copilot creation at @microsoft
Joined March 2009
- Tweets 6,652
- Following 1,782
- Followers 3,371
- Likes 40,647
615 Photos and videos
Trevor O'Brien retweeted
May 28
Today we’re launching Command Line, a new technical blog about how and why we build.
Our first stories go behind the architecture, design decisions, and research shaping the next wave of developer tools.
Stay tuned for more next week at #MicrosoftBuild msft.it/6013vkN8f
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Apr 16
Opus 4.7 — rolling out to Copilot in Excel today!
We'd love feedback from the @msexcel community as you try out this new model from @AnthropicAI
Apr 16
Today we’re expanding model choice in Microsoft 365 Copilot with the addition of Anthropic’s latest model—Claude Opus 4.7—in Copilot Cowork via the Frontier program, Copilot Studio early release cycle environments, and rolling out to Copilot in Excel.
Start exploring: msft.it/6016Qhgsm
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Apr 8
These Artemis posters from @Prof_Kalkyl are something special. Channeling a ray of light during a dark time.
Apr 8
Full static grid. Personal favorites: 2 and 7.
A lot of you reached out about buying prints, but since this is NASA's intellectual property that would require an official collaboration.
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Jan 29
it's been super fun to see @Copilot and @msexcel showing up during NFL playoff games.
(not always as fun being surrounded by @Seahawks fans all day at work though!)
youtu.be/Ndj9Jk-tGKo?si=RKPA…
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Jan 28
not wrong
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Jan 28
Agent Mode in Excel is available and unlimited for all Copilot Premium customers.
Also available to all M365 Personal and Family customers on a credits based system. Available across the globe in multiple languages, coming soon to the EU and UK.
(Never used Ramp Sheets but I’m sure it’s sick 🤷🏻♂️)
Jan 28
"Look we saw Ramp Sheets, and honestly it was sick, so we reactively pulled this forward on our roadmap. We hope you* enjoy it.
*Agent Mode is generally available... for 365 copilot premium super duper plus customers in select markets within select regions of certain planets that may or may not be within this solar system."
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Trevor O'Brien retweeted
Jan 27
Agent Mode is now live in Excel. Huge moment for all of us who are "proficient in Excel"
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Jan 27
📈 Today, we're launching Agent Mode in Excel on Windows and Mac. An Excel Copilot that can work with you and make edits in your spreadsheet like an expert collaborator.
We're also introducing a new, multi-model system that supports both GPT models from @OpenAI and Claude models from @AnthropicAI. Wanna try Claude Opus 4.5 natively in @msexcel? We've got you.
Give it a shot and let me know what you think.
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Jan 23
current status: level 6
working on letting Claude Code go nuts with Nano Banana. i'm gonna need to check my credit card before moving up a level
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Jan 23
this is also one of the most fun, provocative, and unhinged technical reads of all time. i love it. steve-yegge.medium.com/welco…
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Jan 23
so impressed by @micro1_ai. happy and thankful i could play a small part in getting partnership with @Microsoft going.
also thankful for @adambain making the connection!
Jan 14
as of today (Jan 2026), micro1 has never lost a penny.
7 figure profits in 2025 and historically profitable while maintaining 20% MoM growth.
we hire when we absolutely have to and care deeply about capital efficiency across the org.
ultimately we’re very grateful to be able to determine our own destiny as a result.
if this resonates, we’d like to hear from you as we (slowly) expand the team: micro1/careers
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Trevor O'Brien retweeted
Jan 6
I'm hiring a PM for something new. If you know a great product manager who lives in London (or who would like to) please pass this on! tldraw.dev/careers?ashby_jid…
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Trevor O'Brien retweeted
30 Sep 2025
Happy 40th, Excel! =REPT("🎉",40)
From unlocking population-scale number-sense to now ushering in a new era of analysis-sense with AI, it’s impossible to imagine my work- or the world-without it.
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Trevor O'Brien retweeted
29 Sep 2025
2/ Tell Agent Mode in Excel what you're trying to achieve, and Copilot generates outputs, checks results, fixes issues, iterates, and verifies all of it.
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9 Apr 2025
Huge congratulations to @steveruizok and the team at @tldraw! No one better in the creative tools game.
Proud to be an investor and a small part of their story.
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9 Apr 2025
Check out more on what they’re up to after the fundraise tldraw.dev/blog/announcement…
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