Sullivan & Cromwell unveils OpenAI-built Agreement Analyzer

Sullivan & Cromwell said it worked with OpenAI to develop Agreement Analyzer, an AI tool for identifying issues in a draft agreement, according to the firm’s Oct. 15, 2026 announcement. The disclosure adds another data point to the firm’s legal-technology work, while remaining distinct from its advisory role on AI transactions and regulation. The source material describes Agreement Analyzer as a custom tool created in collaboration with OpenAI to review draft agreements for issues. No technical specifications, performance metrics or deployment details were supplied in the source excerpt, so those elements cannot be verified here. The announcement follows a Sept. 18, 2026 firm update that also described a custom tool built with OpenAI, indicating that the firm has continued to develop internal workflow technology alongside its client-facing work.

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