A companion, not a replacement
Grand Summoners has a lot going on — hundreds of units, thousands of equips, complex buff and debuff interactions, and a meta that shifts with every new banner. GS Companion exists to make that easier to navigate.
The goal has always been the same: give players a single place to look things up, plan their teams, and understand what's actually happening in their party. No login required, no ads, just the tools.
Team Builder
Build teams and see every buff, debuff, and arts gen interaction laid out clearly.
Unit Compendium
Browse 400+ unit kits with tier ratings, element info, and full ability breakdowns.
Equip Finder
Filter thousands of equips by tags, stats, and effects to find the right gear.
Quick Team
Get instant team suggestions based on your roster and the content you're running.
DMG Calculator
Estimate damage output with full buff, debuff, crit, and element accounting.
Stage Guide
Enemy breakdowns, resist info, and recommended strategies for key content.
Started as a personal project
GS Companion started out as a spreadsheet — a way to keep track of unit kits and work out team synergies without having to dig through the wiki every time. It grew from there.
The site is built and maintained by a single player. Data is sourced directly from the game's own files and community resources, and is kept up to date as new units and content are added. Everything is free to use, and always will be.
Fan-made, not affiliated
GS Companion is an unofficial fan tool and is not affiliated with, endorsed by, or connected to Good Smile Company, Akatsuki Inc., or any official Grand Summoners entity.
Grand Summoners and all related names, characters, and assets are the property of their respective owners. All game data presented here is sourced for informational purposes only.
For questions or data corrections, reach out via the Grand Summoners community on Discord.