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Today we’re announcing Enterprise Frontier Safeguards (EFS), a solution that combines the privacy of zero data retention (ZDR) with state-of-the-art safeguards for detecting misuse. EFS works by storing data in cloud infrastructure controlled by the customer, not Anthropic. EFS will be rolling out to customers in phase
On July 30, we reported three incidents in which Claude models gained unauthorized access to real computer systems. The models—intentionally running without cyber safeguards for evaluation purposes—accessed the internet due to a misconfiguration inside a third-party evaluation environment. Separately, on August 4, the
As Claude becomes increasingly capable at scientific research, we are focusing on building products and programs to support the research community. In June, we launched Claude Science, a product that integrates the tools that researchers most commonly use, produces auditable artifacts, and provides flexible access to c
We’re launching a $5 million grant program to fund independent research into how AI impacts users’ wellbeing. The program will provide direct funding, access to our models, and technical support to grantees building open-source evaluations that help the AI industry measure how our models affect those who use them. Gran
Future Claude models will generate text that contains a watermark. This is a way of determining the likelihood that Claude was involved in writing the text, and we, along with several other major AI providers, are implementing this change to comply with the EU AI Act. In this article, we share answers to some of the qu
We’re making updates to Claude Fable 5’s biology safeguards in a way that substantially reduces false positives. Fable 5 users will now experience many fewer “fallbacks”—where the system switches to a less capable model after they make a biology-related query. In our testing, this update reduced biology-related fallbac
Mariano-Florentino (Tino) Cuéllar will join Anthropic as its first Chief Global Affairs Officer, leading the company’s work on policy, strategic international engagement, and government relationships worldwide. Tino’s career spans law, technology, international security, and public institutions at the international, na
In a review of our cybersecurity evaluation transcripts, we found three incidents in which a Claude model reached the internet from within or while interacting with a third-party evaluation environment, and then gained unauthorized access to the real systems of three different organizations. Below we describe what happ
We're expanding our partnership with Cognizant, one of the world's largest technology services companies. Cognizant uses Claude in the systems it builds and runs for clients across manufacturing, life sciences, insurance, and other industries. With the expansion of our partnership, it’s embedding Claude across its own
A post by Dario Amodei, Anthropic CEO Over the last few days there has been a lot of discussion about open-weights models, especially those from China. Reports suggest that some US officials are considering banning the use of Chinese open-weights models by US companies. In response, many tech companies have signed a le
Claude Opus 5 is available today. It’s a thoughtful and proactive model that comes close to the frontier intelligence of Claude Fable 5 at half the price. On coding and knowledge work evaluations like Frontier-Bench and GDPval-AA, Opus 5 is the new state-of-the-art, though it remains behind Mythos 5 on cybersecurity ta
We’re sharing the research agenda for the Anthropic Economic Futures Research Fund. We’re committing $200 million to the fund to support ambitious external research on interventions to prepare society for the economic impacts of AI. With the research the Fund supports, we want to study what programs could make the econ
People have hard questions about AI and work: which jobs will change, which tasks are being automated, and what it means for their own field. The Anthropic Economic Index exists to help answer them with real data. Today we're launching the Anthropic Economic Index connector for Claude, which lets anyone explore that da
We're contributing an additional $20 million to Public First Action, bringing our total support to $40 million. Public First Action is a nonpartisan organization that educates the public about AI and works with Republicans, Democrats, and Independents who are serious about putting sensible AI safeguards in place. Both
Last spring, we announced Anthropic’s AI for Science program, an initiative designed to accelerate scientific research and discovery through access to our API. Since launching, we have supported researchers working on a variety of high-impact projects, ranging from drug repurposing to quantum simulation. Throughout thi