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

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

Anthropic has officially stopped OpenAI from using its Claude models. This decision came after reports revealed that OpenAI ...

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

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

Anthropic, the company behind Claude AI, recently made a bold decision. The company has revoked OpenAI’s API access to its models, accusing the company of violating its terms of service.

Anthropic’s billionaire boss Dario Amodei isn’t willing to fight fire with fire by raising his own staffers’ salaries to ...

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

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

In the paper, Anthropic explained that it can steer these vectors by instructing models to act in certain ways -- for example ...

Anthropic found that pushing AI to "evil" traits during training can help prevent bad behavior later — like giving it a ...