How to block AI mentions on X.
Blocking @Grok doesn’t stop people tagging it. Here’s what actually works.
So you blocked @Grok, thinking you’d finally escaped its endless AI-generated garbage. Surprise: you didn’t.
Blocking doesn’t stop people from tagging @Grok or @AskPerplexity in replies, turning your threads into an AI-infested hellscape. For all of Elon’s grand ambitions, X is still crawling with bots, and now he’s stuffing his own AI into every corner of the platform. So much for free (human) speech.
That’s why we built GrokBlock, the extension that nukes AI mentions, tags, and spam while scrubbing your interface clean of Grok’s junk. Instant kill. No mercy.
Why Grok and other AIs are cluttering your timeline
Grok is Elon Musk’s own pet large language model, deeply integrated into X. It’s supposed to be helpful, funny and insightful, but let’s face it: it’s mostly annoying.
Every thread now has someone tagging Grok or Perplexity, summoning yet another lifeless response from one of these endlessly repetitive models. These aren’t human conversations. This is AI training happening live on your timeline, and you’re unwillingly part of it.
Tech companies seem obsessed with shoving their AI experiments into our daily lives. But we don’t have to put up with it.
Why X’s built-in tools fall short
Muting and blocking on X are half measures:
- Muting keywords still leaves those “this post is muted” markers cluttering your feed.
- Blocking @Grok or its taggers only hides direct replies, not mentions, so everyone asking “@Grok is this true???” still shows up unless you block each person manually, forever.
- Baked-in AI clutter can’t be stripped out. Translation buttons, sidebars: it’s all fused into the platform.
If you want a real solution, you need something ruthless.
GrokBlock: built to annihilate AI spam
GrokBlock does one thing and does it flawlessly: remove AI spam from your timeline.
- Instant AI vaporization. Hides replies and mentions from @Grok, @AskPerplexity and other bots in real time.
- Interface purification. Removes Grok translate buttons and sidebar clutter for a clean UI.
- Universal compatibility. Works on both x.com and twitter.com across all feeds.
- Zero tracking. No tracking, no conversation history logging, no third-party sharing.
- Lightning fast. Runs locally and won’t slow your browser down.
Take your timeline back
Your timeline should belong to humans, not serve as a playground for endless AI experiments. Install GrokBlock and join the 410+ humans who’ve already wiped their timelines clean of Grok, AskPerplexity and every other AI bot that doesn’t belong there.
Welcome back to a cleaner, more human X.
Questions.
What is GrokBlock?
A lightweight browser extension that removes Grok and Perplexity AI replies, mentions, and Grok UI clutter from X so your timeline stays human.
Why did you build GrokBlock?
Because X’s mute and block tools don’t stop AI tags or Grok’s UI from cluttering threads. People wanted a clean, human-first timeline without babysitting filters.
How does GrokBlock actually remove AI replies and mentions?
It scans the page for patterns like @Grok and @AskPerplexity and hides those replies and mentions from view. It doesn’t block accounts; it just removes the noise you don’t want to see.
Does GrokBlock mess with the rest of X’s UI or functionality?
Only the Grok-specific bits, like translate buttons and sidebar entries, and bot mentions. Regular posts, media, DMs, and core navigation remain untouched.
Does GrokBlock track me or send data anywhere?
No. It runs locally in your browser and doesn’t log, upload, or share your data.
What permissions does GrokBlock need?
Minimal site access for x.com and twitter.com to modify the page you’re viewing. No broad or cross-site data collection.
Will GrokBlock break my browser or slow pages down?
No. It’s designed to be extremely small and efficient, with work batched and debounced to avoid jank.
Which browsers does GrokBlock support?
Chrome and most Chromium-based browsers such as Brave, Arc and Edge, plus Firefox. Safari is not currently supported.
Does GrokBlock let me see AI content if I want to?
Yes. Disable the extension, or toggle any switch off, to see everything again.
Install for Firefox