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A collection of 32 posts

Grok 5 Training on Colossus 2: xAI's 1.5GW Supercluster Expansion Detailed

Grok 5 Training on Colossus 2: xAI's 1.5GW Supercluster Expansion Detailed

Training for Grok 5 is underway on Colossus 2, and the infrastructure story behind it is remarkable. xAI's Memphis supercluster is on track to hit 1.5 gigawatts of compute capacity by April 2026 — a scale that has no direct equivalent in the industry. In March, the company

03 Apr 2026 1 min read

Grok 4.20 Leads April 2026 with Multi-Agent Beta and 2M Context Window

Grok 4.20 Leads April 2026 with Multi-Agent Beta and 2M Context Window

xAI has shipped Grok 4.20, and the numbers are striking. The new model sports a 2 million token context window — enough to process entire codebases, legal documents, or research archives in a single pass — while hitting a throughput of 265 tokens per second, one of the fastest output speeds

03 Apr 2026 1 min read

Elon Musk Champions Grok's Real-Time Accuracy Over ChatGPT and Claude

Elon Musk Champions Grok's Real-Time Accuracy Over ChatGPT and Claude

Elon Musk took to X on April 3rd to make his case directly: Grok, xAI's flagship chatbot, beats ChatGPT and Claude where it matters most — real-time accuracy. In the post, which quickly accumulated hundreds of thousands of views, Musk pointed to Grok's live web access as

03 Apr 2026 1 min read

Prediction Market: Grok 5 by June 2026 Crashes to 12% — Traders Pricing In a Delay

Prediction Market: Grok 5 by June 2026 Crashes to 12% — Traders Pricing In a Delay

The Polymarket prediction contract on Grok 5 launching before June 30, 2026 has collapsed — falling from around 68 cents just two weeks ago to a mere 12 cents as of early April. The NO side now sits at 88 cents across nearly $300,000 in contract volume, meaning the market

02 Apr 2026 1 min read

Grok 4.1 Fast Lands on All Platforms: 50% Price Cut, 2M Context Window, Four New API Features

Grok 4.1 Fast Lands on All Platforms: 50% Price Cut, 2M Context Window, Four New API Features

xAI's Grok 4.1 is now live across every major surface — grok.com, X, iOS, and Android — with the faster Grok 4.1 Fast variant simultaneously rolling out on the xAI Enterprise API. The release is headlined by an aggressive pricing reset: input tokens drop to $0.20

02 Apr 2026 1 min read

Inside Colossus: How xAI Built the World's Largest AI Supercomputer

Inside Colossus: How xAI Built the World's Largest AI Supercomputer

When xAI set out to build Colossus in Memphis, Tennessee, the goal wasn't just to assemble a powerful GPU cluster — it was to build the fastest path from zero to frontier-scale AI training. What emerged in just 122 days was a 100,000 NVIDIA H100 GPU supercomputer, the

02 Apr 2026 1 min read

SpaceX Files for $1.75T IPO — With xAI and Grok Listed as Core AI Assets

SpaceX Files for $1.75T IPO — With xAI and Grok Listed as Core AI Assets

SpaceX filed its IPO prospectus this week targeting a valuation of up to $1.75 trillion — which would make it the largest public offering in history, raising more than $75 billion. For anyone tracking xAI and Grok, the filing carries a specific significance: under the "K2" corporate restructuring

01 Apr 2026 1 min read

Baltimore Mayor Sues xAI: Grok Generated 6,700 Sexualized Images Per Hour

Baltimore Mayor Sues xAI: Grok Generated 6,700 Sexualized Images Per Hour

Baltimore has become the first American city to file a lawsuit against xAI, with Mayor Brandon Scott bringing a case in Baltimore's circuit court that alleges Grok violated consumer protection laws by generating nonconsensual sexualized imagery and child sexual abuse material. The lawsuit is anchored by a striking

01 Apr 2026 1 min read

Former Swiss President Files Criminal Charges Over Grok-Generated Sexist Abuse

Former Swiss President Files Criminal Charges Over Grok-Generated Sexist Abuse

Switzerland is becoming an unlikely flashpoint in the global debate over AI liability. Karin Keller-Sutter, the country's Finance Minister and a former president of the Swiss Confederation, has filed criminal charges with the Bern public prosecutor's office after a user on X prompted Grok to produce

01 Apr 2026 1 min read

Users Report Grok Imagine Extension Voiceover Bug — xAI Is Fixing It

Users Report Grok Imagine Extension Voiceover Bug — xAI Is Fixing It

Users of Grok Imagine's video extension have flagged a recurring bug in which voiceover audio falls out of sync with generated video content, producing clips where the narration no longer matches the visual timeline. The issue has surfaced across multiple reports, and xAI has acknowledged the problem, confirming

01 Apr 2026 1 min read

Grok 4.20 vs GPT-5.4 vs Claude Opus 4.6: Which One Should You Use?

Grok 4.20 vs GPT-5.4 vs Claude Opus 4.6: Which One Should You Use?

A detailed benchmark shootout pitting Grok 4.20 against GPT-5.4 and Claude Opus 4.6 confirms what many developers have suspected: there is no universal winner among 2026's frontier models. The gap between the top systems has narrowed significantly, and the right choice increasingly comes down to

01 Apr 2026 1 min read

Grok Computer: xAI's AI Agent That Controls Your Entire PC — Everything We Know

Grok Computer: xAI's AI Agent That Controls Your Entire PC — Everything We Know

Elon Musk has confirmed that xAI is working on "Grok Computer," an autonomous AI agent capable of taking full control of a user's desktop — clicking buttons, typing text, navigating applications, and executing complex multi-step workflows without human intervention. The feature was quietly uncovered on March 20th

01 Apr 2026 1 min read

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