Disney is ditching Microsoft's GitHub Copilot and adding OpenAI's Codex

Disney is reportedly replacing Microsoft’s GitHub Copilot with OpenAI’s Codex for its U.S. engineering teams in August, while retaining Anthropic’s Claude Enterprise and Cursor. The move underscores shifting enterprise preferences in AI coding tools and suggests Copilot is losing ground to rivals in adoption and developer satisfaction. Disney employees said Copilot was rarely used and sometimes produced overly complex code, increasing cleanup work. For Microsoft, the loss is a notable setback for GitHub Copilot amid competitive pressure from OpenAI and Anthropic, while OpenAI gains a high-profile enterprise customer. The decision appears focused on productivity and velocity improvements rather than a broad AI pullback, as Disney continues to expand AI use internally.