We benchmarked 12 open-weight models on long-context retrieval. Results surprised us
Read Reddit, not the noise.
Sifty reads every post in your feed and hides what you didn’t come for. Pick a mindset, scroll as usual, and the rage bait, the spam and the news you’re avoiding quietly fold away.
Works on www.reddit.com · Chrome and Firefox · sign in with Google
On Reddit
Your feed, minus the noise
Sifty works inside the page you already use. Each post gets a small tag that says what Sifty decided. Posts that don’t fit your mindset collapse into a one-line bar, and you can always open them.
- Tags, not guesses. A post Sifty isn’t sure about stays visible and says so: “AI?”
- Nothing disappears silently. Collapsed posts say why, and “Show” brings them back.
- The post you opened is never hidden.
Patch series adds a Rust implementation of XArray “to test if Rust delivers what it promises for a core kernel data structure”
https://lore.kernel.org/rust-for-linux/20260923-rxarray-next-v1-0…
A tour of the new garbage collector, with benchmarks
Mindsets
One feed, three moods
A mindset decides what Sifty shows. Switch in the toolbar popup whenever your day changes; switching is instant, because Sifty remembers what it already read.
FocusFor deep work
- Wants
- Tech, AI, Stocks & investing
- Hides
- Politics, War & tragedy, Gaming, Sports, Entertainment
- Hidden posts
- Collapse · Strict
CalmFor the evening
- Wants
- Any topic, humor welcome
- Hides
- Politics, War & tragedy, Crypto
- Hidden posts
- Dim · Relaxed
LearnFor curiosity
- Wants
- Science & space, Tech, Personal finance, Health & fitness
- Hides
- Politics, War & tragedy
- Hidden posts
- Collapse · Balanced
Every mindset hides junk: rage bait, AI slop, spam, self-promotion and ads.
Getting started
Set up in a minute
-
1
Add Sifty to your browser
From the Chrome Web Store or Firefox Add-ons. It only runs on reddit.com.
-
2
Sign in with Google
One click in the toolbar popup. Sifty uses your account only to give everyone a fair daily limit.
-
3
Pick a mindset and scroll
Focus, Calm or Learn. Change it any time; posts you’ve already seen re-sort instantly.
Privacy
Reads posts, not you
Sifty reads the public details of the posts in your feed and nothing else. It keeps no record of what you viewed.
Read the privacy policy- No analytics, trackers, ads or cookies.
- Never sends your Reddit username, messages or comments.
- Runs only on reddit.com, never on other sites.
- Classifications are stored by post, not by person, and deleted after 7 days.
- Your presets and settings stay in your browser.
Questions
Which Reddit does Sifty work on?
New Reddit, at www.reddit.com. Old Reddit (old.reddit.com) and comment threads aren’t filtered yet.
Why do I need to sign in?
Reading posts costs Sifty real money, so each account gets a daily limit. Signing in with Google is how Sifty keeps that fair. It only asks Google for your name, email and profile picture.
Is there a limit?
Each account can have up to 1,000 new posts a day read. Posts Sifty has already read for anyone are free and don’t count. If you reach the limit, new posts show unfiltered until it resets.
What happens to posts Sifty hides?
Depending on the mindset, they collapse into a one-line bar that says why, or they dim until you hover. You can open any of them, and you can switch to “Label only” to hide nothing at all.
What if Sifty gets a post wrong?
When Sifty isn’t sure, it leaves the post visible and marks the tag with a “?”. If it can’t read a post at all, the post stays visible with a “Sifty ⚠” tag.
