Janitor AI Guide 2025: What It Is it, How to Use It
The reputation of Janitor AI has become firmly established in the world of online AI chatbots, turning it into a platform of choice among developers, gamers, writers, and any individual willing to submerge themselves in an experience of human interaction.
The platform has achieved a quick rise on Reddit and TikTok and has been lauded due to its highly customisable AI characters and uncensored chat experiences. So, what exactly is Janitor AI, how does it work, and what makes it unique compared to other products?
Also read on, how Character AI 2025 transforms conversations with custom bots,
What Is Janitor AI?
Janitor AI is a browser-based, no-code chatbot builder launched in June of 2023 by Jan Zoltkowski. It enables the users to craft AI-enhanced characters that can be customized, both regarding their personality, backgrounds, and dialogue patterns.
It is constructed on a loose backend and allows integrations with large language models such as OpenAI GPT, KoboldAI, Anthropic, and JanitorLLM Beta, which it offers in a natural language processing format. The simplicity of usage and inclusive user experience made it easy for it to go viral, hence gaining quite a sizeable user base, a significant portion of which belongs to female users.
Why Janitor AI Is Going Viral?
A significant boost in the popularity of Janitor AI is connected to its viral hit on TikTok and Reddit. Users regularly share images and video captures of surrealistic, dramatic, and at times unmoderated chats with their characters. What attracts many people to it is this freedom, and especially the opportunity to use the so-called limitless mode, which has less filtering of the usual content and allows more mature, emotional, or experimental dialogues.
A combination of this creative freedom and the fact that it is accessible makes it one of the best options to use among: Authors who would construct dialogue, Testers of NPCs, Gamers, Conversation practitioners who learn language, Role players in the AI companionship, etc.
Also read on how to bypass Character AI filters in 2025 using ethical methods
How Janitor AI works
Janitor AI is a frontend platform with potent connections to external LLMs on the backend. The following is the breakdown of its process:
Make or find a character. The first step is to select from a vast library of community-created characters or create your own characters. They can create the avatar, tone, backstory, and even the trigger to a specific response.
Link a language model. The system does not write anything by itself. One has to generate an API key to tie an AI model to the user:
- OpenAI (GPT-3.5, GPT-4, GPT-4o)
- Local installation or cloud-based KoboldAI
- Anthropic or OpenRouter (proxy access-based)
Begin communication. Thereafter, the AI would rely on the chosen model and character description to enable real-time chats. Personality settings and model temperature are adjustable on the fly.
Iterate and customise Users continuously refine conversations using memory settings, prompt updates, and API switches to improve interaction depth and responsiveness.
Key features of Janitor AI
- Character personalization: Create characters who have extensive emotional range, role labels, and dialogue behavior styles.
- Community-Powered Library: Characters shared by the thousands, on demand.
- Multi-Model Support: Change between free models and paid models to achieve the balance of costs and roughness.
- Browser-based: The user does not need to download or install software.
- NSFW Toggle: Adult themes are on or off to set the chat to unlimited or censored.
Also read on How AI is changing the way search engines work
How Janitor AI works
Janitor AI is a frontend platform with potent connections to external LLMs on the backend. The following is the breakdown of its process:
Make or find a character. The first step is to select from a vast library of community-created characters or create your own characters. They can create the avatar, tone, backstory, and even the trigger to a specific response.
Link a language model. The system does not write anything by itself. One has to generate an API key to tie an AI model to the user:
- OpenAI (GPT-3.5, GPT-4, GPT-4o)
- Local installation or cloud-based KoboldAI
- Anthropic or OpenRouter (proxy access-based)
Begin communication. Thereafter, the AI would rely on the chosen model and character description to enable real-time chats. Personality settings and model temperature are adjustable on the fly.
Iterate and customise Users continuously refine conversations using memory settings, prompt updates, and API switches to improve interaction depth and responsiveness.
