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Elon Musk confirms Tesla Optimus V3 already uses Grok voice AI

Musk’s recent posts suggest that the development of Tesla’s humanoid robot is advancing steadily behind the scenes.

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(Credit: Tesla)

Tesla CEO Elon Musk has teased new progress on the company’s humanoid robot, Optimus. In a brief post on X, Musk shared that he had an “excellent review” with the Tesla Optimus team. He also confirmed that Optimus V3 is already using Grok voice assistant in a later reply. 

Musk’s recent posts suggest that the development of Tesla’s humanoid robot is advancing steadily behind the scenes.

Grok Already Integrated

Musk’s recent comments about Optimus were shared on social media platform X. Initially, Musk posted that Optimus V3 would be (chef’s kiss), and that he just had an excellent review with the humanoid robot’s team. Considering Musk’s post, it was no surprise that some Tesla fans asked if Optimus would be able to talk using Grok, xAI’s large language model. Musk confirmed that Optimus “already does.” 

Grok’s integration with Optimus may allow the robot to interact more naturally with its environment and users. Tesla previously noted that Optimus will rely on the same neural networks powering its Autopilot and FSD systems. The addition of Grok could then make Optimus even more user-friendly for regular consumers.

Closer to Production

The current iteration of Optimus features Tesla-designed actuators, improved limb control, and more human-like proportions. Recent demo videos released by the company showed Optimus units walking unassisted, balancing in place, and working in Tesla factories, among other tasks. Musk has also highlighted that Optimus would have upgraded hands with 22 degrees of freedom, close to a human hand.

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Musk noted during the company’s Q1 2025 All Hands meeting that Tesla may be able to produce around 5,000 units this year. “This year, we hopefully will be able to make about 5,000 Optimus robots. We’re technically aiming for enough parts to make 10,000, maybe 12,000, but since it’s a totally new product with a totally new, like everything is totally new, I’ll say we’re succeeding if we get to half go the 10,000. But even 5,000 robots, that’s the size of a Roman legion, FYI,” Musk said during the meeting.

Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Elon Musk

Tesla releases cryptic teaser for something massive and it’s coming this week

On Sunday morning, Tesla released a nine-second teaser video of what appears to be either a vehicle wheel, fan, or some sort of propeller, but there are no real clues as to what it could be exactly.

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Credit: Tesla

Tesla has released a cryptic teaser for something massive, and it will release details on it this week. With many different projects in the works, there is a lot of speculation going on about what it could potentially be, but we have a few ideas.

On Sunday morning, Tesla released a nine-second teaser video of what appears to be either a vehicle wheel, fan, or some sort of propeller, but there are no real clues as to what it could be exactly.

It then ends with “10/7,” meaning it will announce something on October 7, which is this Tuesday:

Given that Tesla has been working on a handful of pretty notable projects that are set for unveiling at the end of this year, and there are some clues that seem to point in their direction with this short teaser video.

There are two projects that come to mind almost immediately: the Tesla Roadster is one, and the “E41” or affordable model is the other. Here’s what we know about both:

Tesla Roadster Demo Event

Tesla said earlier this year that it would have a demo event for the Roadster to unveil some new technologies and show off what it has been working on over the past few years.

There have been a lot of crazy things in the works for the Roadster, including a SpaceX package that would use cold-gas thrusters for an insane 1.1-second 0-60 MPH acceleration rate. This package was also supposed to help it hover, something CEO Elon Musk has teased for the past few years.

The Roadster was ready for release earlier this year, but after Chief Designer Franz von Holzhausen and VP of Powertrain Lars Moravy showed Musk what they had come up with, he wanted more.

Moravy said on the Ride the Lightning podcast earlier this year:

“What we had come up with exceeded what we originally planned. So, Elon was like, ‘Wow, great. Let’s do more!'”

The Roadster event was coined as “the most epic demo,” and since it was planned for the end of 2025, it is totally feasible to believe this could be it.

Elon Musk teases Tesla’s “most epic demo” by end of year

Tesla ‘E41’ Affordable Model

Some believe the teaser could be the official launch of Tesla’s affordable model, which Musk said earlier this year is simply a stripped down Model Y.

