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Elon Musk
@elonmusk · 8. Juli 2026
Grok 4.5 context window will upgrade to 1M probably by next week
Artificial Analysis@ArtificialAnlys· 8. Juli 2026SpaceXAI’s Grok 4.5 scores 54 to place fourth on the Artificial Analysis Intelligence Index following only Fable 5, GPT-5.5, and Opus 4.8. It scores on par with GPT-5.5 in Codex on the Artificial Analysis Coding Agent Index in the Grok Build harness, at much lower cost
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Elon Musk
@elonmusk · 8. Juli 2026
Grok will be able to call Imagine as a tool in agentic mode for image/video generation. As Imagine keeps improving, this will be amazing for game developers!
Danny Limanseta@DannyLimanseta· 8. Juli 2026I got to try Grok 4.5 in early access in Cursor for the past few days and I absolutely enjoyed it.
It feels like Opus 4.8 at 2x the speed at a much cheaper price point.
I tasked it to brainstorm > plan > implement a big feature for my game (this act 1 boss fight) and it did
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Elon Musk
@elonmusk · 8. Juli 2026
Grok groks engineering.
Next month’s release will be another step-change improvement, as we close the loop on solving real-world engineering problems at Tesla, SpaceX, Neuralink and Boring Company.
SpaceXAI@SpaceXAI· 8. Juli 2026Grok 4.5 is built for real-world engineering. It excels in large codebases and handles long-running tasks that span multiple repositories, hundreds of skills, and a variety of tools.
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SpaceXAI
@SpaceXAI · 8. Juli 2026
Grok 4.5 is built for real-world engineering. It excels in large codebases and handles long-running tasks that span multiple repositories, hundreds of skills, and a variety of tools.
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Elon Musk
@elonmusk · 8. Juli 2026
Artificial Analysis assessment
Artificial Analysis@ArtificialAnlys· 8. Juli 2026SpaceXAI just released Grok 4.5, and it ranks #4 on GDPval-AA v2 with an Elo of 1543 - behind only the latest Claude releases from Anthropic on real-world agentic knowledge work tasks
Grok 4.5 achieved this score at a cost of $0.49 per GDPval task to sit clearly on the Pareto
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X Freeze
@XFreeze · 8. Juli 2026
Grok 4.5 is now officially available in Grok Build......try it now
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KanekoaTheGreat
@KanekoaTheGreat · 8. Juli 2026
🚨BREAKING: Rupert Lowe talks to Joe Rogan about the "Rape Gang Inquiry" report.
"The genesis of the rape gangs was this multicultural invasion of Europe. They wanted open borders."
"We've estimated a minimum of a quarter million rapes have taken place. It's probably much, much more."
"A lot of these girls were impregnated and forced to convert to Islam."
"These are properly organized gangs who are grooming and abusing young girls, as young as ten, and then literally trafficking them around the country."
"There's a cultural difference of opinion between an open high-trust Christian view of women and the Islamic view of women."
"They're predominantly from Pakistan and from one part called Mirpur. There are some from Bangladesh, Somalia, and Eritrea. There are other Muslim countries that perpetrate some of this and of course there are white people who perpetrate rape as well, but nothing on the scale of this."
"The state knows this is happening, but they don't want to admit that their multicultural experiment has failed. They don't want to be called racist. People are frightened to be accused of effectively being biased and white due to all of the woke DEI rubbish that has permeated the whole of British society."
@joerogan
@RupertLowe10
Full interview below ↓
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SpaceXAI
@SpaceXAI · 8. Juli 2026
Announcing 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
@elonmusk · 8. Juli 2026
Try out Grok 4.5 in Vercel!
Guillermo Rauch@rauchg· 8. Juli 2026Grok 4.5 now available to all Vercel customers
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Michael Truell
@mntruell · 8. Juli 2026
Excited to release Grok 4.5 with @SpaceXAI.
It's an Opus-class model that's fast and low cost. It's a significant step up over any model we've developed so far, including Composer 2.5, and has become the daily driver for many on our team.
First of many releases. More soon.
Cursor@cursor_ai· 8. Juli 2026We've partnered with SpaceXAI to train Grok 4.5.
It’s our most powerful model yet and the first we've built for more than software engineering.
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Elon Musk
@elonmusk · 8. Juli 2026
Try out Grok 4.5 in Cursor!
Cursor@cursor_ai· 8. Juli 2026We've partnered with SpaceXAI to train Grok 4.5.
It’s our most powerful model yet and the first we've built for more than software engineering.
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Elon Musk
@elonmusk · 8. Juli 2026
We will be releasing a new @CommunityNotes feature that sends you an 𝕏 Chat message if a post you interacted with is corrected
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Elon Musk
@elonmusk · 8. Juli 2026
We will be releasing a new @CommunityNotes feature that sends you an 𝕏 Chat message if a post you interacted with is corrected
Elon Musk
@elonmusk · 8. Juli 2026
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Elon Musk
@elonmusk · 8. Juli 2026
Our internal assessment is that Grok 4.5 is roughly comparable to Opus 4.7, but much faster. The combination of capability, faster speed and lower cost is what makes it competitive.
We are closing the loop on real-world usefulness, not benchmarks. Hardcore engineers at Tesla & SpaceX find Grok 4.5 genuinely useful, which is what actually matters.
NIK@ns123abc· 8. Juli 2026BRO LITERALLY PREDICTED THIS
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Elon Musk
@elonmusk · 8. Juli 2026
@dvorahfr Critical feedback is always appreciated
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Elon Musk
@elonmusk · 8. Juli 2026
An inspiring vision of the future is needed
Samo Burja@SamoBurja· 8. Juli 2026Alex Karp is right. There is a deep nihilism among European elites to an extent European citizens would find shocking.
The shopkeeper, the farmer, and the car mechanic think there will be an England or a Poland in 2100; the university professor, journalist, and prime minister
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Oilfield Rando
@Oilfield_Rando · 8. Juli 2026
There was literally a Bolshevik takeover of the Smithsonian.
Democrats can never be allowed to take power again.
Rapid Response 47@RapidResponse47· 7. Juli 2026This is just a sample; the full 162-page report lays out the entire Radical Left ideological capture of the Smithsonian — which the Trump Administration is rightfully correcting.
READ THE FULL REPORT HERE:
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Yun-Ta Tsai
@yunta_tsai · 8. Juli 2026
Has been my regular work horse for weeks. Impressive indeed.
Elon Musk@elonmusk· 8. Juli 2026Based on strong positive feedback from customers in our beta test program, @SpaceXAI will make Grok 4.5 available to the public tomorrow.
It is an Opus-class model, but faster, more token-efficient and lower cost.
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Elon Musk
@elonmusk · 8. Juli 2026
Based on strong positive feedback from customers in our beta test program, @SpaceXAI will make Grok 4.5 available to the public tomorrow.
It is an Opus-class model, but faster, more token-efficient and lower cost.
Elon Musk
@elonmusk · 8. Juli 2026
We will continue to make refinements to the Grok Build harness and the 1.5T foundation model almost every day in response to user requests.
The 2T model will finish training this month and be available to customers next month.
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Elon Musk
@elonmusk · 8. Juli 2026
Correct
tetsuo@tetsuoai· 8. Juli 2026Grok 4.5 goes public tomorrow. Here’s everything that’s known.
The model runs on V9, xAI’s new 1.5 trillion parameter foundation, roughly three times the size of the v8-small architecture behind Grok 4.3. It’s the largest model the company has shipped, trained on Blackwell GPUs
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