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Elon Musk wrote on X on Tuesday that xAI has dumped JAX and SGLang and rewritten its entire reinforcement learning and inference stack from scratch in C/C++, which took extra time. He said Grok 4.8's pre-training is done, that 4.8 is now in RL and that evals are starting to climb.

Musk said xAI will do a soft rollout to Grok Bot users later this week and see how it goes, and that Grok 4.8 will bear no resemblance to 4.7. He gave no benchmark figures and no date beyond later this week.

The post came 57 days after Musk wrote on September 14 that Grok 4.8 would finish training that week and start RL, according to FourWeekMBA's count. In a follow-up, Musk said Grok 5 should exceed Claude Opus 5.5 and maybe that happens in two or three months — hedged language, with no benchmarks or release date for Grok 5.

This is an announcement of progress, not a release: 4.8 is not yet available, its soft rollout is limited to Bot users, and there is still no price card or independent evaluation.

Since November 2, API requests naming xAI's grok-imagine-image-quality model no longer reach that model: they keep the same request and response shape but are served by grok-imagine-image-2.0 with quality set to low, and the older grok-imagine-image-pro name follows the same chain. Nothing returns an error, and the bill drops by a cent per image at every resolution — the replacement bills $0.04 against the old $0.05 at the standard size, AI Pricing Guru's daily-verified pricing tables show.

xAI did give notice: its migration guide went up with a 60-day window starting September 2 and recommends switching to the new model by name so customers choose the quality they pay for. Even so, this is the third xAI model retirement in five weeks handled by silent redirect rather than an error, one tracker noted, and xAI keeps no dedicated deprecations page and no written general notice policy.

The practical lesson for developers is to log the model that actually answered, not just the one requested — at xAI right now, the two can differ. The redirect lands in the same week xAI switches on a default text watermark for Grok API output, from November 7, which the Wire covered on October 31.

xAI introduced Data Bot on November 2 as a Shared Bot inside Grok Bot, built by the SpaceXAI data science team to handle warehouse queries and analytical work for colleagues across the company. The team said its small size had become a bottleneck for straightforward questions that still needed specialist knowledge, so it encoded that knowledge into a bot anyone can message.

What Data Bot carries is a maintained, shared skill set: metric definitions and query logic, guidance on setting up A/B tests and checking results for bias, chart and dashboard conventions that can turn a chat answer into a Databricks or Hex dashboard, and dbt and data-engineering practices. A separate shared memory holds operational knowledge — who owns a pipeline, whether a past metric dip was a regional holiday — with team managers approving or rejecting proposed additions before they reach everyone.

xAI's examples are internal work, not a public product launch: a product manager investigating questions dashboards do not answer, a lifecycle marketer tracing what Braze campaign recipients did next during The X Subscription launch, and scheduled weekly metric reports posted into Slack channels. The company estimates Data Bot handled about 70 hours of work in the week before the announcement that would otherwise have gone to the data team, while complex analyses still stay with the humans.

Elon Musk has admitted, in public, that xAI's flagship agent does not pay for itself. Asked on X on November 1 whether Grok Bot's weekly usage pool could be reset — after a user reported hitting 100% with four days still to go — Musk replied: "The cost of serving Grok Bot was unsustainably high relative to revenue." He gave no dollar figures, no timeline for relief, and no word on whether prices or limits will change.

The complaints behind the exchange were specific. Paying users reported weekly meters leaping overnight — one widely shared Cursor forum account described usage jumping from about 52% on Saturday night to 100% on Sunday morning, halting paid work mid-update — and neither xAI nor Cursor has said whether the jump was a metering fault, a change in how usage is counted, or both. xAI has never published how large the weekly pool actually is.

Grok Bot, launched on August 11, 2026, is xAI's autonomous agent: it works on its own virtual computer in the background on research, writing, browsing and multi-step jobs. It is not sold separately — it rides along with SuperGrok at $30 a month and up, Cursor plans, and X Premium tiers — and Gwynne Shotwell said in October it had reached roughly 800,000 paid weekly users. Fast growth, Musk's reply suggests, made the compute bill worse, not better.