There have been some sightings of this vehicle in the past few weeks, including one on Friday that showed the vehicle completely uncovered for the first time:

The launch of the affordable model makes sense, especially from a timing perspective. With the $7,500 EV tax credit officially coming to a close on September 30, many are wondering how Tesla will spark growth in its deliveries. A more affordable EV would be the perfect response, and it is something that Tesla has been working on for some time.

Other Potential Ideas

There are some pretty interesting ideas as to what the teaser could be apart from the Roadster or affordable model. Some believe it could be a cooling fan for a GPU cluster, which would make sense considering Tesla’s prowess in data.

Grok also made an interesting guess, stating it could be a propeller for a secret air taxi Tesla is developing. This seems sort of our of left field.

We do know Tesla hosted a handful of influencers at Gigafactory Texas this past week, so whatever the company showed them is likely what will be unveiled on Tuesday.

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Tesla Full Self-Driving v14 gets new release date, Elon Musk details

“Last minute bug cropped up with V14. Released is pushed to Monday, but that gives us time to add a few more features.”

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Credit: Tesla

Tesla’s Full Self-Driving version 14 has gotten a new release date after new details from CEO Elon Musk opened up some new perspectives on the suite.

Originally slated for an “early wide release” of v14 this past week, then a launch of v14.1 and v14.2 this week and next week, respectively, delays arose after Tesla’s Autopilot team found some issues within the software.

Tesla FSD V14 set for early wide release next week: Elon Musk

Musk detailed on X this morning that a “last minute bug” appeared before release, which has now pushed FSD v14’s release back to this Monday:

Musk also said the delay would give Tesla the ability to “add a few more features,” which seems like an added advantage, although he did not provide any additional details on what these features could be.

In classic Musk fashion, he has teased the capabilities of this version of the FSD suite since it became public knowledge that Tesla was working on it. He said that it is the second most important update for the AI/Autopilot team since FSD v12.

V14 will have a parameter count that is ten times what previous iterations were, which should provide more accuracy and a more human-like operation.

Musk has said v14 “feels alive” and has used the word “sentient” to describe its performance. The goal with the new FSD rollouts is to eliminate as many interventions as possible, making it as close to human driving as possible.

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Elon Musk is halfway towards becoming the world’s first trillionaire

Musk’s fortune remains heavily tied to Tesla, which has rallied nearly 100% since April.

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Credit: Tesla Manufacturing/X

Elon Musk has reached a new milestone by becoming the first individual in history to achieve a net worth of $500 billion. ForbesReal-Time Billionaires tracker confirmed the record Wednesday afternoon after Tesla stock gained nearly 4%, adding an estimated $9.3 billion to Musk’s net worth in a single day. 

He now sits more than $150 billion ahead of Oracle co-founder Larry Ellison, whose net worth also stands at a very impressive $350 billion.

Tesla stock leads wealth surge

Musk’s fortune remains heavily tied to Tesla, which has rallied nearly 100% since April, when the CEO announced he would step back from outside roles to focus more on the EV maker. The company’s market capitalization is back within 10% of its all-time peak, lifting the value of Musk’s 12% stake to about $191 billion. 

Beyond this, his 2018 compensation package, which was rescinded by a Delaware judge last year but is still under appeal, could unlock additional stock worth more than $130 billion if reinstated, Forbes noted. Investors see Musk’s refocused leadership as a stabilizing force for Tesla as it pursues ambitious global growth. Tesla has also proposed a new compensation plan for Musk that could bring the company’s market cap to $8.5 trillion and add an additional $900 billion to the CEO’s net worth. 

SpaceX and xAI boost portfolio value

While Tesla drives much of his wealth, Musk’s stakes in SpaceX and xAI have added significant upside to his net worth. SpaceX, his private rocket company, recently hit a $400 billion valuation in a private tender offer, valuing Musk’s 42% stake at $168 billion. Meanwhile, xAI Holdings, which merged with social platform X earlier this year, is worth an estimated $113 billion, giving Musk another $60 billion on paper. 

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These ventures, combined with Tesla’s resurgence, have pushed Musk’s net worth past the half-trillion-dollar mark and highlighted his reach across multiple industries, from clean energy to space, artificial intelligence, brain implants, and tunneling.

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