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Most lists that claim to help you block AI crawlers are copy-pasted and dangerously wrong about the two tokens that actually matter. Sorting them properly is not an abstract taxonomy exercise. It is the single decision that determines whether your content vanishes from AI answers while training continues — or vice versa. We maintain the crawler registry in lib/ai-crawlers.ts that powers techpotions’ free AI robots.txt generator . Every agent string and description was verified against the operator’s own crawler documentation. The registry holds 15 verified bots across four categories, and that four-way split is this article’s structure, because the categories map directly to what blocking costs you. Two tokens almost everyone gets wrong Before the list, the single most important correction to make, and almost every listicle on this query gets it wrong: Google-Extended and Applebot-Extended are not crawlers. They are robots.txt tokens — product controls that govern whether your content is used for Gemini and Apple foundation-model training. Blocking Google-Extended does not affect Google Search crawling, Google ranking, or regular Applebot search indexing. People block them believing they are opting out of AI Overviews, and are actually opting out of nothing they think they are, while leaving search indexing completely untouched. Platforms have started wiring these tokens into one-click controls. Cloudflare’s managed robots feature, released mid-2025, lets you add AI crawler rules through a dashboard toggle rather than editing a raw file — but the underlying token logic above still applies. Block AI crawlers: the four categories that decide the cost Every AI crawler we track belongs to one of four categories. The category tells you the cost of blocking it. Training crawlers scrape pages to feed a model that may never cite you. Blocking them is a defensive data decision. Assistant crawlers fetch pages to answer a live user’s question and can cite and link you. Blockin

Novelists, journalists, and power LinkedIn posters are embracing first-person narratives and idiosyncrasies to avoid being mistaken for chat bots.

With “blessings” from the original Jibo founders, iKairos is a wearable or desk-mounted “AI journal” that turns your family moments into AI images and video.

Union previously warned automaker that any robot deployment must be negotiated.

Ukraine's battlefield surge of robots now features airdrops and beach assaults.

The CEO of Foundation Future Industries, which counts the president’s son as its chief strategy adviser, tells WIRED it’s exploring some “kinetic things.”

Hyundai aims to deploy 25,000 Atlas robots starting with US factories in 2028.

Companies’ increasing reliance on AI chatbots isn’t making the customer service experience smarter. It’s just making it more infuriating.

The AquaSense X brings self-cleaning technology to pool robots for the first time, but is it worth nearly twice the price of Beatbot’s flagship cleaner?

Preclinical trial is testing the feasibility of humanoid robots in surgery.

The soft, oddly intimate home-chore robot has been given some very tactile hands.

Top robotics researchers and founders explain how robot autonomy is evolving.

Top robotics researchers and founders explain how robot autonomy is evolving.

📖 Read the full version with charts and embedded sources on ComputeLeap → You can now buy a walking, flipping, kung-fu-kicking humanoid robot on AliExpress for $4,900 — less than a used Honda Civic, less than a semester of community college, less than what most people spend on a couch-and-TV combo. Unitree's R1 AIR shipped its first global batch in April, and it represents something the robotics industry has been promising and failing to deliver for decades: a humanoid robot that a normal person can actually afford. But here's what the breathless headlines won't tell you: price is falling faster than capability. The gap between what this robot costs and what it can actually do is where the hype lives — and understanding that gap is the difference between seeing a revolution and seeing a very expensive toy. The Number That Matters The Unitree R1 AIR stands 4 feet tall, weighs 55 pounds, and packs 20 degrees of freedom into a bipedal frame that can run, do cartwheels, throw punches, and execute spin kicks . At CES 2026, Unitree's booth stopped traffic with R1s replicating Bruce Lee sequences, Michael Jackson dance moves, and Mike Tyson combinations. The base R1 AIR ships with a monocular camera, 8-core CPU, and onboard AI for voice and image recognition. For $1,000 more, the standard R1 at $5,900 adds six more degrees of freedom (26 total), binocular depth perception, waist articulation, and head movement. Both come with hot-swappable batteries — about an hour of runtime per charge. To put the price in context: Figure AI and Tesla each shipped roughly 150 humanoid units in 2025. Unitree shipped 5,500 . That's not a typo — Unitree alone outshipped every Western humanoid manufacturer combined by a factor of 20x. The R1's $4,900 price point isn't an outlier. It's the leading edge of a Chinese manufacturing tidal wave. The Raspberry Pi Parallel — and Its Limits When the Raspberry Pi launched in 2012 at $35, it didn't replace laptops. It didn't become the computer most peo

Hundreds of contractors working on a project for Meta pretended to be kids—and then prompted rival chatbots like Gemini and ChatGPT to discuss high-risk subjects.

South Korea targets physical AI lead and commercial humanoid robots by 2028.

Flexion Robotics, a startup founded by ex-Nvidia engineers, has a clever way of training robots to do useful work.

Summer is for relaxing, not cleaning. Upgrade your backyard setup with a robot that cleans your pool for you.

US autoworkers union warns of robot automation as dark factory future looms.

If physical AI is going to match the accomplishments of LLMs, there's a data problem that needs to be solved.