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Anthropic Revokes OpenAI's Access to Claude

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Anthropic has revoked OpenAI's API access to its Claude models, citing violations of terms of service. OpenAI reportedly used Claude for internal evaluations ahead of its GPT-5 launch.

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Anthropic Cuts Off OpenAI's Access to Claude Models

In a significant move, Anthropic has revoked OpenAI's API access to its Claude AI models, alleging that OpenAI violated its terms of service. According to reports, OpenAI utilized Claude to benchmark its own models, including the upcoming GPT-5, in areas like coding and safety. Anthropic's terms explicitly prohibit using their services to develop competing products. While OpenAI expressed disappointment, noting that its own API remains available to Anthropic, this incident underscores the competitive tensions in the AI industry. It also highlights the importance of adhering to service agreements, especially when leveraging third-party tools for internal development. Companies should be vigilant about compliance to avoid disruptions in their AI initiatives.

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