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OpenAI's textGrain Will Put an Invisible Watermark on ChatGPT Text in the EU

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ChatGPT in the EU is about to carry an invisible watermark. On October 5, OpenAI announced textGrain, a system that embeds a hidden statistical signature into ChatGPT and Codex text for users in the European Union — rolling out over the coming weeks. The reason is regulation: the EU AI Act's transparency rules (Article 50(2), in force since August 2) require AI-generated content to be identifiable in a machine-readable way. OpenAI is the latest to comply — Anthropic shipped its own text watermarking in August, and Google DeepMind has had one for years. How it works textGrain subtly nudges the model's word choices against a secret key, weaving a statistical pattern into the text itself. There's nothing visible — no hidden characters, no odd spacing, no metadata trickery. A detector can then test a passage for that pattern. Because the signal lives in the words, it survives copy-paste, and OpenAI says it doesn't change answer quality or readability in any meaningful way. ...
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Manus Just Raised $500M+ — The AI Startup Meta Couldn't Buy

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Manus $500M funding illustration — an AI robot breaking free from corporate chains


Manus $500M funding illustrationMeta's $2 billion bid for one of AI's hottest agent startups is officially ancient history. Butterfly Effect, the parent company of AI agent startup Manus, announced Thursday it has closed a funding round of more than $500 million — its first as an independent company since Beijing forced Meta to unwind its acquisition.


The deal


The round was co-led by Boyu Capital and IDG Capital, with existing investors Tencent, HSG (formerly Sequoia China) and ZhenFund also participating. Manus did not disclose its valuation, but media reports have pegged the round at around $4 billion — roughly double the $2 billion price tag Meta agreed to last December. The company has also reportedly considered a Hong Kong listing, though that would not begin before 2027.


The Meta saga


Manus went viral in 2025 after a demo of its general-purpose AI agent, relocated its staff to Singapore mid-2025, and announced the Meta acquisition that December — one of Meta's biggest deals ever. In April 2026, Beijing ordered Meta to unwind the acquisition amid tightening scrutiny of US investment in Chinese startups developing advanced AI. Manus resumed independent operations in August 2026, and said it had to delete some user data as part of the split.


What Manus makes


Manus builds general-purpose AI agents that can carry out multistep tasks — research, information gathering, document preparation, automation — with minimal human input. It also offers a chatbot and vibe-coding tools for building apps, websites, designs and presentations. The company recently launched Manus 2.0, running on its Cascade execution system, and a standalone personal AI agent app called Cue.


Why it matters


The Information reported in June that Manus's annualized revenue run rate had surged to about $500 million, up from $100 million when Meta struck the deal. The raise is one of the clearest signals yet that investors are willing to place enormous bets on independent AI agent companies — even as OpenAI, Google, Meta and Microsoft race to bake agents into their own platforms.


AiPost's take


Beijing killing the Meta deal may have been the best thing that happened to Manus. It is now worth roughly twice what Meta agreed to pay, its revenue has multiplied, and the agent wars are only heating up. Independent AI labs with real revenue and real users are having their moment.            



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