How to Block AI-Generated Shorts on YouTube (2026)

If your Shorts feed has turned into an autoplay loop of AI-narrated "facts," synthetic history slideshows, and uncanny animal videos, you're not imagining it. This guide covers every practical way to block AI Shorts in 2026 — YouTube's built-in controls, free browser extensions, and where each one falls short — so you can hide YouTube Shorts AI content without nuking the platform entirely.

Why Shorts Is the Slop Epicenter

Short-form video is where AI-generated content concentrates, because it's cheap to mass-produce and the algorithm rewards volume. A late-2025 study of recommendations served to new YouTube accounts found that roughly 21% were AI-generated slop, with another ~33% qualifying as low-effort "brainrot" content. That's over half of a fresh feed.

YouTube knows it has a problem: CEO Neal Mohan named managing AI slop and detecting deepfakes a priority for 2026. Viewers have noticed too — consumer enthusiasm for AI-generated creator content fell from 60% in 2023 to 26% in 2025. For more numbers, see AI slop by the numbers.

The catch: while YouTube works on platform-level fixes, your feed is your problem today.

Option 1: YouTube's Native Controls (Free, but Leaky)

Worth doing first, even though none of it is permanent:

• "Not interested" and "Don't recommend channel." Tap the three-dot menu on any Short. This trains the recommender, but you're playing whack-a-mole — slop channels are cheap to spin up, so blocking one rarely stops the next.
• Hide the Shorts shelf. On desktop, click the X on the Shorts shelf on your home page. The shelf hides only temporarily — it eventually returns, and you'll need to dismiss it again.
• Mind your watch history. The recommender feeds on it. Watching even a few seconds of an AI Short tells YouTube you want more; pausing or pruning your watch history (Settings → Your data in YouTube) resets some of that signal, at the cost of less personalized recommendations overall.

Native controls reduce the volume. They don't let you specifically target AI content — for that you need an extension.

Option 2: Free Extensions That Filter AI Content on YouTube

Three free tools cover Shorts-adjacent filtering, each with a different philosophy:

• Clarity — Hide AI Videos on YouTube (free, ~1,000 users, 4.6 from 9 ratings) covers YouTube home, Shorts, and recommendations with local detection plus an optional community blocklist. Stay with Clarity if you only use YouTube and want $0 with a community blocklist option.
• ByeAI (free, ~956 users, 3.7 from 3 ratings) uses crowd-voted flagging — no account needed — covering AI voice, thumbnail, script, deepfake, and music flags. Stay with ByeAI if you want crowd-sourced flagging across many AI signal types on YouTube at $0.
• AI Slop Blocker (free, ~429 users, 4.6 from 5 ratings) blocks only videos that self-disclose as AI — deliberately conservative, with low false positives — and also hides Google AI Overviews. Stay with AI Slop Blocker if you want a cautious disclosure-only filter at $0.

We compare all of these in detail in our 2026 AI content blocker comparison.

Option 3: How Unslop Handles Shorts

Unslop filters YouTube's home feed, search results, sidebar, and Shorts shelves (plus the Facebook main feed). For Shorts specifically:

• A "Filter Shorts too" toggle applies your filters to Shorts shelves, not just regular videos.
• Detection runs on visible text, hashtags, your custom keywords, and YouTube's own "Altered or synthetic content" disclosure label — with whole-word matching, so "Dubai" doesn't trip an "AI" filter (16 passing tests cover those false-positive cases).
• Remove or blur. Remove deletes matches outright; blur leaves a click-to-reveal placeholder so you can spot-check.
• A creator whitelist keeps channels you trust visible regardless of keywords, and a live counter shows total/today blocks.

Everything runs 100% locally — no account, no server, no telemetry, just the storage permission. The core is free with 20 custom keywords; a one-time $5 Pro unlock (pay-what-you-want, $3 floor — not a subscription) adds unlimited keywords, import/export, and advanced blur.

The honest limits: Unslop reads text and disclosure labels — it does not analyze pixels or audio. An undisclosed AI Short with a clean title will slip through. There's no AI-voice acoustic detection. And like every extension here, it's desktop-only (Chrome, Edge, Brave, Opera, Arc — no Firefox, no mobile browsers), so the YouTube phone app is out of reach.

Quick Start: Block AI Shorts in 3 Steps

1. Dismiss the Shorts shelf on your YouTube home page and hit "Not interested" on a few slop Shorts to retrain the algorithm.
2. Install a filter extension — Unslop or one of the free tools above — and enable Shorts filtering.
3. Add custom keywords for the slop genres you see most ("AI generated", "Sora", specific hashtags), and whitelist creators you actually want.

The Bottom Line

There's no single switch to stop AI brainrot Shorts — YouTube's controls fade, and text-based filters can't catch undisclosed AI. But native controls plus a disclosure-and-keyword filter removes the labeled and obviously titled majority, which changes the feel of the feed considerably. For the broader picture beyond Shorts, see our full guide to blocking AI videos on YouTube — and if the real goal is watching less short-form video altogether, that's a different (worthwhile) project: reclaiming your feed.