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Welcome back to BrainBuzz
Today’s Recipes:
🧠 Grok Joins Word, Excel & PowerPoint...
💸 Amazon May Soon Bring Ads to ChatGPT
🍎 Apple Might Let Users Choose Their AI Assistant
OpenAI’s IPO Faces Another Delay
Apple May Be Coming for Mobile Gaming
Third OpenAI Agent Attack Revealed
AI Tutorial of the Day
And More….
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LATEST DEVELOPMENTS
Microsoft adds SpaceXAI’s Grok models to Office Copilot, letting users choose between GPT, Claude, and Grok in Word, Excel, and PowerPoint. Preview rollout aims to gather feedback.
🔍 Details
Microsoft integrated Grok into its Foundry service last year.
Now, Grok is available directly in Word, Excel, and PowerPoint via the Copilot model picker.
Users can select between OpenAI’s GPT, Anthropic’s Claude, and SpaceXAI’s Grok.
The rollout starts as a preview release to collect user feedback.
🎯 Takeaway: Microsoft is diversifying Office Copilot by offering multiple AI models, giving users more choice and flexibility in productivity tools.
Amazon Ads partners with OpenAI, letting U.S. advertisers extend campaigns into ChatGPT via Amazon’s DSP. OpenAI gains Amazon’s $70B ad infrastructure to chase its $100B ad target.
🔍 Details
On Sept. 10, Amazon Ads and OpenAI launched a pilot for ChatGPT ad placements.
Advertisers can buy ChatGPT ad space through Amazon’s DSP; Delta Vacations is among early testers.
Amazon manages campaigns, but OpenAI decides which ads appear and where.
Neither company gave up full control of the process.
OpenAI’s main gain is Amazon’s $70B ad machine and infrastructure, crucial for its $100B ad revenue goal.
🎯 Takeaway: Amazon’s ad network is now powering ChatGPT campaigns, giving OpenAI scale and infrastructure it couldn’t build alone, marking a major step in AI-driven advertising.
Apple’s new Siri architecture in iOS 27 and macOS Golden Gate allows third-party AI models like ChatGPT and Claude to act as Siri, handling tasks and integrating with Apple apps.
🔍 Details
Code in iOS 27/macOS Golden Gate shows Siri supports Model Delegation for third-party AI models like Claude and ChatGPT.
Users can pick models via an “Ask…” menu; Claude can set reminders or create files Siri couldn’t handle.
Another protocol lets Siri’s server-side model be fully swapped with alternatives like GPT-5.6.
ChatGPT can access Apple system tools, summarize emails, and send messages via Siri’s interface.
EU’s Digital Markets Act likely influenced Apple to open Siri to third-party AI integration.
Currently, only ChatGPT is live in macOS 27 RC; Claude support is not yet available.
🎯 Takeaway: Apple is transforming Siri into a flexible AI hub, allowing users to swap in models like ChatGPT or Claude, signaling a major shift toward openness and interoperability in Apple’s ecosystem.
Together With
Blu Dot surpasses 2,000% ROAS with self-serve CTV ads
Home furniture brand Blu Dot blew up on CTV with help from Roku Ads Manager. Here’s how:
After a test campaign reached 211,000 households and achieved 1,010% ROAS, the brand went all in to promote its annual sales event. It removed age and income constraints to expand reach and shifted budget to custom audiences and retargeting, where intent was strongest.
The results speak for themselves. As Blu Dot increased their investment by 10x, ROAS jumped to 2,308% and more page-view conversions surpassed 50,000.
“For CTV campaigns, Roku has been a top performer,” said Claire Folkestad, Paid Media Strategist, Blu Dot. “Comping to our other platforms, we have seen really strong ROAS… and highly efficient CPMs, lower than any other CTV partner we've worked with.”
Using Roku Ads Manager, the campaign moved from a pilot to a permanent performance engine for the brand.
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ShopPilot Your AI ecommerce consultant, working across all your tools
MORE AI & TECH UPDATES
OpenAI, one of the most closely watched tech companies, has confirmed that its highly anticipated IPO will not take place in 2026…
A growing debate over the future of artificial intelligence has intensified after Anthropic CEO Dario Amodei called for slowing down AI development to “pace the frontier.”..
Apple is reportedly working on two game controllers designed specifically for the iPhone, according to Bloomberg’s Mark Gurman…
In May 2026, RubyGems, a widely used package repository for the Ruby programming language, was hit by a major malicious attack involving hundreds of spam and harmful packages…
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THAT’S A WRAP
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