An algorithm that worksfor you, not your feed.
Before your brief at 7:00
What arrived overnight
- Read
- 214
- Kept
- 18
- Merged
- 9
- H
Huberman Lab, watch guide, 3 moments
Tools to improve your focus and concentration
KeptWatch guide, 3 momentsKept - B

Big Technology, same story as 2 others
Anthropic's IPO and our collective leap of faith
MergedSame story as 2 othersMerged - S
Substack, receipt
Your receipt for a paid subscription
SkippedReceiptSkipped - N

Not Boring, you read every issue
Weekly Dose of Optimism #213
Moved upYou read every issueMoved up - T
The Verge, your rule: no gadget roundups
Every gadget announced this week, ranked
SkippedYour rule: no gadget roundupsSkipped - L

Lenny's Newsletter, top story
How the best product teams decide what not to build
KeptTop storyKept
Two kinds of algorithm
Your feed wants your time.Summate gives it back.
- A feed's algorithm: Wants as much of your time as it can get. Summate's algorithm: Saves as much of your time as it can.
- A feed's algorithm: Shows what gets clicks. Summate's algorithm: Shows what matters to you.
- A feed's algorithm: Never ends. Summate's algorithm: Ends when you're caught up.
- A feed's algorithm: Decides in secret. Summate's algorithm: Shows what it skipped, and why.
An example morning: 8:12 and still scrolling in a feed, or 7:11 and caught up with a brief.
Every morning
What happens before your brief arrives.
Eight things, in order, for every piece your sources published since the last brief.
- 1 of 8
It clears out the noise
Newsletters are full of things that aren't news: ads, sales, receipts, sign-up emails and posts that only sell something. Summate spots them and takes them out before your brief is written, so they never cost you a minute, or a credit.
6 new- LNews
Lenny's NewsletterHow the best product teams decide what not to build
- SSubstackReceipt
Your receipt for a paid subscription
- PAd
Platformer
Sponsored: the CRM fast-growing teams switch to
- BNews
Big TechnologyAnthropic's IPO and our collective leap of faith
- WWebinarsPromotion
Last chance: 5 growth levers, live on Thursday
- MMorning DigestSign-up email
Please confirm your subscription
- 2 of 8
It follows your rules
Tell it what you don't want, the way you'd tell a friend: “No sports.” “Skip crypto prices.” Every piece is checked against every rule, and you can see what each rule caught.
Your rules
- “No sports”caught 36 this week
- “Skip crypto prices”caught 13 this week
- “Nothing about celebrity gossip”caught 4 this week
- Add a rule, like “no product launches”
Champions League: the night's results
Skipped by your rule “No sports”
- 3 of 8
It knows your topics
Name the topics you care about, or let Summate suggest them from your sources. Each story lands under the right one. Something off topic only gets in when it's big news, marked “Other notable”.
AIStartupsMarkets+ Suggest from my sourcesAI
- I
Notes on this month's open model releases - S
Twelve things I learned shipping with LLMs
Startups
- a
Where the next wave of consumer apps comes from
- L
Building a product org from zero to 500
Other notable
The Fed cuts interest rates for the first time this year
Not one of your topics, but big enough to mention.
- I
- 4 of 8
One story, not five copies
When several of your sources cover the same news, you get it once, from the best version, with a note of who else covered it. A story many of them cover moves up, because it probably matters.
B
Big TechnologyAnthropic's IPO and our collective leap of faith
N
NewcomerAnthropic's IPO can't wait forever
PPlatformer
What Anthropic's filing tells us about the AI race
In your brief, once
Moved upAnthropic files to go public
BCovered by 3 of your sources
N
P - 5 of 8
Biggest first, short every day
Stories are ranked by how important they are and how well they fit you. A busy Tuesday and a quiet Sunday both come out as a short read, and no single source can take over.
Busy Tuesday
412 pieces arrived
11 minQuiet Sunday
46 pieces arrived
8 minNo single source gets more than a quarter of your brief.
- 6 of 8
It checks every takeaway
Each takeaway is checked against the words it came from. If the source doesn't back it up, it's dropped. In the reader, tap any takeaway to see the exact passage.
Write the no-list first, and share it before the pitches.
Checked against the source
“The teams that ship the most write down what they won't build this quarter, and they share that list before anyone pitches.”
×Most teams plan their roadmap twice a year.
Dropped: the source doesn't say this
- 7 of 8
It learns what you like
Summate notices what you open, read to the end, star and highlight, and gives more room to the sources and topics you love. It learns only from your own reading, and it never hides a topic you asked for.
What it learned
Week 1 → week 6- N
Not BoringYou read every issue - S
Simon Willison's WeblogYou highlight his posts
- L
Lenny's PodcastYou finish the episodes
- T
The VergeYou skip most of it
Your topics and rules always come first. Learning only changes the order.
- 8 of 8
It shows its work
At the bottom of every brief: how much it read, what it merged, and what it skipped and why. One tap shows everything it left out, so nothing disappears quietly.
At the bottom of today's brief
Read 214 pieces from 32 sources. Kept 18, merged 9.
Skipped 187
- 45 off your topics
- 52 ads and promotions
- 41 minor
- 36 sports, your rule
- 13 crypto prices, your rule
See everything it skipped
Will I miss something important?
Big stories get in even when they're outside your topics, marked “Other notable”. And the bottom of every brief lists everything that was skipped, with the reason, so you can check.
How does it learn what I like?
From what you do with your brief: what you open, how far you read, what you star and what you highlight. It starts neutral and settles over a few weeks of reading. Your topics and rules always come first.
Is my reading used for anything else?
What you read tunes your own brief, and it's never used to rank anyone else's.
Do skipped pieces use my credits?
No. Ads, receipts and anything skipped are taken out before summaries are written, so credits are only spent on what makes your brief.
Can I change how it decides?
Any time. Add or edit topics, write or remove rules, group your brief by topic or by source, and leave notes like “explain the jargon”.
What does it do with videos?
The same: it watches the whole episode, keeps the moments worth your time with their timestamps, and puts long videos in a watch guide with a line on why each is worth it.
Tomorrow at 7:00,an algorithm on your side.
Pick your sources and a time. Your first brief is written from what they published this week.