Pinned Tweet
Live demo of building a company with @Grok @Bot!
going live in about an hour! luma.com/3ifrgttw
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Elon Musk retweeted
Prufrock-5 finishing a test-tunnel in Bastrop, Texas. The ~900,000 lb boring machine will re-launch in November.
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Elon Musk retweeted
Join us this Saturday at 9 AM for International Coastal Cleanup Day, and help take care of Boca Chica Beach. The City of Starbase, @SpaceX, @TXAdoptABeach, and Cameron County are teaming up for a community cleanup, and we'd love to have you there. Invite your friends, family, and neighbors. Supplies will be provided, so just bring yourself. Sign up → bit.ly/46I7e3H See you on the beach!
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😂🎯
life cycle of a tweet you know a post is doing well when you start getting the shut up u retard replies
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Elon Musk retweeted
BREAKING: The Government of Zambia has launched a three-year @Starlink powered digital learning programme for 70 schools. 🇿🇲 • Will connect 70 schools to Starlink • Expand digital learning and skills • Bring internet to surrounding communities
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Great conversation with @chamath, @jason, @davidsacks, and @friedberg on all the work ahead when it comes to diffusing benefits of AI broadly, earning permission from communities, and ensuring AI safety and control.
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Grok Build
Grok Build just got a pretty substantial upgrade across MCP, memory, long-running sessions, and overall agent reliability MCP tools can now return structured JSON, cancelled tool calls actually tell the server to stop working, memory can be managed directly from the /memory browser, and long-running sessions keep their compaction checkpoints instead of losing them during cleanup There are also fixes for macOS image pasting, subagent cancellation states, /rewind, huge skill files flooding context, Windows cloning, and minimal-mode session handling A lot of edge cases cleaned up here...especially for people running heavy agent workflows for long periods Release Notes: v1.0.33 Features: • MCP tool results now include structured JSON data when the server provides it. • GROK_GROVE=1 now enables both clone and worktree features when specific knobs are unset; missing remote settings no longer force copy. • Delete memories from the /memory modal using two-press x; only actual notes (not generated indexes) can be removed. • Composer footer now shows the Alt+Enter chord for inserting a newline when Cmd+Enter is unavailable over SSH. • /memory now always opens the memory browser modal; status and toggle are available via keys inside the modal instead of command arguments. Bug Fixes: • Fixed a bug where pasting an image on macOS could attach the wrong image. • MCP tool calls listed directly now show their name, arguments, and any error message. • Background subagent tasks now correctly show cancelled status when the parent session closes. • The Subagents dock no longer shows an unclickable "Done N completed" row after all subagents finish. • Cancelled or timed-out MCP tool calls now notify the server so it can stop work instead of continuing in the background. • /rewind no longer fails when older compaction checkpoints are missing after a session sweep; only the base checkpoint for the target matters. • Large skill files are now capped at the same 25k-token limit as other reads; oversized skill bodies show a truncation note instead of flooding context. • Long-running sessions no longer lose old compaction checkpoints or prompt offloads during the 30-day cleanup sweep. • Auto "where was I" recaps no longer appear while a scheduled task, monitor, or workflow is still running. • In minimal mode, confirming /delete or /exit now immediately opens a new empty session instead of appearing stuck. • In minimal mode, resuming a session after /new now correctly reloads its history instead of showing the wrong session. • MCP tools that take no arguments no longer show a stray "{}" line in the permission sheet. • Fixed Windows clone and attach failures when .git/config values contain backslashes, quotes, or other characters that must be escaped. • /memory modal now shows clear explanations when memory is disabled and helpful empty states instead of blank panes. • /memory (and on/off toggles) no longer leaves user bubbles or host turns in scrollback when opening or changing the modal. • Fixed Windows clone staging directories that could not be cleaned up after deadline or cancel during shallow bootstrap.
