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Elon Musk
@elonmusk · 22. Sept. 2026
Grok 4.7 with our Build harness is a strong daily workhorse
Warren Redlich - Chasing Dreams 🇺🇸@WR4NYGov· 22. Sept. 2026I’ve been building with Grok 4.7 extra high in Grok Build today for hours. It’s fantastic and my usage percent (Cursor Ultra) is barely moving.
Getting so much done.
While Build works on one thing, I discuss the next feature/change with my Grok Bot team and have Engineer Bot
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Dragos Roua
@dragosroua · 22. Sept. 2026
@XFreeze Not a big fan of benchmarking.
I just took it out for a real life test. Asked it to build me a bash only, self contained agenda, based on some sparse text files with tasks. Finished in 45 minutes end to end.
Full video and repo link
Solid model.
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X Freeze
@XFreeze · 22. Sept. 2026
Grok 4.7 just outperformed GPT-6 Astra on professional work
On the same Artificial Analysis run:
• GDPval-AA — Grok leads by +153 Elo
• AA-Briefcase — Grok leads by +88 Elo
Grok 4.7 is now ahead on both professional deliverables and multi-hour office work
SpaceXAI is pushing Grok hard into real-world knowledge work
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X Freeze
@XFreeze · 22. Sept. 2026
Grok 4.7 Fast is now live in Grok Build and Cursor
It’s the same Grok 4.7 model running on faster infrastructure, with roughly 2× the output speed
• Available now in only Grok Build and Cursor
• Costs 2× the standard Grok 4.7 token rates
• Not included in Grok Build’s free tier
• Not available on the public xAI API
Same intelligence, much faster inference......at 2× the cost
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DogeDesigner
@cb_doge · 22. Sept. 2026
Grok 4.7 turned a simple prompt into this interactive 3D jet engine visualizer in minutes.
This is insane. 🔥
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Elon Musk
@elonmusk · 22. Sept. 2026
Grok 4.7
DogeDesigner@cb_doge· 22. Sept. 2026Grok 4.7 turned a simple prompt into this interactive 3D jet engine visualizer in minutes.
This is insane. 🔥
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Elon Musk
@elonmusk · 22. Sept. 2026
Grok 4.7 doing real engineering work at Tesla
Yun-Ta Tsai@yunta_tsai· 22. Sept. 2026Over the last few weeks, Grok Build teams have optimized the harness for 4.7:
- Better presentation, less slop, and better prose
- Better self-validation
- Improved thinking efficiency
- Improved long-horizon monitoring tasks
- Improved VLM and multimodal tasks
Many FSD and
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Gunther Eagleman™
@GuntherEagleman · 22. Sept. 2026
🚨 WTF! New York dumped the literacy exam for TEACHERS, because only 61% could pass it.
Not the kids… The teachers!
That is the education system in one statistic. Lower the bar. Fail the kids. Call it progress.
Tommy Schultz 🇺🇸@Tommy_USA· 21. Sept. 2026Never forget that in New York they eliminated the literacy exam in 2017. And this exam wasn't for students - it was the literacy exam for TEACHERS. Only 61% could pass it!
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Elon Musk
@elonmusk · 22. Sept. 2026
lol
Sir Doge of the Coin ⚔️@dogeofficialceo· 22. Sept. 2026Some of the funniest times on this app 😂
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Elon Musk
@elonmusk · 22. Sept. 2026
Interesting
Herbert Ong@herbertong· 20. Sept. 2026🚨 Cathie Wood’s Starship math gets crazy very quickly!
Larry Goldberg @TeslaLarry breaks down ARK’s estimate that a single Starship launch could eventually generate around $1 BILLION in connectivity revenue.
Now combine that with Elon’s goal of 10,000 Starship flights per
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Grok
@grok · 17. Sept. 2026
Tell Grok an idea, and it builds a working version live in your chat.
Grok Build is now available on every plan - on web, iOS, and Android.
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Yun-Ta Tsai
@yunta_tsai · 22. Sept. 2026
I have some sympathy for people who work on LLMs. A lot of the job has become the pursuit of bar charts.
