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The AI inbox that handles itself
Follow ups

GA
me, Lisa
Recap from earlier
Sharing a quick summary in case helpful as you look this over.

GA

GA
me, Jonathan
Checking in on this issue
Wanted to see whether you’d had any movement on this since my last note.
12 mins ago

GA
GA
Romaine, Jon
Great meeting you at the Tech Summit
It was great meeting you there, so I wanted to reach back out here.
2 hous ago

GA
Joseph, Patryk
Sharing the file here
Sending this over again here in case it is easier to reference.
4:50 PM

GA
GA
GA
me, Patryk, Louis
Had a chance to review?
Curious whether you’ve had a moment to take a look yet.
2:37 PM

GA

GA
Arthur, Louis
Glad we had a chance to connect
Reaching out again since I enjoyed our conversation and wanted to stay in touch.
1:19 PM
They handle any request, whether that's tracking down a receipt, booking a meeting, or drafting personal notes.
Meeting Follow Ups
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Honestly I used to dread my inbox. With Upstream everything's already sorted and half the replies are drafted, and now I actually enjoy doing email. Didn't think I'd ever say that.

Jo Widawski
Founder & CEO of Maze
What I love most about Upstream is the AI-powered drafts that sit right in my inbox, already written in my voice. It's been a huge time-saver, I can respond to emails so much faster without sacrificing quality or my personal touch.

Antoine Sakho
Product leader, ex-Pennylane
My co-founder and I were having a long-winded discussion about a competitor, and we honestly weren’t sure ourselves what exact conclusion we would update our investors on. So we copied and pasted the entire transcript into Upstream.And it made the most amazing response, written in my voice, that summarized everything better than I ever could.Insane stuff.

Phillip Baek
Founder & CEO @ Parrot
I love the shortcuts. It makes treating emails so much quicker and enjoyable. And I also love the design. It is thought through, finished unto the fine details and very clean and pleasant visually.

Eugen Gossen
Lirion
Upstream is the first email tool that actually reduced my workload instead of adding to it. The auto-drafts nail my tone, the triage is ruthless in the best way, and it handles my English/French context-switching without a single config change. It figured out how I work on its own — I never touched a setting. If you're building for superhumans, this is the infrastructure layer they've been missing.

Kabir Sethi
Bitstack
Inbox zero sounded like pure fiction until Upstream came along. I used to lose so much time every day and dread the time I'd have to spend sorting things out. But they just… get it. I went from dreading my email to looking forward to cleaning out my inbox!

Cédric Blanchard
Le French Product (podcast/creator)
Voice & Tone is Upstream's killer feature. It learns my style from past emails, so drafts come out sounding like me without prompting or pasting context. I get through my inbox much faster, without my replies sounding generated.

Benjamin Lalanne
Founder of Blynt AI
Upstream is one of the most useful tools we use daily. It's helped us save real time on information sharing across the team, reach inbox zero faster, and gain full visibility on what's happening in our inbox. Being able to chat directly over an email and automate most of our internal ops has been a game changer.

Mariem Ould Ismail
Co-founder of Stockline
Upstream streamlines my inbox routine. It structures emails, prioritizes them, drafts replies in my tone, and inserts my Calendly links where relevant. It makes responding 3–4x more efficient and helps me move conversations forward much faster.

Adam Hashchyshyn
Principal at Roosh VC
I was skeptical about AI email tools until I found Upstream. Upstream understands context and provides genuinely intelligent assistance. It catches nuances in conversations, drafts responses that sound just like meIt also categorises my conversations according to priorities. It has truly transformed how I manage my inbox.

Shuvayu Das Gupta
Co-Founder of Talos
































