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Research

OpenAI and Anthropic Abandon Cross-Testing Deal

The AI Daily Brief·September 22, 2026·high confidence

Why it matters

  • →Reduces opportunities for independent safety validation between top labs.
  • →Highlights growing competitive friction between OpenAI and Anthropic.
  • →May lead to less standardized safety benchmarks across the industry.
OpenAI and Anthropic Abandon Cross-Testing Deal
©The AI Daily Brief

OpenAI and Anthropic have called off a deal that would have involved cross-testing their respective AI models. The abandonment of this agreement removes a potential avenue for independent verification of safety claims between two industry leaders. This development suggests increasing competitive tension or diverging priorities regarding transparency and safety protocols in the top tier of AI research.

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