OpenAI's own finance team has rebuilt core operations around its AI stack. Business Finance Officer Stacie Faggioli details how ChatGPT, the ChatGPT Excel plugin, Codex, and custom agents are now embedded in day-to-day financial workflows, not as experiments but as production tools handling real analysis and reporting.
The specific combination matters. Codex handles code generation for financial models, custom agents automate multi-step processes that previously required analyst time, and the Excel integration closes the gap between natural language queries and spreadsheet execution. This is a case study in vertical integration: the company building the tools is also the most aggressive internal adopter.
The full video is worth watching for the operational specifics Faggioli provides, including which tasks were automated first, where human review still sits in the loop, and how the finance org measured time saved. The architecture of their agent deployments is the detail most readers will want.
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