What was the percentage of regular Generative AI users in Shikoku according to the 2026 Oceans Co., Ltd. survey?

The 2026 survey by Oceans Co., Ltd. found that 39.0% of workers in Shikoku regularly used Generative AI.

How many workers in Shikoku were surveyed by Oceans Co., Ltd. in the 2026 Generative AI study?

Oceans Co., Ltd. surveyed 228 workers across Shikoku in the 2026 Generative AI usage study.

What was the increase in regular Generative AI usage in Shikoku from the previous year to 2026 according to the Oceans Co., Ltd. survey?

Regular Generative AI usage in Shikoku rose from 21.2% to 39.0% between the prior year and the 2026 survey by Oceans Co., Ltd.

Which Generative AI tool remained the most used among Shikoku workers in the 2026 Oceans Co., Ltd. survey?

ChatGPT remained the most used Generative AI tool among Shikoku workers in the 2026 survey by Oceans Co., Ltd.

How did Gemini's usage change in Shikoku between the prior year and the 2026 Oceans Co., Ltd. survey?

Gemini's usage among Shikoku workers tripled between the prior year and the 2026 survey conducted by Oceans Co., Ltd.

[2026 Survey] Generative AI Regular Usage in Shikoku Quadruples to 39% in One Year

Published May 22, 2026 6:00 PM ・ Updated Jun 14, 2026 3:13 PM ・ 2 min read ・ Source: PR TIMES

A 2026 survey of 228 workers across Shikoku by Oceans Co., Ltd. reveals that regular Generative AI usage doubled from 21.2% to 39.0%. ChatGPT remains the most used tool, while Gemini tripled in usage. However, the survey also highlights a surge in security concerns and a lag in corporate policy development.

2026 Survey: Generative AI Adoption in Shikoku

Oceans Co., Ltd. (Matsuyama, Ehime; CEO: Shoichi Isozaki) has announced the results of its "Generative AI Business Usage Survey (2026 Edition)" conducted among 228 workers across four prefectures in Shikoku.

### Key Findings

1. **Doubling of Regular Users**: The proportion of regular users has grown from 21.2% to 39.0%. Non-users have decreased to 48.2%, signaling a transition from the early adoption phase to early majority.

2. **Tool Usage**: ChatGPT remains the top tool (32.9%). Notably, usage of Google Gemini has tripled from 6.5% to 15.4%.

3. **Surge in Security Concerns**: While "lack of knowledge" remains the top barrier (49.6%), concerns regarding security have surged from 16.8% to 27.6%, reflecting a shift from theoretical to practical risk.

4. **Governance Lag**: Only 10.5% of companies have fully established company-wide guidelines for Generative AI usage.

For the full report, please visit the company's official website: [https://oceans-web.co.jp/column/shikoku-generation-ai-2026/](https://oceans-web.co.jp/column/shikoku-generation-ai-2026/)

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Source: PR TIMES
Category: Survey
Products / services: ChatGPT / Google Gemini

[2026 Survey] Generative AI Regular Usage in Shikoku Quadruples to 39% in One Year

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2026 Survey: Generative AI Adoption in Shikoku

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