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Elon Musk reposted
Dogan Ural
@doganuraldesign · Jul 8, 2026
Grok 4.5 is pretty good at building websites.
Just made a beautiful website about black holes.
Check this out:
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Elon Musk reposted
Jaynit
@jaynitx · Jul 8, 2026
Elon Musk reveals the environmentalist viewpoint he says has become total madness
"There are 8 billion people on Earth and it would be better if there were none. I'm like, 'hey buddy, you can start with yourself. See if you really want to make a difference'"
"That's like a crazy viewpoint. That's like literally saying, let's genocide humanity. How can you say that with a straight face? That sounds like total madness"
"In the limit of environmentalism, it becomes like an ingrown toenail. A toenail's fine, but not if it's warped and ingrown. It's just gone too far"
"Humanity is not a blight on the face of the Earth"
"Even with climate change, life on Earth will still continue. The calamities Earth has suffered where life continued, gigantic meteorite impacts, super volcanoes, continents drifting all over the place"
"There've been times in Earth's past where it's been like a total snowball or absolutely sweltering hot. We had many extinction events, but life continued"
"We don't see the dinosaurs now, but they had a good run for 100 plus million years"
"Even if there's catastrophic climate change, life continues. It just may not be life as we know it. It may not be humans, it'll be something else"
"What we're talking about with climate change is not a threat to all life on Earth, but really maybe a threat to humans, a dislocation if low-lying countries end up underwater"
"Over time we need to move to a sustainable energy economy. We can't just keep taking billions of tons of carbon from deep underground and putting it in the atmosphere and expect nothing will happen forever"
"But we also don't need to be alarmist about it and super negative and massively disrupt people's lifestyles"
"People can continue to live a normal life. They shouldn't feel guilty about being human or having a stake. It's fine"
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sourcery
@sourceryy · Jul 8, 2026
.@Starcloud_ CEO @PhilipJohnston: "Buy SpaceX stock."
"It's like owning the railroads."
" The SpaceX IPO is going to be viewed historically as the most undervalued IPO of all time."
"They will tear through $10 trillion certainly within the next couple of years, and then have almost unlimited TAM for what they're building."
"I'm not like regulated by anybody. So I'm going to tell people, 'Just buy SpaceX stock.' I think it's a great stock to buy."
"They own what will be by far the most cost-effective launch vehicle, and that opens up every industry in space that will be possible beyond that: asteroid mining, lunar resource mining, all of the comms businesses that are going to be built. Everything else is going to have to go through SpaceX."
"It's like owning the railroads. Lots of businesses will be built on top of it, like our business will be built on top of it."
"The railroads are a great business to own."
@elonmusk
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Elon Musk
@elonmusk · Jul 9, 2026
Cool
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Elon Musk reposted
Kun Chen
@kunchenguid · Jul 9, 2026
grok 4.5 made me give grok build a serious run today
here's my honest first impression (non affiliated neutral view point):
1. grok build is a very good harness
firstmate stretches harness capabilities to their limits, and i've been testing it with claude code, codex, opencode, pi and grok build
so far, grok build and claude code are the only two harnesses that can automatically wake up when the background polling process finishes
codex hard fails on this kind of background polling task, with no escape hatch. opencode and pi can both do it with custom plugins, but not out of the box
grok build also feels really clean, smooth, and transparent. you can see what background tasks are running, what hooks got triggered at what step, context window, token usage etc all out of the box and somehow the UI does not feel cluttered at all
2. grok 4.5 is a very good model
i've been using opus 4.8 as my primary firstmate, and today i did a full switch to grok 4.5. so far i don't think anything degraded, while token throughput is a lot faster, although time-to-first-byte for each response seems long - i wonder if prompt caching is done properly or no
3. the quota that comes with X premium is quite generous, and there's no session level limit
so overall i'm quite pleased by this and plan to switch a lot of my tasks to grok. the landscape just got a lot more interesting...
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Elon Musk reposted
Brian Roemmele
@BrianRoemmele · Jul 8, 2026
WOW!
GROK 4.5 PRICES ARE NEAR OPEN SOURCE HOSTED PRICES!
This will move many that have token cost fatigue in corporations.
But that is only half the story: it is ~4.2 more efficient using far less times per turn.
Brian Roemmele@BrianRoemmele· Jul 8, 2026I find that @Gork 4.5 not only exceeds Claude and ChatGPT in most cases, it has a far deeper and wider pool of knowledge it draws from.
The first principles thinking vs. AI that lies to be “safe” theatrics is starting to crack the other models as I predicted it would.
On more
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Elon Musk reposted
Kiko Dontchev
@TurkeyBeaver · Jul 8, 2026
Calling all exceptional civil and electrical engineers!
The SpaceX Cape Starship team needs help building and scaling the worlds most advanced launch pads. If you want to join the greatest team on Earth and help us on our journey to the Moon and Mars, check out the opportunities linked below
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Elon Musk
@elonmusk · Jul 9, 2026
Grok is making progress
leo 🐾@synthwavedd· Jul 8, 2026lmao wtf
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Elon Musk
@elonmusk · Jul 9, 2026
Yes
Yun-Ta Tsai@yunta_tsai· Jul 9, 2026The road to AGI is to teach it to solve Kardashev Type II problems.
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Elon Musk reposted
NVIDIA
@nvidia · Jul 8, 2026
Congrats to @SpaceXAI on Grok 4.5 — trained on NVIDIA GB300 NVL72 systems and purpose-built for coding, agentic tasks, and knowledge work. This is what happens when world-class AI infrastructure meets world-class AI research.