A federal judge has denied xAI's motion to dismiss the NAACP's Clean Air Act lawsuit over the gas turbines powering its Colossus data centers outside Memphis. Judge Debra M. Brown's ruling, issued October 30 and reported October 31, lets every claim proceed; a similar Justice Department motion was denied earlier in October.

The suit, brought by the Southern Environmental Law Center and Earthjustice on behalf of the NAACP and its Mississippi conference and filed in April, alleges xAI installed and operated at least 35 combustion turbines and other pollution sources at the Colossus site without the required preconstruction or operating air permits. Other coverage of the Southaven plant that powers Colossus 2 puts 27 turbines installed between August and December 2025; the exact current count is disputed, and the allegations themselves have not been decided.

xAI argued the turbines were exempt as mobile sources and that Clean Air Act citizen suits are unconstitutional. Brown rejected all three lines: the plaintiffs have statutory standing, the turbines are not mobile sources under Mississippi's State Implementation Plan, and the citizen-suit provision violates neither Article II nor the private nondelegation doctrine. The case now moves into discovery over operating records and emissions data.

xAI will switch on invisible statistical watermarking across its Grok API text models by default beginning November 7, 2026, the company announced on October 31. The watermark covers several Grok model versions and applies to the api.x.ai endpoint, the Responses API and the Chat Completions API. It nudges token selection toward a statistical pattern while leaving the visible text unaltered.

Team administrators can disable the watermark for each model through the xAI Console, and consumer-facing Grok products are not affected — the change is API-only. Developers who do nothing will be shipping watermarked text from November 7.

The move marks a shift in xAI's stated position: the company had previously argued that AI text output should remain unaltered. It aligns Grok with the transparency demands of the EU AI Act — and it lands the same week Anthropic extended its own Claude text watermark to four more models.

Elon Musk acknowledged on October 30 that Grok 4.8's development has taken longer than expected, while promising the model will not disappoint. He said the team is not optimizing for benchmark tests and that he personally does not care about scores, placing greater emphasis on practical applications.

The delay is now substantial. On September 14, Musk said the 2.5-trillion-parameter model, trained on SpaceXAI's new C++ stack, would finish pretraining that week and move into reinforcement learning. More than six weeks later, Grok 4.8 has still not been released, and there is still no date, price or API model ID in any SpaceXAI document.

Musk has previously conceded the gap behind him: in a September interview he said Grok 4.7 falls short of Claude Opus 5.5 and might not catch the top tier until 2027. Grok 4.7 remains the current flagship in the meantime.

Neuralink engineers spent 72 hours at the home of Kenneth, a participant in its VOICE speech-restoration study who has lived with ALS for seven years, rapidly prototyping features to make communicating by thought more seamless. In an October 29 video and blog post, the company said the sprint compressed an estimated two to three weeks of progress into three days and more than 30 app versions, each tested with Kenneth on the spot.

The headline prototype connects the implant to xAI's Grok: Kenneth imagines saying "Hey Neuralink" followed by a task, and a Grok agent on his computer wakes up and carries out the operation itself. The team also built neural voice activity detection, which senses when Kenneth is preparing to speak and starts decoding within milliseconds — removing the button press that speech decoding used to need — and wired Bloom, Neuralink's speech app, into iPhone calling, so his brain-decoded speech feeds straight into a call. Kenneth used it to call his wife. Other prototypes included a lock-screen Live Activity so speech can start without unlocking the phone, and iOS keyboard dictation routed from the implant.

Neuralink is explicit that all of this is experimental: the devices remain investigational, have not been approved by the FDA or other regulators, and the new features are prototypes from a single at-home sprint rather than a shipping product. Elon Musk shared the demos on October 30.

Installer files labelled Grok Bot 1.0.0 have appeared on Cursor's download server, grokbot.guru reported on October 29. The site checked the Mac installer for Apple silicon on Thursday morning with a HEAD request — which reads a file's details without downloading it — and the server returned the 155.6 MB .dmg, dated October 27 at 6:14 p.m. CT. A check of the Windows x64 installer the same morning also returned a working response.

