Little Whale AI
Little Whale AI brings a configurable AI chatbot into the server chat, where players talk to it and it replies in the same language they used.
What it does
A player sends a message to the AI with the chat prefix, and the reply comes back in one of three chat modes. Private mode sends the answer only to the player who asked. Public mode shows it to everyone, and mixed mode lets a server owner choose between the two. The mode can be switched while the server runs.
The bot is aware of who is talking to it. It sees the sender's name through a player-name field in each message, addresses people by name in a natural way, and answers in whatever language the player wrote in, such as Chinese or English. Replies are kept as plain text so they read cleanly in the game chat.
The mod is for Fabric only, runs on the server side, and is licensed under the MIT License, though it is not open source. Files are published for 1.21.8 only, with 1.0.0 as the current build dated 2026-04-26. Players join without installing anything, since only the server needs it.
Key features
Three chat modes
Private, public and mixed modes decide whether an AI reply goes to the asking player alone or to the whole server.
Player-aware replies
Each message carries the sender's name, so the AI can address people by name and keep track of who is speaking.
Automatic language matching
The AI answers in the language the player wrote in, without a setting to change it.
Plain text output
The AI is instructed not to use Markdown or code blocks, so replies stay readable in standard in-game chat.
Non-blocking requests
Calls to the AI service run on background threads, so the server main thread is never blocked while waiting for a response.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Server owners who want an AI assistant available through chat, and players who prefer answers in their own language without leaving the game.
How it compares
Free Translator is a client-side only Fabric mod for 1.21.5 under All rights reserved, so each player must install it and it does not run on a server. Reply works server-side only on Fabric for 1.21 – 1.21.11 under the MIT License, but it is not an AI chatbot. AutoReply is client-side only for 1.21.1 under the BSD 3-Clause License, which means players install it on their own clients.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Little Whale AI | Fabric | 1.21.8 | Server-side only | 2026-04-26 |
| Free Translator | Fabric | 1.21.5 | Client-side only | 2025-07-08 |
| Reply | Fabric | 1.21 – 1.21.11 | Server-side only | 2024-11-05 |
| AutoReply | Fabric | 1.21.1 | Client-side only | 2026-09-01 |
Questions
Does Little Whale AI need to be installed on the client?
Which Minecraft version does Little Whale AI support?
How are private and public replies switched?
In the catalog
Little Whale AI is one of 5,392 Social mods on ModsFinder, and one of 4,084 Social mods for Fabric. 17,695 mods support Minecraft 1.21.8.
Similar mods
What the author says
A lightweight, fully asynchronous Fabric mod that brings a friendly AI player named Little Whale into your Minecraft server. Powered by any OpenAI-compatible API, it can chat with players in private or public, understand context, and speak their language.
Official listing
- Modrinth page
- modrinth.com/mod/little-whale-ai
- Owner
- bilibilihcdwl
- Published
- 2026-04-26
- Updated on Modrinth
- 2026-04-26
- Facts verified
- 2026-10-15