Paul Shell

@Microsoft Alum | @GauntletAI 🛡️ 1 | Philomath

[Mustafa Suleyman @mustafasuleyman]

It’s time to move from renting intelligence to truly controlling your AI. Microsoft Frontier Tuning lets you take our models and make them uniquely your own, turning them from capable generalists to completely custom partners.

It starts with reinforcement learning environments (RLEs) that allow our models to learn directly from your workflows. Think of them as training gyms for AI. Here the agent learns your very specific processes, your standards, your way of working. It goes from off-the-shelf to hyper-adapted to exactly what you and your teams need. Those adaptations drive efficiency and performance, and your unique models can keep continually learning in your RLEs. This changes the nature of AI – and it changes the impact.

For example, within Microsoft we use our RLEs combined with our MAI models to climb towards the best agentic use cases for Excel. Our MAI tuned model is on par with GPT-5.4 on public and private benchmarks, while being up to 10X more efficient.

Only you control your agents made with Frontier Tuning. You keep the benefits of your hard-earned know-how, data and institutional knowledge. With us, the RLEs and the models you build in them become your moat.

This is distinct. It’s a new era. An era of AI that you control, on your terms. I think it’ll be a good one. More on the blog: https://t.co/v65eop5aHS

[Paul Shell @PaulShellDev]

@davidfowl @shanselman (Don't tell them you win, but I'll watch you live and their recording later)

[Paul Shell @PaulShellDev]

I want a VS Code Lego

I'd paint it green for Insiders

[Paul Shell @PaulShellDev]

@CameronFoxly So fun and interesting behind the scenes

[Cameron Foxly @CameronFoxly]

The new GitHub Copilot app opened up to public preview today, and if you explore around the home view, you'll find an Octocat easter egg mini game that I snuck in. I had so much fun noodling on details, and thought I'd share some nerdy deets of what it took to set it up 🤓 🧵...

[Satya Nadella @satyanadella]

Building a frontier intelligence ecosystem together.

Highlights from my keynote at Microsoft Build this morning.

[Paul Shell @PaulShellDev]

@burkeholland @github Any idea if it's VS Code only or coming to the Copilot App too?

[Microsoft AI @MicrosoftAI]

Seven new models launching at Build: let’s go!
Reasoning. Code. Image. Transcribe. Voice.

Built from scratch on a clean data lineage, designed for efficiency, working seamlessly as a family of models

Thread 🧵
#MSBuild

[Paul Shell @PaulShellDev]

It's the most wonderful time of the year 🎶

[Microsoft @Microsoft]

Microsoft's @satyanadella kicks off Microsoft Build 2026 on June 2 at 930am PT. We'll be sharing what's new across AI, agents, and more. Save the Date!

https://t.co/yGOUHrDVFW

[Paul Shell @PaulShellDev]

Awesome!

[David Fowler @davidfowl]

We've been building up a catalog of skills that @aspiredotdev team uses to drive up the quality on changes made by agents (we're all using them). First, the 3 most important skills:

code-review
https://t.co/mRn1831ImL

pr-testing
https://t.co/Sng8Pk5IOz

create-pr
https://t.co/vIHDWWDlUg

[Jeff Hollan @jeffhollan]

Great new doc published for any agent builders who are also using @github Copilot CLI / App, Claude Code, or any other coding agent. Now you can add skills to help your coding agent be an expert in deploying to Microsoft Foundry! https://t.co/gsMOXwNG7U 🥳

[Paul Shell @PaulShellDev]

Miss you, Wulfie

[Paul Shell @PaulShellDev]

Just saw The Mandalorian and Grogu

Loved it like I love the show

4DX at @RegalMovies was AMAZING for it
Rollercoaster with all those ships, air & water spraying, fight scenes 🤩

I need to work on my Stormtrooper armor now

[Paul Shell @PaulShellDev]

VS Code Agents has an aquarium

They're hungry little logo fishies

[Quick Thoughts @lthlnkso]

Why are so many people afraid of data centers?

[Paul Shell @PaulShellDev]

@Austen LFG Cohort 5! Y'all got this!

[Paul Shell @PaulShellDev]

@elonmusk What in the world did the 50 from USA say?

[Paul Shell @PaulShellDev]

@Austen Oh, that explains Opus 4.7

[Paul Shell @PaulShellDev]

@SantoshYadavDev Half of me concerned for endless falling

The other half looking at the top to see if it'll reappear up there

😱