Credit Saison achieves 954% ROI in a ChatGPT Enterprise pilot

Credit Saison, a Japanese credit card company with about 31.16 million cardholders, ran a ChatGPT Enterprise pilot from late June to early August 2025 with 315 participants, just under 10% of its approximately 3,700 employees in Japan. The pilot reported a 954% ROI and 14 hours saved per employee per month (about 169 hours annually), far exceeding targets of 500% ROI and 7.5 hours saved. In a post-pilot survey, 75% of managers and 70% of nonmanagerial employees said they could not do without ChatGPT Enterprise; about 80% of legal department respondents reported improved job ability, and over 80% in IT reported greater job satisfaction. Adoption was driven by open sharing through a dedicated Slack channel, executive training, beginner workshops, and leadership modeling—including a custom GPT simulating shareholder meetings and the COO creating his own GPT for company research. Employees applied ChatGPT to retail sales debriefs, corporate sales research, and inside sales roleplay. Credit Saison approved a companywide rollout within one month of the pilot's end and now pursues "Employee AX," "Customer AX," and "Corporate AX," with Codex saving an average of 850 hours monthly in engineering and an in-house AI call center under development.

(Source：OpenAI)