Chub
Chub AI · Other · Chatbot
Chub AI is an uncensored AI roleplay platform where you chat with characters through APIs like OpenAI, Claude, or its own Mars models.
About Chub
What Is Chub AI
Chub AI is a platform for talking with AI characters. It does not build its own chatbot from scratch. Instead, it connects to large language models through APIs, then wraps them in a ready-to-use chat interface. That means the words a character says come from models like OpenAI's or Anthropic's, while Chub handles the character cards, the chat layout, and the settings behind them.
The platform's defining trait is that it is uncensored. Chub states that it places no meaningful restriction on what characters can be posted or what types of interactions users can have with them. That openness is the main reason people pick Chub over more filtered alternatives, and it is also the reason the service may not suit every audience.
There are real limits to know about. You still need a model to power the chat. Some options cost money per message, some require you to manage an API key, and the free local option depends on your own hardware. Chub is also built for text-first roleplay, so casual users who want a guided, polished product may find the setup heavier than they expect.
Getting Started
- Go to chub.ai and click Register in the top right corner. Enter an email address, choose a public username, and set a password.
- Open the character you want and press the Chat button, or create your own through the Character Creator.
- Set up an API under Secrets. Pick OpenAI, Anthropic, OpenRouter, Google, NovelAI, or the built-in Mars plan, then paste your key or subscribe.
- Adjust the system prompt and generation settings, then send your first message and keep the conversation going.
Product Information
A quick look at Chub's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- Roleplay and storytelling fans
- Writers shaping fictional dialogue
- Privacy-minded tinkerers
Tasks
- Building a reusable AI character
- Comparing how different models handle roleplay
- Continuing a story over time
Scenarios
- Running a private local setup
- Setting up a zero-config paid chat
- Drafting interactive fiction with multiple openings
Key features
Uncensored Character Library
Chub does not gate what characters can be published or what you can discuss with them, which sets it apart from mainstream AI chat services. The public catalog is user-generated, so the range of genres and themes runs far wider than most competitors allow. Nothing about this is curated for safety, so you should expect adult and edgy content to be visible.
Multiple API Connections
The platform works with OpenAI, Anthropic, Google, OpenRouter, NovelAI, and the free Kobold/Ooba route for local models. You connect each one by pasting an API key under Secrets, and Chub routes the generation for you. Having several options means you can match the model to the task, or fall back to another provider if one changes its pricing.
Mars Uncensored Models
Mars is Chub's own line of uncensored language models, finetuned on public data plus the company's proprietary material. Chub states plainly that this training data does not include public or private chats from its platform. A Mars subscription costs $20 a month with unlimited messaging and needs no key setup, so it connects automatically once you subscribe.
Character Creator and Macros
The Character Creator splits into Character Info (name, avatar, tags, rating) and Character Definition (description, first message, scenario, example dialogs). Macros such as {{user}}, {{char}}, {{random:}}, and {{roll:}} let you build responsive characters, and the {{roll:4d6}} style dice logic even supports simple conditional scenes.
Chat Trees and Alternate Greetings
Chat trees turn a single conversation into branching paths, so you can rewind and try a different response without throwing away the rest of the story. Alternate greetings add several ways for a scene to open, and you swipe between them to pick a starting tone. Together they make longer, exploratory roleplay much easier to manage.
Import and Export
Chub can export and import chats from existing services, which lowers the cost of switching platforms. If you already have a library of conversations elsewhere, you can bring the history across instead of starting over. This matters most for people who have invested real time into long-running characters.
Pros and cons
Pros
- Chub is explicitly uncensored, so characters and conversations are not filtered the way most hosted chatbots filter them.
- You can bring your own model through OpenAI, Anthropic, Google, OpenRouter, or NovelAI, or run one locally for free.
- The Mars plan gives unlimited messaging for a flat $20 a month and needs no API key management.
- Character cards, lorebooks, macros, and chat trees support deep, reusable character building.
- Import and export make it easy to move an existing chat history into the platform.
Cons
- There is no single free hosted model. The free path relies on running a local model that meets your hardware.
- Using paid third-party APIs means tracking separate key budgets and provider pricing on top of Chub.
- Uncensored content is not for everyone, and the open library can surface material that many users find offensive.
Frequently asked questions
The platform is free to browse and use, and the Kobold/Ooba option lets you run a local model at no cost. If you want hosted power without managing keys, the Mars subscription is $20 a month with unlimited messages.
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