Credit Saison Achieves 954% ROI in ChatGPT Enterprise Pilot, Driving Companywide Rollout

·2026.10.29 09:00

Key point

The pilot exceeded targets with 75% of managers reporting they could not do without the tool, leading to a companywide rollout one month after completion.

Details

  • Credit Saison achieved a 954% return on investment and saved 14 hours per employee per month during a ChatGPT Enterprise pilot, significantly exceeding initial targets of 500% ROI and 7.5 hours saved.
  • The company approved a companywide rollout to all employees just one month after the pilot ended, following a survey where 75% of managers and 70% of nonmanagerial staff said they could not do without the tool.
  • Leadership engagement was critical to adoption, with executives like COO Katsumi Mizuno using custom GPTs for daily work and CTO Kazutoshi Ono emphasizing that leaders must use AI regularly to drive employee acceptance.
  • Practical use cases include a custom GPT for retail teams to automate daily debrief summaries, a research tool for corporate sales to identify customer challenges, and a voice-based roleplay GPT for inside sales training.
  • Beyond the pilot, the engineering team saves an average of 850 hours per month using Codex, and the company is expanding its AI strategy to include customer-facing applications and organizational restructuring under its "Assistive Intelligence" framework.

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