Posts
Haozhu Wang
@haozhu_wang · Jun 28, 2026
It’s a good model, sir
Elon Musk@elonmusk· Jun 28, 2026Grok 4.5, based on our 1.5T V9 foundation model, with Cursor data added in supplemental training, is now in private beta at SpaceX & Tesla. Early evals show performance close to, perhaps exceeding Opus.
RL is continuing to significantly improve the model, and the Grok Build
Elon Musk
@elonmusk · Jun 28, 2026
It is 🫡
129
75
1K
74K
Arthur MacWaters
@ArthurMacwaters · Jun 28, 2026
Logically, since she didn’t personally fund USAID in the gap, she is responsible for the deaths of 10 million children
Pubity@pubity· Jun 27, 2026Jeff Bezos' ex-wife MacKenzie Scott has given over $26,300,000,000 to charity, making her one of the biggest individual donors in history.
She wants to spend the majority of her Bezos fortune on helping others and making the world a better place.
Elon Musk
@elonmusk · Jun 28, 2026
That is logical!
130
148
5.3K
108.6K
akshey
@aksheyd · Jun 28, 2026
It’s got a bit of zing to it sir
Elon Musk@elonmusk· Jun 28, 2026Grok 4.5, based on our 1.5T V9 foundation model, with Cursor data added in supplemental training, is now in private beta at SpaceX & Tesla. Early evals show performance close to, perhaps exceeding Opus.
RL is continuing to significantly improve the model, and the Grok Build
Elon Musk
@elonmusk · Jun 28, 2026
😂💯
99
54
836
76.1K
Elon Musk
@elonmusk · Jun 28, 2026
, I’m not saying the Grok v9 foundation model will be mind-blowingly better than anything, but it will be a solid workhorse in the same league as Opus.
And the SpaceXAI cadence of model and harness improvement is speeding up tremendously, particularly due to a few dozen of t
Elon Musk
@elonmusk · Jun 28, 2026
In addition to their excellent and unique training data, the Cursor team is also making major engineering contributions to v9 SFT & RL. It’s an honor and a pleasure to work with them.
For this 1.5T run, Cursor data was added in supplemental training, which is not quite as good as having it in initial training.
The 2T run that started a few weeks ago has greatly improved data in scope & scale in almost every arena, and many upgrades/fixes to the training recipe. That will finish in late July for August release.
205
321
5.5K
686.8K
Whole Mars Catalog
@wholemars · Jun 28, 2026
I thought it only cost $6 billion to solve world hunger. Why didn’t she do that?
Pubity@pubity· Jun 27, 2026Jeff Bezos' ex-wife MacKenzie Scott has given over $26,300,000,000 to charity, making her one of the biggest individual donors in history.
She wants to spend the majority of her Bezos fortune on helping others and making the world a better place.
Elon Musk
@elonmusk · Jun 28, 2026
Maybe she didn’t feel like it 🤷♂️
802
723
32.8K
624.7K
Beff (e/acc)
@beffjezos · Jun 28, 2026
Looks like Grok is back on the menu
Elon Musk@elonmusk· Jun 28, 2026Grok 4.5, based on our 1.5T V9 foundation model, with Cursor data added in supplemental training, is now in private beta at SpaceX & Tesla. Early evals show performance close to, perhaps exceeding Opus.
RL is continuing to significantly improve the model, and the Grok Build
Elon Musk
@elonmusk · Jun 28, 2026
To be clear, I’m not saying the Grok v9 foundation model will be mind-blowingly better than anything, but it will be a solid workhorse in the same league as Opus.
And the SpaceXAI cadence of model and harness improvement is speeding up tremendously, particularly due to a few dozen of the top Starlink/Starship engineers shifting a much of their time to AI.
Worth noting that the v8 foundation (Grok 4.3) model is a 0.5T model that finished training all the way back in December and has many fundamental flaws, so Grok 4.5 will feel like a gigantic upgrade!
640
634
10.1K
1.2M
Paul Graham
@paulg · Jun 28, 2026
Nearly all those who say the US should only admit the most talented immigrants would not themselves clear the bar they're proposing. They're effectively saying "Immigration is ok so long as you keep out people like me."
Elon Musk
@elonmusk · Jun 28, 2026
Immigration to a country should follow the same principles as successful companies follow with recruiting
718
662
11K
409.7K
Nicki Minaj
@NICKIMINAJ · Jun 28, 2026
Thank you for saving free speech, Elon.
Happy Birthday 🎉🎉🎉
Love always 🫶🏽
From Gag City & the Barbz! 🩷🎀
Elon Musk
@elonmusk · Jun 28, 2026
❤️
638
792
18.9K
476.7K
Yishan
@yishan · Jun 27, 2026
A big problem with research studies on AI models is that given how long the peer review process is, the results are always out-of-date by the time the paper is published.
