🚨 BREAKING: A security researcher has demonstrated a self-propagating "AI worm" inside Microsoft Copilot for Word.
Hidden white-on-white text in a shared document, invisible to the user, but readable to Copilot, which strips formatting before processing, makes the assistant silently alter financial figures and paste the same hidden prompt into the files it drafts. Those files then carry the attack to colleagues, with no further attacker involvement.
After 144 days of coordinated disclosure and multiple Microsoft fixes, including a model upgrade, the vulnerability class is still exploitable.
https://t.co/9e4eY7m1P7
Grok 4.5 just got even cheaper to run
As Elon promised, SpaceXAI has cut cached-input pricing from $0.50 to $0.30 per million tokens......a 40% reduction. For contexts above 200K tokens, cached input dropped from $1.00 to $0.60
This matters a lot for:
• Long-running coding agents
• Multi-turn conversations
• Repeated repository context
• Tool-heavy workflows
• Large system prompts
• Autonomous agent loops
Successful cache hits now cost nearly 7× less than regular input. At 100 million cached tokens, the cost falls from $50 to $30......pure savings that scale fast on real production workloads
Grok 4.5 was already fast and token-efficient. Now it’s even more cost-efficient to build with
Soon Grok Build will be getting one of its biggest upgrades yet
An App Deployer is in development:
- You describe the app you want
- Grok builds it
- Click Publish
Your app goes live instantly on a https://t.co/MvQ55NLQru URL for anyone to access
The preview also shows:
• One-click deployment
• Starter templates (games, dashboards, 3D, audio, productivity)
• Custom domain support
• Instant sharing with a public link
This will take Grok Build beyond generating code
It is going to become a complete idea-to-deployment platform, where you can build, publish, and share applications without leaving Grok
Introducing Voice Agent Builder: a no-code platform to create human-like voice agents with Grok Voice.
Available today at $0.05 / min.
https://t.co/kUkF7zqvfR
We’ve received notice that the Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5.
We'll begin restoring access tomorrow, and will share an update soon.
We’re grateful to our users for their patience, and to everyone who worked with us on redeploying the models.
Meet Gemma 4 12B Agentic Fable5: a locally run GGUF model that thinks, reasons, and uses tools like a pro. It's built for coding, terminal tasks, and agentic workflows. 206k downloads can't be wrong.
Grok expansion this month is unbelievable
Most people still do not realize what is happening
Grok is being plugged directly into the tools people already use every day:
• Interactive Brokers — portfolio analysis, market research, strategy + order instructions
• AWS Bedrock — enterprise access to Grok 4.3
• Databricks — AI agents + data workflows
• Microsoft Word, Excel & PowerPoint — office productivity
• Vapi — voice agents
• eToro — real-time market sentiment inside Tori
• Gopuff — AI shopping assistant
• Warp — coding + terminal workflows
• T3code — AI coding-agent workflows
• Vercel — deployments, build status + domains
• MongoDB — database management + queries
• Sentry — debugging + error analysis
• Cloudflare — Workers + infrastructure tools
• Chrome DevTools — browser control + performance testing
• Firecrawl — web search, scraping + page interaction
• Superpowers — agent workflow plugins
And that is not even the full list
Grok Build also added /goal for long-running autonomous tasks, Agent Dashboard for managing multiple coding sessions along with Grok Build 0.1 & Grok Composer 2.5
Grok Imagine Video 1.5 is now faster, better, and live across API, web, iOS, and Android
Grok Connectors already plug into Google Workspace, Outlook, SharePoint, OneDrive, Notion, GitHub, Linear, and custom MCP servers
Finance. Cloud. Coding. Voice. Shopping. Data. Office work. Browsers. Developer tools. Agents
Grok is moving from “AI you chat with” to “AI that works inside everything”
xAI’s execution speed right now is insane
Since June 12, we’ve been working closely with the US government to restore access to Claude Mythos 5 and Fable 5. Today, the government notified us that Mythos 5, our strongest cybersecurity model, can be redeployed to a set of US organizations that operate and defend critical infrastructure.
We’re restoring access for these organizations quickly, and we’re continuing to work with the government to expand access to Mythos 5 and make Fable 5 available for general use again.
Introducing a limited preview of GPT-5.6 Sol, our next generation frontier model, as well as GPT-5.6 Terra, a balanced model for efficient, everyday work, and GPT-5.6 Luna, a fast and affordable model for high-volume work.
https://t.co/OoM83SyISN
Your Hermes Agent can now adopt an animated pet: a small sprite that reacts to what the agent is doing (idle, running a tool, thinking, waiting, finishing, failing) in the GUI or TUI.
You have nearly 3000 pets to choose from via the petdex gallery, or you can submit your own.