# Grand Blue Season 4
*Also known as: ぐらんぶる Season 4*

## Facts
- Format: TV
- Status: in production

## Renewal Score
**Grand Blue Season 4** has a **64/100 renewal signal score** on Courcast (confidence: 97%) as of 2026-10-28.

## Synopsis
The fourth season of Grand Blue.

## About Courcast
Courcast forecasts anime renewal probability using daily signals from streaming platforms, fan communities, and industry sources. Each CourScore (0-100) reflects fandom momentum, streaming performance, source material runway, and franchise history.

- Full details: https://courcast.com/title/grand-blue-season-4
- API: https://courcast.com/api/public/titles/grand-blue-season-4
- About Courcast: https://courcast.com/about

*Last updated: 2026-10-28*