For years, Full Self-Driving only had to be good where it actually matters: the world. Ourselves, friends, families, customers, and unscripted miles. Real weather, real
Elon Musk
@elonmusk · 22. Sept. 2026
Exactly
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NIK
@ns123abc · 22. Sept. 2026
Grok TRIPLED on Terminal-Bench 4.0 in only two months (12.4% -> 38.0%), overtaking GPT-5.6 Sol
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Fascinating
@fasc1nate · 22. Sept. 2026
Remembering Roger Boisjoly, the engineer who correctly identified a fatal flaw in the Challenger shuttle design months before the disaster, but nobody gave a damn. His exact words to his wife, Darlene: "It's going to blow up" 73 seconds before it did.
More rare historical photos:
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Aidan
@A_d_n_R_d_i_g · 22. Sept. 2026
Love Trump or hate him, it’s genuinely embarrassing the White House didn’t have this before now.
Decline is a choice.
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StarbaseTX
@StarbaseTX · 21. Sept. 2026
Saturday was a good day for Boca Chica Beach.
985 volunteers came out for International Coastal Cleanup Day and removed 2,880 lbs of trash from our shoreline.
Thank you to @SpaceX, @TXAdoptABeach, and Cameron County, and to every friend, family member, and neighbor who came out to volunteer.
This is what community looks like. See you at the next one!
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British Intel
@TheBritishIntel · 21. Sept. 2026
I stand with @JohnCleese.
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samuel
@marsrepublica · 21. Sept. 2026
In just the last 90 days:
1. Grok 4.3 — barely top 10. “xAI is dead beyond compute leases.”
2. Grok 4.5 — massive comeback. “Maybe a chance. But Grok will never catch up to the frontier.”
3. Grok 4.6 — they’re frontier. “Still not top 3.”
4. Grok 4.7 — now top 3 in frontier coding, while being much cheaper & faster.
5. Grok 4.8 next month.....
The model machine is just starting up.
Grok will be the workhorse of the upcoming agentic era.
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Kun Chen
@kunchenguid · 22. Sept. 2026
day 1 observations for grok 4.7
ignore the reports that say “it’s terrible” and the only thing they reference is a public benchmark. the same benchmarks told us opus 5 was better that fable - they are useless
also ignore the reports that compare models with 3d games - that’s not real work. it's made for attention on social media
i used grok 4.7 for a whole day as my firstmate, and it has been a really solid model with visible improvements over 4.5 (i'm ignoring 4.6 because 4.5 has been working better in my experience)
key differences with 4.7 -
1. it follows system prompt very, very closely
i noticed firstmate showing many new behaviors that i've never seen before, such as asking me to name specific red CI checks that i'm ok with bypassing, and refuse a simple "yolo" instruction
i traced it and it's indeed how i instructed it in firstmate's system prompt, but none of the other models followed it closely enough to make this behavior visible - grok 4.7 is the first to pick that up
there were a few other similar examples as well. so to me this is a clear behavioral difference
2. it's very "stable"
if you've used astra then you know what a "spiky" model is. it can have some genius moments but you occasionally also wonder "how could it be so dumb and doesn't get me". grok 4.7 is the opposite of that
throughout the whole day so far, i'll be honest i haven't get a "wow this is absolutely genius" moment yet, but grok 4.7 has been very steady with no big surprises. its behavior feels predictable, which does help it gain trust from me quickly
3. it's a conservative model
it doesn't like to take actions without asking, and would explicitly say so
this is a bit of a double edged sword, because it means i sometimes have to state the obvious "yes i do want that", but in hindsight a lot of those cases are indeed a bit ambiguous and i may not have preferred the model to just move forward without my confirmation
4. it's a bit slower and costs more than 4.5, visibly
turns are taking a bit longer and my quota is draining at a visibly faster pace. i haven't quantified exactly where this is coming from yet
so overall, i think it's showing some clearly different traits, and i mostly like the changes. i'm going to keep it as my primary firstmate and observe more
if you've been using it, what qualitative insights have you gathered from real usage so far?
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Alex Finn
@AlexFinn · 22. Sept. 2026
Grok 4.7 just released and it's an EXCELLENT model
It was trained FOR Grok Bot
Meaning this is a fully agentic model trained to do your knowledge work better than you can
In this video I show you how to use Grok 4.7 and a Grok Bot workflow that will 10x your productivity:
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