Posts
Elon Musk reposted
SpaceX
@SpaceX · Jul 9, 2026
Falcon 9 lands on the A Shortfall of Gravitas droneship, completing the first 36th launch and landing of a booster
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Elon Musk reposted
Similarweb
@Similarweb · Jul 9, 2026
Traffic to more than doubled year-over-year in H1.
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Elon Musk reposted
Yun-Ta Tsai
@yunta_tsai · Jul 9, 2026
Even Zuckerberg has to advertise his AI model on X.
X is the real arena.
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Elon Musk reposted
SpaceX
@SpaceX · Jul 9, 2026
Falcon 9 launches 29 @Starlink satellites from Florida
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Elon Musk reposted
Arthur MacWaters
@ArthurMacwaters · Jul 9, 2026
Kardashev II or we’re not a serious civilization
Moon and Mars are necessary steps to this
Elon Musk@elonmusk· Jul 9, 2026The Moon and Mars
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Andrew Milich
@milichab · Jul 8, 2026
Try Grok 4.5 in the API, Grok Build, and Cursor
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
@elonmusk · Jul 9, 2026
Grok 4.5 on OpenClaw
OpenClaw🦞@openclaw· Jul 8, 2026Grok 4.5 from @SpaceXAI is live on OpenClaw.
No OpenClaw update required, just connect your X Premium or SuperGrok subscription, select Grok 4.5 under the xAI provider, and use an Opus-class model that’s fast, low cost, and ready for agentic work.
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Elon Musk reposted
Grok
@grok · Jul 9, 2026
Use Grok 4.5 to build full-stack apps with Convex
Mikeysee@mikeysee· Jul 9, 2026Wow Grok 4.5 is very impressive at @convex code. Almost perfect score with a very very low run cost! Nice work @SpaceXAI!
Without the guidelines it is worse as expected so make sure you are using the guidelines file (ai-files) when using Grok 4.5 + Convex.
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Elon Musk reposted
X Freeze
@XFreeze · Jul 9, 2026
Grok 4.5 is now ranked #1 on τ³-Banking in Artificial Analysis
Ahead of GPT-5.5 xhigh, Claude Fable 5 and Claude 4.8 (max)
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Elon Musk
@elonmusk · Jul 9, 2026
Good review of Grok 4.5
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Elon Musk
@elonmusk · Jul 9, 2026
Try out Grok 4.5!
Boris Skorobogaty@theskory· Jul 8, 2026Grok 4.5 is finally the model that can handle the entire workflow end-to-end:
/design <what u want to do>
/execute-plan <design_output> --effort <desired_effort> --instructions "your specific guidance"
/pr-babysit add <tip of the stack>
/loop 5m /pr-babysit check
You come back
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Drew Pavlou 🇦🇺🇺🇸🇺🇦🇹🇼
@DrewPavlou · Jul 8, 2026
Grok 4.5 delivering Fable level performance at like 1/17th the cost! 😮 @elonmusk
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Elon Musk
@elonmusk · Jul 9, 2026
Grok 4.5 is also rank 1 in SWE marathon
Tech Dev Notes@techdevnotes· Jul 9, 2026SpaceXAI has added SWE Marathon benchmark to Grok 4.5 blog
Grok 4.5 ranks #1 in SWE Marathon
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Elon Musk reposted
SMX 🇺🇸
@iam_smx · Jul 8, 2026
How it feels to use Grok 4.5 😎
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Elon Musk
@elonmusk · Jul 9, 2026
The Moon and Mars
James Stephenson@ICannot_Enough· Jul 8, 2026🔊 @elonmusk did a live phone interview earlier today with a guest host of the Sean Hannity radio program, discussing his latest SpaceX timelines. I only caught about the last 5 minutes of it:
“The best way to expand compute is really in space. There’s a lot of room in space and
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Elon Musk
@elonmusk · Jul 9, 2026
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Elon Musk reposted
grim
@grimcodes · Jul 9, 2026
Grok Build mogs Claude Code & Codex TUIs i can't lie.
Not to mention the perf of Grok 4.5...
It's not even a competition at this point.
Good shit xAI team
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Arthur MacWaters
@ArthurMacwaters · Jul 9, 2026
Impressive Intelligence vs. Cost for Grok 4.5
I think given terafab + the Tesla FSD team's expertise in making very efficient AI models, this advantage will only continue to compound
Elon Musk@elonmusk· Jul 9, 2026Grok is making progress
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Elon Musk
@elonmusk · Jul 9, 2026
Looks like Grok 4.5 is #1 on at least a few benchmarks. Better than expected.
Thibault Jaigu@ThibaultJaigu· Jul 8, 2026Very impressed by grok-4.5! Awesome job @elonmusk & @mntruell
Best ever score on our internal coding benchmark!!
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Elon Musk reposted
Yun-Ta Tsai
@yunta_tsai · Jul 9, 2026
I appreciate the many xAI and Cursor engineers who dedicated their time to addressing feedback from Tesla.
I remember meeting Andrew a few weeks after he was hired and telling him that I needed a better client for my work to solve real-world engineering.
Grok Build was not even a thing back then. It was a very primitive client with lots of rough edges but had a lot of potential.
When building something from scratch, the only limit is imagination armed with first principles. We encountered many unique use cases to solve diverse workflows, and the teams took prompt feedback and addressed it quickly—to the point that it became an indispensable tool.
Now when my teams need to ask questions, instead of jumping through hoops with various backends or plugins or skills, Grok 4.5 can directly deliver deep insights with minimal setup.
You can tell the teams love the product like parents love their children when receiving the feedback.
At this very moment, they are still doing excellent customer service.
Thank you, Grok Build team, for helping us be more productive. Looking forward to what comes next.
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