This time, we have something better!
The typical reaction to research results like this roughly goes
Eric Topol@EricTopol· Jun 26, 2026We stress tested many frontier AI models for multimodal medical reasoning (including GPT-5, Claude 3.5, Gemini 2.5 Pro). They’re not ready. Faulty reasoning, use of inappropriate shortcuts, hallucinations. Published today @NatureMedicine
Elon Musk
@elonmusk · Jun 28, 2026
They should just post it here
249
107
1.5K
122.9K
Elon Musk
@elonmusk · Jun 28, 2026
Replying to @RealJamesWoods
Pretty much. It’s not promoted in any other countries …
833
1K
20.1K
464K
Officer Frenly (High IQ)
@FrenlyOfficer · Jun 27, 2026
Unfortunately, she’s spending it making the world a worse place
Pubity@pubity· Jun 27, 2026Jeff Bezos' ex-wife MacKenzie Scott has given over $26,300,000,000 to charity, making her one of the biggest individual donors in history.
She wants to spend the majority of her Bezos fortune on helping others and making the world a better place.
Elon Musk
@elonmusk · Jun 28, 2026
Sadly, yes
706
785
29.2K
633K
Fox News
@FoxNews · Jun 28, 2026
Happy Birthday to Elon Musk.
From helping build Tesla into the world's leading EV company to making reusable rockets a reality at SpaceX, Musk has spent decades pushing the boundaries of innovation.
His influence has also expanded into politics and public policy, making him one
Elon Musk
@elonmusk · Jun 28, 2026
Thanks :)
1.4K
348
12.9K
253.2K
Matt Bracken
@Matt_Bracken48 · Jun 27, 2026
No point in bailing the boat while traitors are still busy chopping holes in the bottom.
Elon Musk
@elonmusk · Jun 28, 2026
Yes
397
578
14.1K
461.9K
Joey Mannarino
@JoeyMannarino · Jun 27, 2026
This African migrant raped a two-year-old girl.
Go and find a two-year-old and look at them. Realize how small a two-year-old is.
I don’t know why the people of England aren’t hunting this man down and dealing with him themselves, to be honest.
This is not a human being by any
The Mercian@TheMercianNews· Jun 27, 2026🚨BREAKING: Migrant from the Central African Republic, Kevin Kerjean, has been charged with murder and rape after a 2-year-old child was found dead at a property in Chertsey, Surrey.
Police were called to an address in Pyrcroft Road around 5.40pm on Thursday (25 June), following
Elon Musk
@elonmusk · Jun 28, 2026
Horrific
258
293
5.8K
122.9K
X Freeze
@XFreeze · Jun 27, 2026
Elon Musk
@elonmusk · Jun 28, 2026
True
398
159
2.6K
152.3K
Edwinbarnesc 🇺🇸
@edwinbarnesc · Jun 27, 2026
is for oAuth subscribers for complete Agentic stack:
Grok 4.30 orchestrator
Grok 4.20 multi-agent/subagents
Grok build 0.1 code (narrow scope)
Grok 4.20 specialists (adversary)
Nearly identical to my Claude harness if it performs
Grok 4.20 is missing the capability to spawn
Elon Musk
@elonmusk · Jun 28, 2026
Ok
126
57
734
74K
Tommy Robinson 🇬🇧
@TRobinsonNewEra · Jun 27, 2026
A manhunt has been launched in Rome for Bangladeshi invader Shahadat Hossain, 43 after a family was hacked to death with a meat cleaver in a horror triple murder.
Three members of the same family, a mum, dad and their five-year-old daughter were killed in a flat on the western
Elon Musk
@elonmusk · Jun 28, 2026
!!
218
195
3.2K
119.5K
Rothmus 🏴
@Rothmus · Jun 27, 2026
Calling this Mengelian experiment “evil” is an understatement.
The gender ideology cult funnels children into puberty blockers, cross sex hormones, and surgeries, while weaponizing schools and child services against any parent who resists.
The Cass Review exposed the weak
Elon Musk
@elonmusk · Jun 28, 2026
Absolutely
195
189
5.6K
146.5K
DogeDesigner
@cb_doge · Jun 27, 2026
Happy 55th Birthday, Elon Musk! 🎂
Elon Musk
@elonmusk · Jun 28, 2026
❤️
1.5K
352
11.7K
335.5K
Basil the Great
@BasilTheGreat · Jun 27, 2026
🚨NEWS: An African migrant has been charged with rape and murder after the body of a 2 year old girl was found at property in Surrey
Elon Musk
@elonmusk · Jun 28, 2026
Yet another horror story
238
529
4.4K
181.9K