Credit Saison Achieves 954% ROI in a ChatGPT Enterprise Pilot
OpenAI, Thursday, October 29th, 2026
Japanese card issuer Credit Saison reports 954% ROI from a 315-person ChatGPT Enterprise pilot, then rolled it out companywide.
In this OpenAI customer story, Japanese credit card company Credit Saison describes a ChatGPT Enterprise pilot run with OpenAI in mid-2025 with 315 participants, including every executive.
The company reports 954% ROI and 14 hours saved per participant each month, well above its targets, and approved a companywide rollout within a month.
Employees use custom GPTs to summarize daily retail debriefs, research corporate customers and role-play sales calls by voice, while engineers report saving 850 hours a month with Codex.
Credit Saison credits leaders using AI themselves and is now building an in-house AI call center.