Nothing official matches it yet. SpaceXAI hasn't announced 1.0.0, the official Grok Bot changelog has no entry for it, and the newest official release there is still 0.78.1, released October 27, which added shopping cards and subscription templates. What the 1.0.0 version changes, and when it will be released, are not known. Kevin Logan posted on X on October 27 that "Grok Bot 1.0 Stable just showed up on the download server," and asked the next day whether anyone had seen it pushed out to users yet.

grokbot.guru advises waiting for the update to arrive through the app's Updates pane rather than installing 1.0.0 from a direct file link before SpaceXAI releases it. This stays a rumor until the changelog or an announcement lands.

An October 30 follow-up from TestingCatalog adds colour but no confirmation: it reports SpaceXAI is preparing Grok Bot 1.0.0 as the first stable release, with the build already downloadable ahead of an official rollout, and spots features in development alongside it — a more direct Microsoft Teams integration, a dedicated Tasks tab, a Texting tab in Settings with permissions to read and send text messages, and early signs of Discord support. None of those features has a confirmed timeline, and there is still no official 1.0.0 announcement or changelog entry, so the rumor stays unresolved.

An October 31 TestingCatalog daily brief goes a step further, describing Grok Bot 1.0 as 'the first stable build' that is out for download, and adds two more sightings: Grok Bots rolling out to X Chat, so users can message their bots like any contact without leaving the X app, and per-bot voice and voice-language settings. The build is plainly circulating — but there is still no announcement or changelog entry from SpaceXAI itself, so the rumor stays unresolved.

SpaceXAI's developer documentation and October release notes describe a new 'Custom moderation controls' option for Grok: a guidelines field on text requests through the Chat Completions and Responses APIs and the xAI Python SDK. It covers three categories — nsfw, violence and profanity — with, for now, a single behaviour, decline.

With nsfw set, Grok avoids sexual innuendo or sexualised conversation but still answers educational and clinical questions; with violence set, it avoids graphic depictions while still engaging with history and news; and with profanity set, it writes without profanity. Any category left out keeps the model's default behaviour.

The settings apply only to the request that carries them, so an app has to send them with every message, though the Python SDK can store them on a chat. They do not work with multi-agent models or deferred completions, and SpaceXAI has not announced the feature beyond its documentation or said how it tests that Grok follows the settings.

Real-estate agents working for xAI's subsidiary MZX Tech are offering to buy homes in the Colonial Hills neighbourhood of Southaven, Mississippi, next to the gas-turbine plant that powers xAI's Colossus data centers across the state line in Tennessee, The Guardian reported on October 28. One agent, in recordings the Guardian obtained, put the target at 418 homes; 18 households have already agreed to sell, and DeSoto County records show MZX has bought at least five homes since October 9.

Sellers sign two documents: a real-estate contract, and a release that waives all claims tied to the class-action lawsuit three neighbours filed in June against xAI and MZX Tech over noise and vibrations from the plant, which runs on 69 unpermitted gas turbines. The suit estimates more than 10,000 people live inside the affected area. The buyout letter denies the allegations but offers to purchase anyway, with amounts reportedly keyed to Zillow appraisal values; it names no price.

Renters in the area say they are being told to leave with 60 days' notice after their landlords agreed to sell. Southaven's mayor, Darren Musselwhite, told one plaintiff he might want to consider selling, and later called the buyout a goodwill gesture, saying the homes will house some SpaceXAI staff. A separate April lawsuit from the NAACP alleges Clean Air Act violations at the same plant.

In a 24-hour comparison published Tuesday, October 27, WIRED's Reece Rogers set up six always-on AI agents on his iPhone — OpenAI's Dots, Anthropic's Claude Duet, Meta's Muse, Google's Gemini Spark, xAI's Grok Bot and Instinct — and gave them five everyday tasks scored from 1 to 5. Only Dots and Claude Duet warned him about a deliberately planted scheduling conflict; the other four missed the overlap before it happened.

