Posts tagged with "featured"

M5 Ultra Mac Studio Review: The Dream Mac for Local AI Agents

The M5 Ultra Mac Studio.

The M5 Ultra Mac Studio.

For the past few days, I’ve been testing the (currently) top-of-the-line M5 Ultra Mac Studio with 256 GB of RAM.

I’ll cut to the chase: the M5 Ultra Mac Studio is a dream machine for local AI agents. This computer makes it possible to run personal assistants powered by local models with great performance and no additional cloud costs. If you’ve been skeptical of testing OpenClaw or Hermes Agent with local models because they’d never be even remotely near the intelligence and speed of cloud ones, this Mac will change your mind about that.

Since last Thursday, I’ve been comparing this Mac Studio to its predecessor, the M3 Ultra with 512 GB of RAM, as well as my own desktop gaming PC with an RTX 5090 inside. For its size, price, thermal performance – not to mention Apple’s approach to unified memory – the M5 Ultra Mac Studio has fundamentally changed how I think about models running locally and what they can enable now. A 5090, of course, still has an edge over the M5 Ultra thanks to its higher memory bandwidth. But considering the sheer size of my PC build, as well as its heat and noise, I would prefer an M5 Ultra Mac Studio any day. It also happens to be a Mac, with an operating system that looks nice and doesn’t suck, plus a vibrant app ecosystem. (Windows fans, I’m sorry, but Microsoft software will never get my sympathy.)

As I’ll explore in this article, running the latest Qwen3.8-Flash-Next model on the M5 Ultra Mac Studio has been so nice and fast, I’ve made it my default in both Open Minis for iOS and Hermes Agent. That’s right: the personal assistants I use the most – more than Siri AI, in fact – are now entirely powered by a model running locally on a Mac Studio. Furthermore, thanks to the M5 Ultra’s faster GPU and higher memory bandwidth, these agents start responding more quickly, stay fast at larger context windows, and can run long, multi-turn loops without slowing to a crawl as the session grows. Because of this, I’ve also been using local models in the Codex app on my Mac – either as main threads or subagents orchestrated by GPT-6 Astra – and I’ve had a great experience doing so.

Local subagents running in Codex on the M5 Ultra Mac Studio.

Local subagents running in Codex on the M5 Ultra Mac Studio.

I should note upfront that I’m not an AI developer by trade: I do not train or fine-tune models. I’m a tinkerer at heart, and I’ve been playing around with local AI models for over a year at this point. This summer, I went all-in on local AI usage for a big project I was working on, which I will explain in the following section.

My goal with this article is to provide you with a mix of two things: numbers and visualizations based on the (many) tests I’ve run over the course of four days, and an explanation of my practical use cases for local AI applied to my workflow and how I get things done for MacStories.

Let’s dive in.

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macOS 27: The MacStories Review

Every OS update has a story to tell. With macOS 27 Golden Gate, that story captures a moment when Apple is faced with multiple challenges, many of which are tied to the rise of large language models.

One of those challenges is obvious. Apple was caught off guard by chatbots, overpromised a response at WWDC in 2024, and has been playing catch-up ever since.

But this isn’t simply a story of missteps or wasted opportunities. There’s more to it than that.

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Our OS 27 Review Extras: eBooks, Shortcuts, and the Making of the iOS and iPadOS 27 Review

Today we published not one, but three reviews covering four OSes:

The reviews cover design, new app features and more, which kicks off a big week here at MacStories that includes extra special perks for Club MacStories members. Here’s what we have planned.

For Club MacStories members, we’ve got some exciting perks to help you get more out of the reviews:

  • An eBook edition of Federico’s iOS and iPadOS 27: The MacStories Review that you can download and read on your favorite device or app
  • 20 additional ready-made shortcuts for iOS 27
  • An eBook edition of John’s macOS 27 Golden Gate review
  • An eBook edition of John’s watchOS 27 review.

If you’re not already a member, you can join Club MacStories for $5/month or $50/year using the buttons below:

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iOS and iPadOS 27: The MacStories Review

After years of relentless building, it’s good to see Apple sweat the details again.

In the 11 years I’ve been writing annual iOS and iPadOS reviews every summer, I don’t think I’ve ever struggled to find an “angle” for my story as much as I did this year. The reason was twofold: I wasn’t particularly enamored with Siri AI and Apple’s belated chatbot efforts; and, as I realized during the summer, it can be challenging to write about an OS update that is largely focused on performance improvements and refinements.

“Everyone wants a so-called Snow Leopard year until it actually happens,” I thought to myself on several occasions over the past few months. Think about it: on paper, we all love a good ol’ basket of bug fixes that just make our phones better without changing much about the overall design and experience of iOS. It’s a commendable effort, and there’s no denying that iOS 27 is the snappiest (insert meme here), most stable version of iOS I’ve ever tested – and it has been since the first developer beta. In practice, though, it turns out that considering a major iOS update merely through the lens of improvements and fixes can be…a little boring.

So I’ve been sitting on this review for a while. I let it simmer. Then, a month ago, as I was sunbathing with my girlfriend Silvia down south in beautiful Vieste, Puglia, it hit me: iOS 27 is a geographically ambiguous update. Stay with me here. Depending on where you are in the world, this update can either be a little boring or pretty exciting.

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iPhone 18 Pro and iPhone Duo: The MacStories Overview

The iPhone Duo.

The iPhone Duo.

Apple’s iPhone lineup is taking a different shape this year.

At today’s Surprise and Shine event, the company introduced the iPhone 18 Pro and 18 Pro Max alongside the iPhone Duo, its first foldable iPhone. The Pro models build on the familiar design introduced last year, while the Duo marks the debut of an iPhone with a brand new form factor that combines a smaller, outer display with a larger, almost iPad mini-like internal display.

