Announced on Tuesday, ChatGPT 5.5 Instant is the brand's new default model, set to replace 5.3 Instant in the near future.

Marc Andreessen shared his ideal AI prompt calling for less constraints. Critics say today's models can't reliably follow ...

ChatGPT responded it sounded dangerous, the document states, and Abugharbieh then asked another question: “How would they ...

Muse Spark, Meta's first major new AI model in over a year, landed this week, the company's biggest effort yet to show value from its massive investment in Scale AI co-founder Alexandr Wang. Meta's ...

Threat actors are exploiting the recent Claude Code source code leak by using fake GitHub repositories to deliver Vidar information-stealing malware. Claude Code is a terminal-based AI agent from ...

Anthropic accidentally caused thousands of code repositories on GitHub to be taken down while trying to pull copies of its most popular product’s source code off the internet. On Tuesday, a software ...

WSJ’s Kate Clark demonstrates how Anthropic’s new Cowork tool can help non-coders automate their lives–or at least attempt to. Photo: Claire Hogan/WSJ Anthropic is racing to contain the fallout after ...

Anthropic PBC inadvertently released internal source code behind its popular artificial intelligence-powered Claude coding assistant, raising questions about the security of an AI model developer that ...

What we know so far: Anthropic is facing renewed scrutiny from the AI and security communities after internal source code for Claude Code – its fast-growing agentic development environment – was ...

Anthropic accidentally leaked some source code for Claude Code, its AI-powered coding assistant. The company said the leak did not include sensitive customer data or credentials. Anthropic recently ...

On Tuesday, a security researcher named Chaofan Shou revealed on X that he had found a 59.8MB JavaScript source map file in a public release of Anthropic's Claude Code. This file is intended for ...

The more than 512,000 lines of leaked code appear to show unreleased features, instructions for Claude, and more. The more than 512,000 lines of leaked code appear to show unreleased features, ...