SpaceXAI@SpaceXAI· Jul 8, 2026Announcing Grok 4.5, our first model trained specifically for coding and agents. It was trained with Cursor and offers frontier intelligence at leading speeds and cost efficiency.
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Elon Musk reposted
Sawyer Merritt
@SawyerMerritt · Jul 8, 2026
Smart pet technology company Fi has just launched the world's first dog collar with @Starlink.
Basically, you’ll know exactly where your dog is at all times anywhere in the U.S. It’s $199 + $189/year membership for new customers, and just a $299 flat fee for existing members.
More info:
• Up to 5 days of battery life: Operate multiple days on a single charge, supporting extended trips and remote exploration.
• T-Satellite with Starlink GPS: Track a dog's location nearly anywhere in the US, including areas entirely without cellular coverage.
• Dual Band High-accuracy GPS: Deliver precise location data continuously, whether connected via satellite, LTE, Wi-Fi, or Bluetooth.
• Automatic switching: Seamlessly connect to LTE when available and to T-Satellite with Starlink when cellular networks are out of reach — with no action required from the owner.
• Real-time location updates: Deliver accurate, continuous location data whether the dog is in a city park or miles from the nearest cell tower.
• Fi Callback: A proprietary training system based on sound and vibration that uses no static electric shock to bring dogs back to their owners on command.
• Fully waterproof: Tested in salt water and IP68/66K-rated
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Déborah
@dvorahfr · Jul 8, 2026
Wow amazing Grok Imagine 😍
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DogeDesigner
@cb_doge · Jul 8, 2026
BREAKING: SpaceX’s Starship just got another lunar customer. Japan’s ispace will use SpaceX’s Starship for Moon cargo missions.
• ispace signed an agreement with SpaceX to secure 500 kg of payload capacity on Starship.
• First mission is targeted to launch as early as 2030 through ispace’s new Lunar Access Integration service.
• The service is designed to make it easier for companies, governments, and research organizations to send payloads to the Moon.
• Customers can fly payloads ranging from a few kilograms up to 500 kg on shared Starship missions.
“We are very pleased to be able to offer the new Lunar Access Integration service utilizing Starship’s payload space… High-capacity, relatively low-cost lunar transport… is essential to realizing the sustainable lunar economy that ispace aims to create.”
— ispace Founder & CEO Takeshi Hakamada
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Elon Musk
@elonmusk · Jul 9, 2026
Neat
Box@Box· Jul 9, 2026Grok 4.5 reviewed a full Credit & Security Agreement stored in Box — the kind of dense, multi-section facility document that typically requires significant counsel time.
@Grok 4.5 used Box MCP to access the file securely, extract key terms across the agreement, identify
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Elon Musk reposted
Dan
@Daniel_Farinax · Jul 8, 2026
Grok 4.5 is actually insane.
I'm one step closer to launching my new 3D Home Plan Builder. Powered by Grok 4.5 and Grok Imagine. 🚀
Grok 4.5 just crushed it: designed the entire 2D + 3D plan inside the app in under 1 minute at a fraction of the cost of Opus.
Launching tomorrow! 🔥
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Elon Musk
@elonmusk · Jul 9, 2026
Cool that Grok 4.5 is #1 in some respects, even with respect to Fable 5
Artificial Analysis@ArtificialAnlys· Jul 9, 2026SpaceXAI's Grok 4.5 takes the #1 spot on AutomationBench-AA with a score of 51%, ahead of Claude Fable 5 (49%) and Claude Opus 4.8 (48%) at roughly a quarter of their cost per task - the first model to complete more than half of workflow objectives without breaking any business
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Elon Musk reposted
Teslaconomics
@Teslaconomics · Jul 8, 2026
Wow… within 5 minutes my kids built this game called the Tesla City with Grok 4.5.
It’s a simple Tesla arcade game in SF where:
1/ You can choose a Tesla (3 / Y / S / X / Cybertruck / Roadster / Semi / Cybercab)
2/ Give robotaxi rides - pickup and drop people off for $
3/ Can upgrade your car with the $ (buy new weapons, etc.)
4/ Fight gas cars with blasters, homing missiles, EMP & plasma, as they try to attack you to prevent you from completing Robotaxi rides.
GROK 4.5 is next level! 🔥
Teslaconomics@Teslaconomics· Jul 8, 2026My 5 and 7 yr old are ready to cook with Grok 4.5!
It’s going to be a fun summer…
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Mark Zuckerberg
@finkd · Jul 9, 2026
(1) Today we're releasing Muse Spark 1.1 -- a strong agentic and coding model at a very low price. It's available through our new Meta Model API and in Meta AI.
Elon Musk
@elonmusk · Jul 9, 2026
Jinx
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Drew Pavlou 🇦🇺🇺🇸🇺🇦🇹🇼
@DrewPavlou · Jul 8, 2026
Grok 4.5 delivering Fable level performance at like 1/17th the cost! 😮 @elonmusk
Elon Musk
@elonmusk · Jul 8, 2026
In fairness, Fable is definitely better than Grok 4.5, but most tasks don’t require Fable-level capability
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Elon Musk
@elonmusk · Jul 8, 2026
Grok has always been very strong on law
Tech Dev Notes@techdevnotes· Jul 8, 2026Grok 4.5 is #1 on Harvey's Legal Agent Benchmark
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