As a longtime iPad user who’s long been fascinated by foldables (and I’ve tried some over the years, too), I’ve been eagerly anticipating Apple’s debut in this space. Based on what we’ve seen today, it looks like Apple was able to deliver on the promise of a new iPhone category that combines the best of iOS with concepts borrowed from iPadOS, turning the iPhone into a versatile pocket computer that epitomizes Apple CEO John Ternus’ concept of the “personal hub”.

As we’ll see in this article, while the iPhone 18 Pro’s story largely revolves around the camera (unsurprisingly) and improved performance (some of the A20 Pro’s numbers are, in fact, a surprise merely a year after the A19 Pro), the iPhone Duo marks a new beginning for iOS, which now supports features that never existed on the platform before, as well as a series of interactions that Apple is exploring for the first time.

Let’s dive in.

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Apple Introduces Two AirPods 5 Models

Source: Apple.

Source: Apple.

Two years after bringing noise cancellation to its open-ear AirPods models, Apple is back with AirPods 5. Announced at today’s Surprise and Shine event, the new earbuds offer two models, both with Active Noise Cancellation (ANC). For those who prefer AirPods’ fit and the design without silicone ear tips, here’s what’s changed.

Source: Apple.

Source: Apple.

The biggest surprise is that both models of the new AirPods 5 feature ANC. When the AirPods 4 debuted, they were $129 for the model with no ANC and $179 for the model that included noise cancellation. Today’s update puts ANC in both models and retains the lower model’s $129 price tag. The second model is $20 more, which buys you a wireless charging case and slightly longer battery life.

According to Apple, the AirPods 5 feature a new acoustic architecture that eliminates up to 50% more external noise than the AirPods 4 with ANC. Transparency mode and Adaptive EQ have been improved, too.

As for that extended battery life on the more expensive model? Apple says you’ll get an additional hour of ANC listening, extending the battery life from four to five hours. With additional charges from the case, Apple claims up to 22 hours of listening with ANC enabled on the $149 model, compared to 20 hours on the $129 model.

Source: Apple.

Source: Apple.

The more expensive model also adds volume control to the stem of the AirPods 5, which wasn’t available in either model of the AirPods 4, and the case includes a speaker that works with Find My. Both models have been rated for better water resistance at IP57 compared to the AirPods 4’s IP54 rating.

I’m glad to see both models of the AirPods 5 support ANC and that Apple held the price on the base model. I think $20 for wireless charging, better battery life, and the other advantages of the top model is a great deal too. I’m not going to trade in my AirPods Pro, but the AirPods 5 are a good deal that I expect will sell fast during the winter holiday season.

You can follow all of our September 2026 Apple event coverage through our September 2026 Apple Event hub or subscribe to the dedicated September 2026 Apple event RSS feed.

Apple Watch Series 12 and Apple Watch Ultra 4: The MacStories Overview

Source: Apple.

Source: Apple.

At today’s Surprise and Shine event, Apple introduced the new Apple Watch Series 12 and Apple Watch Ultra 4. Both models build on the devices’ existing designs, adding new health and fitness features as well as what Apple calls Audio Intelligence. The star of the Apple Watch show that powers those features on both models is the brand-new S11 chip. Let’s dig into the details of what the new chip and improved sensors means to both models.

Apple Watch Series 12

The Series 12 takes a heart reat measurement every five seconds. Source: Apple.

The Series 12 takes a heart reat measurement every five seconds. Source: Apple.

The new Apple Watch Series 12 comes in 42 and 46mm sizes and is equipped with the new S11 chip. Apple says that enables the device to take sixty times the heart rate measurements and 24x HRV readings compared to the Series 11 Watch. More heart rate measurements and HRV readings mean more accurate and meaningful readings; in fact, better than any other wearable on the market, according to Apple. Apple says step tracking is more accurate, too.

The Series 12 has improved sensors, too. There’s a larger, more power-efficient green LED array for measuring your heart rate every five seconds and a Secure Exclave for processing audio privately and securely. On the outside, the Series 12 features Ceramic Shield 2, making it tougher than the Series 11. The case is now IP6X rated for dust and can be used to six meters of depth. Plus, the battery is rated to last 24 hours during normal use and a 15-minute charge will power it sufficiently to last 12 hours.

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Apple’s Surprise and Shine Event: By the Numbers

Apple covered a lot of ground at today’s Surprise and Shine event, and the numbers help put the announcements in perspective.

After every Apple event, we like to collect the notable specs, comparisons, and other stats from the presentation and Apple’s supporting materials (Tech Specs pages and Newsroom posts). This year, I wanted to make this article a little more special than usual, so I did two things: I set up a workflow to collect even more data during the event (a combination of transcription and, later, YouTube summarization), and I’ve created a few interactive widgets explore some of the latest specs and numbers in more detail.

You can find the complete set of numbers below. Enjoy memorizing all of these.

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All the ‘Surprise and Shine’ Release Dates and Features, Visualized

At today’s Surprise and Shine event, Apple announced a lot of dates. Most of the new hardware arrives on September 18, but the brand new iPhone Duo won’t launch until October. Before then, Apple’s next round of major OS updates arrives on September 14.

Here’s a rundown of the preorder, release, and rollout dates. Later today on MacStories, John and I will be sharing detailed overviews of all the major announcements from today, and you can expect our annual OS reviews to be published – as always – next week.

As a bonus, check out the calendar widget we’ve prepared to visualize all of Apple’s release notes. Stay tuned for more of these on MacStories today: we’re going to have some fun with our coverage this year.

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