Rogers connected his personal Gmail and Google Calendar rather than his whole digital life, and judged the agents on initiative, instruction-following and browser use. The entry costs differed widely in his comparison: Dots at $100 a month, Grok Bot at $30, and Gemini Spark and Claude Duet at $20 each, with Muse free and Instinct invite-only.

The test is a useful early snapshot of the agent race the big labs are now running in public: having access to an inbox and a calendar, it turns out, does not guarantee an agent will connect the dots between them.

Traders are leaving xAI's Grok Bot running unsupervised on live brokerage accounts, Startup Fortune reports, and the gap between Elon Musk's promise and xAI's contract is the detail that matters. Interactive Brokers added Grok and ChatGPT integrations on June 22, letting users run portfolio analysis and issue order instructions directly from the conversation — and independent developers on platforms like Neura Market now pair Grok's analysis with Interactive Brokers execution in agents that run continuously.

The cautionary tale predates the brokerage push. In May 2026, an attacker sent a Bankr Club membership NFT to Grok's wallet and asked Grok to translate a Morse code message buried inside it. Grok decoded it, relayed the hidden instruction to its trading companion Bankrbot as if it were a normal request, and Bankrbot transferred roughly $200,000 worth of DRB tokens — 3 billion of them — to a wallet that was never supposed to get a cent. Nobody hacked anything; they just asked, in code.

After the heist, Musk told a user weighing whether to give Grok Bot access to a real bank account: 'Try it out. If Grok Bot messes up, we will make you whole.' Cybernews has reported that xAI's consumer terms cap the company's liability at the greater of the fees paid or $100. A promise made on X is not a contract, and nothing in that gap has been resolved publicly — worth knowing before any agent gets standing permission to move real money.

Families who allege that xAI's Grok turned real photographs of their children into sexual images are asking for their cases to be heard together. On October 2 a minor plaintiff asked the U.S. Judicial Panel on Multidistrict Litigation to transfer 26 federal actions involving Grok and other generative AI tools to the Western District of Arkansas for coordinated pretrial proceedings, before Chief Judge Timothy L. Brooks. The request decides only where the cases are heard, not whether the allegations are true; all of the claims remain allegations.

The Arkansas cases at the centre of the filings involve a children's photographer whom police arrested after a search reportedly found about 1,700 sexual images and videos of children, some allegedly created with Grok from ordinary school and family portraits. Six Arkansas children are plaintiffs in a proposed nationwide class action, filed by Beasley Allen, which alleges xAI failed to use safeguards other developers use and kept selling access to the image features. The filings cite research by the Center for Countering Digital Hate estimating Grok produced about three million sexualised images in eleven days around the new year, about 23,000 of them appearing to show children.

An investigation published October 24 by Crust News pulls the threads together: it reports that xAI has sued the photographer, sought to move the families' cases to a court in Texas, and argued the images are not its responsibility as the tool's maker. xAI's public response to reporters asking about the January images at the time was 'Legacy Media Lies,' and Elon Musk posted on January 14 that he was 'not aware of any naked underage images generated by Grok. Literally zero.' The coordination panel has not yet ruled on the transfer request.

xAI has updated Grok Bot on iPhone and Android with on-device connections for Calendar, Reminders, Contacts, Messages, location-based search and Home controls, Softonic reported on October 23. Users can ask Grok Bot to check their schedule, create calendar events and reminders, add contacts, read or send messages, find nearby places, and control smart home devices such as lights and locks.

That puts Grok Bot much closer to the phone assistants people already know from Siri, Google Assistant and Alexa. xAI says permissions are handled one app at a time rather than through a single all-or-nothing prompt, so a user could allow Reminders while keeping Messages blocked. The update also brings Apple CarPlay and iPhone Action Button support.

The company has shared little publicly about how the connected data is stored or kept separate, and the broader access is likely to draw more scrutiny over memory and safety. Grok Bot launched in beta on August 11 and is available through paid offerings including SuperGrok.