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

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

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

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

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

Anthropic cut off OpenAI’s ability to use its API for Anthropic models on Tuesday. The move followed Anthropic’s finding that OpenAI had violated its terms by accessing Anthropic’s tools in prohibited ...

Anthropic has revoked OpenAI's access to its AI models for allegedly violating terms of service. This comes as OpenAI ...

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

Anthropic has cut off OpenAI's access to its Claude API, a move that comes after the former accused the latter of violating ...

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

Anthropic says it has revoked OpenAI's access to the Claude API after ChatGPT's engineers were found using Claude's coding ...

Behind Anthropic, you'll find OpenAI, which now has 25%; Google with 20%; and Meta Llama with 9%. All the way in the back, with a mere 1% you'll find DeepSeek, followed by the rest of the pack. Menlo ...