Anthropic cut off OpenAI’s ability to use its API for Anthropic models on Tuesday. The move followed Anthropic’s finding that ...

An OpenAI spokesperson said the API access allowed for industry-standard benchmarking and safety improvements.

OpenAI was connecting Claude to internal tools that allowed the company to compare Claude’s performance to its own models in ...

Anthropic launches learning modes for Claude AI that guide users through step-by-step reasoning instead of providing direct answers, intensifying competition with OpenAI and Google in the booming AI ...

Anthropic's Claude Sonnet 4 supports 1 million token context window, enables AI to process entire codebases and documents in ...

Anthropic has announced it will offer its Claude AI model to all three branches of the US government for $1, following OpenAI ...

Notably, Anthropic is also offering two different takes on the feature through Claude Code. First, there's an "Explanatory" ...

OpenAI lost access to the Claude API this week after Anthropic claimed the company was violating its terms of service.

The AI wars roll on — this time with Anthropic stepping right in behind OpenAI by offering its Claude chatbot to the federal ...

OpenAI’s new flagship AI model, GPT-5, crushes coding tests and complex logic, but lags behind rivals like Claude in creative ...

Anthropic’s escalation – a response to OpenAI’s attempt to undercut the competition – is a strategic play meant to broaden ...

OpenAI's o3 swept xAI's Grok 4 in the final of an AI chess tournament. Hosted by Google's Kaggle, the tournament pitted general-purpose AI models against each other. The win adds to the ongoing public ...