive to ChatGPT. Anthropic’s AI assistant Claude reportedly showed similar references to Grokipedia in some responses, highlighting a broader issue around how large language models identify and weigh publicly available information.

In a statement to The Guardian, an OpenAI spokesperson stated that ChatGPT “aims to draw from a broad range of publicly available sources and viewpoints.” “We apply safety filters to reduce the risk of surfacing links associated with high-severity harms, and ChatGPT clearly shows which sources informed a response through citations,” the spokesperson stated.

Anthropic, for its part, did not respond to a request for comment on the matter. As for xAI, the artificial intelligence startup simply responded with a short comment that stated, “Legacy media lies.”

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