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 ...

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

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.

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

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

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

Anthropic has reframed its OpenAI API block, clarifying it will still permit access for safety and benchmarking while barring ...

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

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