CEO

CEO, and chief designer of space X🚀CEO and product architect of Tesla,inc🚘

[DogeDesigner @cb_doge]

BREAKING: Starlink has provided new emergency connectivity support to Armenia. 🇦🇲

• 56 additional kits will be deployed by Armenia’s Ministry of Internal Affairs’ Rescue Service to provide connectivity during natural disasters and emergencies.

• 110 Starlink terminals already connect thousands of students across Armenia’s remote schools.

[Elon Musk @elonmusk]

Tesla self-driving enables safer mobility for senior citizens

[Elon Musk @elonmusk]

Next Starship launch aiming for Thursday

[Elon Musk @elonmusk]

Starship is evolving rapidly

[Elon Musk @elonmusk]

Try Grok 4.5 and see for yourself

[Yun-Ta Tsai @yunta_tsai]

I would like to offer a counterargument that LLMs (or maybe AIs) cannot jump.

Before AlphaGo, the AI field had the same argument for Go: there are 2.08 × 10^170 possibilities, nothing fits in the computer, and there is no way AI could possibly predict the outcome of the next 50-60 moves.

It turned out most moves do not lead to a win. Combined with clever use of Monte Carlo Tree Search, the sampling becomes quite manageable. The same can be said for physics, where equations are just another form of compression.

Einstein did not start with relativity. That was not his first paper. He spent years understanding the properties of light before concluding that the speed of light is constant across the universe, which unlocked his discovery of relativity. During his thought process, he also interacted with other physicists (e.g., sub-agents) to enrich his thinking.

Currently we have not run an agent for years of compute. The sessions are often fragmented and disoriented, so every new session is almost a fragmented memory of the past, but it may not be for long.

[Elon Musk @elonmusk]

@beffjezos I say both energy and mass, as they are separate scarcities for practical purposes, despite being technically “equivalent”, as described by Einstein’s famous equation.

Our solar system has only a tiny percentage of non-solar atoms with which to build things.

[Gail Alfar @gailalfaratx]

Grok 4.5 is the truth seeking leader that other AIs can aspire to become

[X Freeze @XFreeze]

For the first time, Starship will carry 20 next-generation Starlink V3 satellites to space

Starlink V3 is designed to massively expand the network’s capacity and increase user speeds

After deployment, the test satellites will:
• Extend their solar arrays and antennas
• Attempt to connect with ground stations in South Africa
• Establish links with the wider Starlink constellation using high-capacity lasers

The satellites will follow the same suborbital trajectory as Starship, meaning they will not remain in orbit and are expected to reenter the atmosphere later in the mission

But the most interesting part is how Starlink will help inspect Starship

Six of the satellites have been modified with cameras designed to scan Starship’s heat shield and transmit the imagery back to SpaceX operators

Several heat-shield tiles have even been painted white to simulate missing tiles and provide clear imaging targets

The goal is to continue testing methods of analyzing Starship’s heat shield readiness for return to launch site on future missions

Starship launches Starlink
Starlink helps inspect Starship
The entire SpaceX ecosystem is starting to compound on itself

[Elon Musk @elonmusk]

Cool

[Elon Musk @elonmusk]

Follow the Starship series @SpaceX

[Gavin Baker @GavinSBaker]

The mega bull case for AI infrastructure would be *if* market share shifted away from certain frontier labs with 90%+ inference margins toward cheaper models, whether open-source or closed.

It would increase the ROI on AI spend for end customers by increasing intelligence per dollar, which would drive incremental token demand. Margin dollars would effectively get redistributed from the frontier labs to AI infrastructure providers. The infra winners would be those with the lowest per token cost and the winners at the model layer would be those with the highest token efficiency.

There are many reasons Jensen is so focused on open source, but this is likely the most important one as I think he is probably less worried about a monopsony these days. Lower margin % at the model layer = more margin $ at the infra layer all else equal.

With SpaceX and Meta being vertically integrated and possessing the #3 and #4 models respectively it is more possible than ever. Note that Grok 4.5 is ahead of Fable for some useful tasks at a much lower cost, so ranking them #3 is conservative.

This is not happening yet. Cheap, mostly open source tokens are likely the majority of volume today but the majority of economic value is still accruing to the most intelligent models. Might change though.

We will see.

[Elon Musk @elonmusk]

Grok Build improvements

[Elon Musk @elonmusk]

The publicly available version of Mythos (Fable with Claude as fallback) is significantly nerfed, but still that’s all most people have access to

[X Freeze @XFreeze]

SpaceX was founded on one powerful belief:

A future where humanity is out exploring the stars is fundamentally more exciting than one where we are not

Every Falcon launch, every Starship test, and every step toward Mars is built around that belief

The goal is not just to reach space

It is to build a future where humanity becomes a multiplanetary civilization

[Starlink @Starlink]

Starlink will provide high-speed, low-latency connectivity onboard @FlyFrontier, transforming every flight into a fully connected experience 🛰️✈️

[Farzad 🇺🇸 🇮🇷 @farzyness]

Grok is the Flow LLM.

Grok 4.5’s biggest advantage is its speed.

It’s smart enough to be comparable to the other models on most things.

But that speed allows you to make little tweaks to your system so that the output is PERFECT.

With the other models, it takes FOREVER to do this, and you constantly end up outside of a flow state, which makes it way way way harder to do this.

It’s now my preferred model.

[SpaceX @SpaceX]

Falcon 9 launches 27 @Starlink satellites from California

[Elon Musk @elonmusk]

True

[X Freeze @XFreeze]

SpaceX just launched two Falcon 9 rockets carrying 56 Starlink satellites in less than eight hours

SpaceX is moving at light speed right now

First:
• 27 Starlink satellites from Vandenberg

Then, just 7 hours and 42 minutes later:
• 29 more Starlink satellites from Florida

Two coasts, two rockets, 56 satellites, less than eight hours

For most space programs, one launch is a major national achievement
SpaceX launched twice in one day and was already preparing for the next mission

SpaceX is basically running an orbital assembly line