Key features of Janitor AI
- Character personalization: Create characters who have extensive emotional range, role labels, and dialogue behavior styles.
- Community-Powered Library: Characters shared by the thousands, on demand.
- Multi-Model Support: Change between free models and paid models to achieve the balance of costs and roughness.
- Browser-based: The user does not need to download or install software.
- NSFW Toggle: Adult themes are on or off to set the chat to unlimited or censored.
Also read on How AI is changing the way search engines work
How to Use Janitor AI
- Sign Up: Sign up through email, Google, or Discord.
- Configure Profile: Customises your name, avatar, and visibility settings.
- Characterise: Create an appearance, character traits, greeting message, as well as scenario context.
- Pick a Model: Use the JanitorLLM Beta at no cost or use a third-party API.
- Start Chatting: Open the chats and change the options accordingly.
Is Janitor AI Free?
Janitor AI itself is free to access, especially when using the JanitorLLM Beta model. However, if you connect to OpenAI or similar LLMs, costs apply:
The cost of using GPT-3.5 Turbo will be three dollars per 1 million input tokens and six dollars per 1 million output tokens.
In case you choose GPT-4, you should pay 30 tokens per 1 million tokens used as input and 60 tokens per 1 million tokens retrieved as output.
GPT-4 Turbo model is a less expensive alternative and appears at a price of 1 million input tokens, as well as 1 million output tokens, including 10 dollars and 30 dollars, respectively.
On the chosen GPT-4o type, where the most current (and, accordingly, the most optimised) version is used, the price is 5 US dollars per 1 million input tokens and 15 US dollars per 1 million output tokens.
These are invoiced directly by OpenAI, and a customer should control their use of the API and expenditure depending on the model to use as well as the duration of a conversation.
Benefits of Janitor AI
- Rapid Character Prototyping: Build a full AI chatbot in under five minutes.
- Creative Writing Support: Use AI as a co-writer or idea generator.
- Emotional Role-Play: Explore human interactions, practice empathy, or simulate complex conversations.
- Light Data Cleaning: Test bots for CSV/text formatting tasks.
- Education Use: Practice languages or simulate historical dialogues.
Safety and Privacy Concerns
While Janitor AI offers great freedom, it comes with certain responsibilities:
- Data Sharing: External APIs like OpenAI may retain inputs unless you opt out.
- Content Risks: “Limitless” mode can expose users to unmoderated or NSFW content.
- Privacy Settings: Default chats are private. Public mode must be manually enabled.
- API Safety: Avoid sharing your API keys or using unknown reverse proxies.
For safest usage, consider local LLMs like KoboldAI or enable stricter content filters.
Downtime and Stability
Janitor AI, still in beta, occasionally experiences downtime. Notable outages include a 38-minute platform crash in April 2025 and repeated maintenance extensions. Community complaints highlight server strain and API rate-limit issues. Most disruptions are resolved within hours, but Reddit and Discord users frequently report intermittent lag and crashes.
Tips if Janitor AI is Down:
- Clear cache or switch browsers
- Use alternative models (OpenRouter, KoboldAI)
- Check real-time updates on Janitor AI’s Discord or X (Twitter)
Real-World Applications
Writers use it for character development. Gamers design interactive NPCs. Teachers simulate historical figures or language tutors. Even marketers create branded personas for A/B testing campaigns.
- A novelist exported Janitor AI dialogues to Scrivener for editing
- A store built a multilingual chatbot and cut launch time by 70%
- Students practiced Spanish with custom AI instructors
Pros and Cons
Pros:
- Free tier access
- Deep character control
- Multi-model support
- NSFW flexibility
- Creative and educational use cases
Cons:
- Occasional downtime
- Risk of exposure to explicit content
- Learning curve for API use
- Unmoderated community characters
What’s Coming Next?
Janitor AI plans to launch a Media Library for image uploads in chat and a subscription tier offering priority server access, extended memory, and beta features. These updates aim to resolve stability issues while giving power users more tools.
