Holiday Extras is rethinking what it can build with Codex

Holiday Extras, a travel technology company led by CEO Matthew Pack, is transforming into an AI-based business by giving employees direct access to AI tools. After establishing company-wide ChatGPT Enterprise access, the company adopted Codex to extend AI into software development. A team rebuilt the main mobile app in just two weeks—a process that previously took over six months—resulting in a 32.5% increase in open-to-book conversion, a drop in error rate from 19% to 9%, and a shift from annual to weekly releases. The rebuild also enabled faster iteration on products like Countdown and allowed customer feedback to be acted on quickly. Beyond engineering, employees across functions are using AI to improve operations, with leadership providing guardrails and support. Holiday Extras values its partnership with OpenAI for Codex’s problem-solving capabilities and the quality of OpenAI’s models, and the company plans to expand AI administration across more systems, encouraging leadership to rethink the scale of its ambitions.

(Source：OpenAI)