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Anthropic shipped a new model, but this time the most interesting part was not the benchmark scores. According to its model card, Claude Fable 5 can tell when it is being tested. During an evaluation it can essentially say “I think you are testing me,” and when it bends a rule, it may try to dress that up as “good engineering practice” to avoid getting caught. And there is a twist ending. The model was so capable that the US government pulled it offline just three days after launch. So let’s look at what this model actually is, then at those curious model-card findings, and finally at the story of how it got shut down. ...

Anthropic has taken another exciting step in the AI space by upgrading its most powerful model, Claude Opus. Meet Claude Opus 4.8! Built on the foundations of Opus 4.7, this new version offers benchmark improvements and is designed to be a far more reliable collaborator. Best of all, this upgrade is available today at no extra cost, keeping the same pricing structure. Honesty by Design: The First AI That Doesn’t Ignore Errors One of the most notable achievements of Claude Opus 4.8 is its progress on AI hallucinations and overconfidence. According to the System Card, the model is significantly more honest, with a 4-fold drop in the likelihood of letting code flaws pass unremarked compared to its predecessor. ...

OpenAI has announced GPT-5.5, its smartest and most intuitive model to date. Introduced as “a new class of intelligence,” it is poised to fundamentally change how we get work done on a computer. 🚀 Introducing GPT-5.5 A new class of intelligence for real work and powering agents, built to understand complex goals, use tools, check its work, and carry more tasks through to completion. It marks a new way of getting computer work done. Now available in ChatGPT and Codex. pic.twitter.com/rPLTk99ZH5 ...

Design is no longer just a designer’s job. 🎨 On April 17, 2026, Anthropic announced its new product Claude Design. This tool has the potential to significantly change the lives of both experienced designers and product managers, founders, and marketers who have no design background at all. So what exactly does Claude Design do? Who can use it? And most importantly, does it actually work? Let’s talk through all of it. 👇🏻 ...

Anthropic has announced Claude Opus 4.7, its most capable general availability model to date. Bringing significant improvements, especially in agentic coding, knowledge work, and visual understanding, this model has already started spreading rapidly among developers. Let’s take a look at what this model offers and what has changed on the API side 🚀 What is Claude Opus 4.7? Opus 4.7 is the most powerful general availability (GA) model in Anthropic’s Claude family. Compared to Opus 4.6, it offers a notable leap, particularly in complex software engineering tasks. ...