Anthropic cuts Claude’s access to Openai. He has done it before the launch of GPT-5

The AI race is very intense lately. The last episode is stars in Anthropic, who have cut access to Openai so that they cannot access their family of models Claude. The company claims to have caught the engineers of Chatgpt wearing Claude programming toolswhich has not fallen very well. This, According to a spokesman From the company to the medium Wired, it is “a violation of its terms of service”, so they have restricted access to the API.

What has happened exactly. Openai connected Claude to his internal tools through his API, instead of the conventional chat interface. This allowed the company to carry out comparative evidence between Claude and its own models in areas such as programming, creative writing and security -related responses. The results helped Openai evaluate the behavior of their models and make necessary adjustments.

An endless war. This decision goes beyond a simple contractual dispute: marks a turning point in the relationship between two of the main powers of the generative AI. Anthropic was born in 2021 precisely from an Openai split, when several key researchers, including the brothers Dario and Daniela Amodei, left Altman’s company due to differences on the direction and safety of AI. Since then, The tension has been palpablealthough it had remained in the background.

The justification of Anthropic. “Claude Code It has become the preferred option of programmers everywhere, so we were not surprised to know that Openai’s technical staff were also using our programming tools before the launch of GPT-5“said Christopher Nulty, spokesman for Anthropic. The company considers that this constitutes a direct violation of its commercial terms, which expressly prohibit using the service to” build a competitive product or service “or” make reverse engineering. “

Openai’s response. Sam Altman’s company He has defended its practices as “standard in the industry” to evaluate other AI systems and improve security. “Although we respect Anthropic’s decision to cut our access to the API, it is disappointing considering that our API is still available for them,” said Hannah Wong, director of communications of OpenAI.

Between the lines. What we see now is the materialization of a cold war that has been being taken for years. Anthropic has positioned Claude as the “safer and more ethical” alternative against Chatgpt, while Openai has maintained his leadership for mass adoption and general abilities. This rivalry is not only business: it is also philosophical, with very different approaches on how to develop and market the AI. In addition, the blockade of the API is not an isolated case in the technological sector. As They mention In Wired, Facebook also blocked Vine In his day and Salesforce He recently limited access to competitors. What is clear is that this reflects how competition in AI is becoming more aggressive and territorial.

Important nuances. Despite the blockade, Anthropic has clarified that will maintain OpenAi access “for benchmarking purposes and security evaluations”, a practice considered standard in the industry. However, the company has not specified how this current restriction will affect these activities.

And now what. This climb arrives at the worst possible time for OpenAi, especially considering that we would be officially knowing GPT-5, which promises significant programming improvements. Therefore, everything indicates that Anthropic is willing to use all the tools at their disposal to stop the advance of its competitors. The worrying thing is that this could only be the beginning of a more open war between the Big Tech and the use of AI.

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