Anthropic has cut off one of its biggest competitors, revoking OpenAI’s access to its Claude family of AI models.

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

Amodei’s impassioned defense was rooted in a personal revelation about his father's death, which he says fuels his urgent ...

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

"Claude Code has become the goto choice for coders everywhere, and so it was no surprise to learn OpenAI's own technical ...

Anthropic has terminated OpenAI's API access to its Claude AI models, alleging violations of terms of service. OpenAI ...

According to a report from Anthropic investor Menlo Ventures, the AI company is gaining ground on OpenAI among business ...

Anthropic has claimed that members of OpenAI’s technical staff interacted with Claude Code in ways that violated its terms of ...

Anthropic holds 32% of enterprise LLM market share by usage. This is a sharp reversal from just two years ago when OpenAI ...

On Friday, Anthropic debuted research unpacking how an AI system’s “personality” — as in, tone, responses, and overarching ...

This year’s torrid deal-making pace is definitely not taking a pause for summer. On Wednesday, I reported that OpenAI is ...

Anthropic is nearing a deal to raise as much as $5 billion in a new round of funding that would value the artificial ...