Constitutional AI framework. Instead of relying on hidden human feedback, Claude evaluates its own responses against a ...

Anthropic appears to be working on new models under the names Claude Sonnet 4 and Opus 4. These models are likely to be by ...

Anthropic’s attorney admitted to using an imagined source in an ongoing legal battle between the AI company and music ...

The AI chatbot was used to help draft a citation in an expert report for Anthropic's copyright lawsuit.

Anthropic is secretly working on two new models called Claude Sonnet 4 and Opus 4, which are believed to be the company's most advanced AI models.

Claude hallucinated the citation with “an inaccurate title and inaccurate authors,” Anthropic says in the filing, first ...

Anthropic on Thursday admitted that a faulty reference in a court paper was the result of its own AI assistant Claude and ...

Anthropic has responded to allegations that it used an AI-fabricated source in its legal battle against music publishers, ...

The flawed citations, or "hallucinations," appeared in an April 30, 2025 declaration [PDF] from Anthropic data scientist ...

Anthropic is on a hiring spree, but job applicants aren’t allowed to use AI in the process. It’s just one company among many ...

Claude 3.7 Sonnet is about to get a big thinking upgrade, as the AI will be able to go back to reasoning when the task ...

Anthropic has rolled out a new API for its line of chatbots, Claude, that now allows it to search the web for various sources ...