Anthropic has revoked OpenAI’s access to the Claude API after learning that it was being misused in a way that violated its terms of service.
The battle between companies focusing on AI endeavors is heating up and OpenAI has found itself in rather unfavorable positions in recent times. First, many of its employees were poached by Meta, despite efforts to deter staff from accepting Mark Zuckerberg’s « ridiculous » offers. Now, it has been banned from using Anthropic’s Claude following a violation of the terms of service (ToS).
Multiple sources confirmed to Wired that Anthropic had cut off OpenAI’s access to the Claude API due to an apparent violation of ToS. An Anthropic spokesperson confirmed to the outlet that the banhammer struck earlier this week after Anthropic discovered that OpenAI’s technical staff were using Claude in their development of GPT-5.
