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

Anthropic has revoked OpenAI’s access to its Claude family of models, according to a Wired report. OpenAI was connecting its ...

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

Anthropic, the company behind Claude AI, recently made a bold decision. The company has revoked OpenAI’s API access to its ...

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

Anthropic blocks OpenAI from using its Claude model, citing terms of service violations tied to GPT-5 development.

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

As reported by Wired, multiple sources claim that OpenAI has been cut off from Anthropic’s APIs. Allegedly, OpenAI was using ...

Anthropic has revoked OpenAI’s access to its Claude AI models, citing policy violations related to GPT-5 testing. Anthropic ...

OpenAI ChatGPT vs Anthropic Claude for Coding: I Tested Both on Real Projects with Surprising Results ...

Anthropic has revoked OpenAI’s access to its Claude AI models for violating its terms of service. Sources familiar with the ...