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Elon Musk retweeted
Elon just gave one of the clearest explanations yet for why Terafab has to exist There are basically two problems: • Geopolitical risk — at some point, advanced chips from Taiwan may not be available • Scale — even if supply remains stable, existing fabs eventually run out of capacity as AI, humanoid robots and autonomous cars keep scaling And chips are the foundation underneath all of it Server AI, edge compute, Optimus, Tesla vehicles....everything needs enormous and reliable semiconductor supply Elon: “So it’s either build Terafab or fail to scale” That pretty much sums up the entire strategy Secure the chip supply....then scale AI and robotics without a ceiling
All-In Summit: Elon Musk & Gwynne Shotwell -- AI Risks and Peer Review -- Starship -- Terafab as Taiwan Insurance -- SpaceX/Tesla Merger Potential -- Management at SpaceX ++ much more! (0:00) SpaceX's @Gwynne_Shotwell joins The Besties! (1:45) Gwynne's SpaceX story, selling rockets, and working for Elon (6:45) Running SpaceX: AI, Starlink, Rockets, and X (13:43) Direct to cell with Starlink, retiring rockets, competition (18:34) Data centers in space (22:00) Management at SpaceX (27:37) @elonmusk joins: AI's real risk, model peer review, what he meant by "Dario is right" (36:53) Elon and Gwynne on their working relationship, Starship's future (46:16) Terafab, Tesla, Flying cars?, merging Tesla and SpaceX (52:51) Lying AIs, how to do AI peer review right $TSLA $SPCX
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Elon Musk retweeted
SpaceXAI engineer Lingxi Li, @lingxi, runs code cleanup while everyone else is asleep. Nobody is shipping at 3 AM, so conflicts are rare and the changes are low risk. His bots start a research agent that sweeps the monorepo for quality issues, poor modularization, comment bloat and security gaps. He wakes up to a stack of PRs.
Three SpaceXAI employees are building a company in 3 days with Grok Bot. This is Day 1. Matt Palmer (@mattyp), Lauren Tan (@poteto), and Roshan Sadanani (@roshan_s) start with research, a plan, and a product. Live now, plus sessions for engineering, product, and founders. nitter.click/i/broadcasts/1AxRnZbVp…
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The p(doom) discussion gets all the headlines, but the p(abundance) scenery is far more like and deserves much more engagement.
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Elon Musk retweeted
Finally!!! A proper orbital attempt! Important note is that they won't be targeting orbit at SECO. They will only attempt an orbital circularization burn if all systems are go and it's considered safe. Nice and conservative approach!
Starship is preparing to go to orbit. Flight 14 is targeting to launch as early as Tuesday, September 22, pending regulatory approval → spacex.com/launches/starship…
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We will work on this
It would be great to build a Grok Bot that does exactly this: figures out the biggest constraint in your business and pings you every week so you know what to focus on.
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The solar power exponential will continue until all other energy sources are <<0.1%
Probably nothing
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“Cisgender. It’s a way of marginalizing a normal person” -Norm Macdonald
Five years ago today we lost a legend.
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Elon Musk retweeted
Love seeing government officials actually trying @Tesla FSD (Supervised). Here's the Deputy Prime Minister of Slovenia using it on public roads: "t doesn't get tired, doesn't fall asleep, and can significantly contribute to safer driving. On to the next step – robotaxis."
Jernej Vrtovec
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Elon Musk retweeted
What’s crazy is that this bandwidth growth is well known but it’s likely impact is totally dismissed at the same time. For context here is Starlinks historic bandwidth growth by generation. The V2 -> V3 inflection will 3-10x greater than the V1 -> V2 inflection was on this video.
Starlink V3 constellation starts being deployed this month. Ultimately, it will deliver more than 100 times the bandwidth of our current 11,000 satellite constellation.
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Vice President @JDVance had a simple idea: Why don’t we have a Most Wanted Fraudsters list? So we built one. In just 3 months: 5 fraudsters captured, 4,000+ days on the run, nearly $2 BILLION in alleged fraud—across 3 continents. The American people remain one of the FBI’s greatest partners. You give us the information. We find them. We bring them to justice. -DKP🇺🇸
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If you're a fan of Mach33 research and you're not plugging the MCP/Connector into your agents (my preferred is grok bot) then you are falling behind. just a few moments ago, 20 days after a very quiet release, total research interactions from MCP eclipsed total research visits on our site over the same time. The median user on the site has read 2 analysis over the last 20 days and the median user on the MCP has made 36 analysis calls. 18x more depth of engagement. the really nutty thing is that this trend is actually meaningfully accelerating over the same amount of time, across free users and paid users. this does not include internal users which would dramatically accelerate this trend. do yourself a favor and connect the Mach33 MCP to grok/claude/chat gpt whatever you use. research.33fg.com/mcp-guide You're agent will get much smarter on any space/spacex related question.
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Elon Musk retweeted
I have used my X Money virtual Visa card, via my iPhone wallet, twice today. Works perfectly. This app has come a long way from the days of Twitter.
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Blizzard’s inability to solve the login problem on their product launch day reminds me of the classic Forster essay: The Machine Stops cs.ucdavis.edu/~koehl/Teachi…
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When the people who knew how to make the machine work are gone, the machine stops working
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