AI slop now has receipts.

AI slop now has receipts. JUST IN: Claude models will now have invisible watermarks embedded in ALL text, and ALL metadata attached to files... How Claude marks AI-generated content Updated today Anthropic has signed the EU AI Act's Article 50(2) Code of Practice on Transparency of AI-Generated Content, as a provider of both generative AI models and generative AI systems. This article describes how we're planning to put these restrictions into practice, how marking works, and what its implications are. We'll update this article and publish more detailed technical guidance as it becomes available. Anthropic says new Claude models will embed invisible watermarks in all generated text, everywhere Claude is offered. The watermark is part of the text, it isn't metadata: "it will travel with the text when it's copied and pasted elsewhere, and may persist through some editing." This starts with models launched on or after August 2, 2026, under an EU AI Act code Anthropic signed. Anthropic is still working on adding it to current models. The rollout is worldwide. How it feels to steal content from the internet and put your own watermark on it Claude models launched in the EU on or after August 2, 2026 will embed machine-readable marks in generated text. For supported models, this applies worldwide across Claude, the API, Claude Code, Cowork, Tag and cloud partners. Generated files such as PNGs, JPGs and SVGs will also receive signed C2PA provenance metadata where supported. The text watermark travels with copied content and may survive some editing. Heavy edits, paraphrasing or translation can make it undetectable; short passages may not contain a reliable signal at all. 1. Embedded watermarks in text When a supported Claude model generates text, it weaves an imperceptible watermark directly into the text itself. You won't see it, and it doesn't change the meaning, quality, or readability of directly into the text itself at the moment of generation now every new Claude model is going to have this Models. Claude models launched on or after August 2, 2026 support marking at launch. We're also working to add marking support to Claude models released before that date, and we'll we're working on a rollout for existing models and it's going to occur at every single instance of Claude Products. Claude markings cover output from supported models everywhere you use Claude, including Claude Platform (API), Claude, Claude Code, Claude Cowork, and Claude Tag. that means the API that means Claude code that means the Claude app that means the Claude web app you will not be able to escape this and why is Anthropic doing this because of a new EU transparency rule that every other large model company has signed Several well-established and prominent AI companies have committed to adhering to the code. Examples for Section 1 include: Aleph Alpha, Anthropic, Black Forest Labs, Cohere, Google, Meta, Microsoft, Mistral, Open AI Google Meta OpenAI other than one which is Xai Elon's fighting the good fight against the Europeans but this is causing a mass panic The time to move away from those "frontier" models is approaching a lot faster than I expected. what an atrocity. Ridiculous, another reason not to use them people are freaking out as they're starting to realize the work they've been passing off as their own is going to be exposed as ClaudeSlop of course the watermark will not be 100% bulletproof. 3. In my testing, the watermarks don't survive intense paraphrasing (especially if you combine word choice and syntax attacks), or human text substitution (rewrite your AI text by plagiarizing human authors). The free paraphrasers I've tried have quickly bypassed Google Deepmind's SynthId for what it's worth. I'm sure if you heavily edit the text it will no longer be detectable as Claude people are not gonna stop using Claude but the question is how far will they have to go in terms of the heavy editing to pass the detection filters Startup idea: Rephrase output to preserve the meaning while obliterating the watermarks. This might not become that big in itself, but it could make a great beachhead. Anthropic says new Claude models will embed invisible watermarks in all generated text, everywhere Claude is offered. follow for more tech and business updates