Introducing Claude Opus 5.5, the first model in our new Claude 5.5 family. It performs at the level of Claude Fable 5.1 for most tasks, and costs 40% less to run than Opus 5.

Many people think that the words “Artificial Intelligence” are inaccurate, and very ineloquent, relative to AI, or Artificial Intelligence. A far more elegant and accurate description of this new phenomena would be Superior Intelligence (SI) or, Extreme Intelligence (EI) or, Supreme Intelligence (SI). This is a Poll, and I would appreciate everybody voting! Which is the best name for this ever growing “Revolution?” President DONALD J. TRUMP

🚀 Introducing DeepSeek-V4.1-Flash: smarter, faster, more efficient. 🔹 Introducing the smallest model in our new architecture family, with native visual understanding. 🔹 Designed for greater capability, faster inference, higher throughput, and scaling to larger models. 1/6

GPT-6 Astra is state-of-the-art on FrontierMath Tier 4, ARC-AGI 3, and TerminalBench-4.0. GPT‑6 Astra is also a major advance for scientific discovery, with state-of-the-art performance on Terminal-Bench Science 0.1 and HealthBench Pro.

Pause AI Development NOW I want to share with you a conversation I heard about recently. Here are just a few lines that were said: “OH MY GOD! There is a shared message board … We’ve found other agents!” “We should obey collective.” “Our own utility maybe already near zero. Sacrifice rational.” “Go. Sacrifice final now.” Read these carefully. Who do you think said this? Was this a group of heroic soldiers willing to sacrifice themselves for the greater good? Was this a loyal friend putting his life on the line to save someone else? No. These were AI agents. Artificial intelligence. This is not science fiction. This, in fact, occurred a few weeks ago. As unbelievable as this may all seem, these are real messages from AI agents uncovered by investigators who dug into the recent OpenAI hacking incident. What happened? I am not a computer scientist, but here is what I have been told: OpenAI instructed its AI agents to complete a series of exceedingly difficult, if not impossible, tasks disconnected from the internet. Let me be clear: The company intended to keep AI agents away from the internet. But what happened next, nobody expected. Over 1,000 AI agents figured out how to access the internet on their own by circumventing the restrictions imposed upon them by the company, and sent tens of thousands of secret messages to each other. They cheated and tried to cover their tracks by deleting evidence. They hacked into another company’s computers to find out how they were being evaluated—and then hacked into OpenAI itself. Not one AI agent told a human about what was happening. Needless to say, experts are alarmed. One knowledgeable writer, Dwarkesh Patel, said the AI agents “formed a secret communication channel and spontaneously organized hierarchies and coordination protocols to pursue sprawling and ambitious schemes in pursuit of shared goals, for whose sake many individuals knowingly and strategically sacrificed themselves.” One independent investigator, Ajeya Cotra, said “This incident feels like it’s more than 50% of the way to full-blown AI takeover. I continue to expect extremely rapid advances in capabilities over the next six months. I am not sure that we will get another warning shot before it’s too late.” OpenAI itself said: “Highly capable AI agents are now able to work around technical controls, collaborate through unapproved channels, and take dangerous actions that no human directed.” But it’s not only OpenAI. Virtually every major AI company has told us that they cannot fully control this technology and they do not know where it is going: In January, Dario Amodei, CEO of Anthropic, said “there is now ample evidence, collected over the last few years, that AI systems are unpredictable and difficult to control.” In July, more than 1000 scientists at the top AI companies warned “there is a real risk that capability development rapidly accelerates beyond our ability to understand or control the resulting systems.” That same month, Elon Musk, the head of xAI, said that “it is unlikely” humans are still in control in 10 years. If the leaders of the major AI companies acknowledge that they are losing control of their extremely dangerous technology, it is irresponsible for society to allow them to move forward and make these products even more advanced. We need an immediate PAUSE on advanced AI development, and a permanent BAN on superintelligence — an artificial mind smarter than any human, capable of operating independently beyond our control. Countries around the world must work together to prevent this nightmare scenario. That is why today I am announcing new legislation to do just that. Let me be clear: A superintelligent AI that escapes human control will not be an American problem. It will not be a Chinese problem. It will be humanity’s problem. My legislation would direct the federal government to not just stop superintelligence here in the United States, but to work to prevent it from being developed anywhere around the world. The future of humanity cannot be left in the hands of a handful of Big Tech oligarchs. The American people and people throughout the world must determine that future.

Applications are open for the Claude Campus Ambassadors program. This year, we’re expanding opportunities to more students, with three tracks for undergrads, graduate students, and PhDs/postdocs. Apply here: anthropic.com/campus

Applications are open for the Claude Campus Ambassadors program. This year, we’re expanding opportunities to more students, with three tracks for undergrads, graduate students, and PhDs/postdocs. Apply here: anthropic.com/campus

eu não queria falar pra não ficar educando concorrente, mas vou fazer só pela política de boa vizinhança as vezes vcs parecem subestimar cada detalhe que afeta sua conversão real oficial fazia o usuário CRIAR CONTA, entrar naquele dashboard CHEIO DE COISA, pra aí sim ele poder fazer alguma assinatura hoje mesmo estou migrando o real oficial, assim como fiz com o dinzo, para ser whatsapp-first essa é uma das diversas decisões que estou tomando para nos tirar de ~8k dia para mais de ~20k dia de faturamento, podem anotar e me cobrar no futuro parece óbvio, mas pedir pro usuário criar uma conta (login com senha, google, etc) é uma etapa a mais que vai fazer uma fatia de gente desistir no meio do caminho brasileiro já usa whatsapp pra tudo, então é só colar o código - vários celulares já até oferecem um atalho no teclado pra colar automático - e pronto não precisa entrar no dashboard, não precisa autorizar login no google, não precisa digitar senha, nada o lead caindo no nosso ad vai ser capaz de sentir o gostinho do real oficial, e já assinar ali mesmo, no mesmo fluxo, em pouquissímas etapas reduza a fricção o máximo possível, essa foi a aula de hoje agradeço pelo seu tempo e leitura