Janitor AI

Janitor AI is an AI character creation and roleplay platform developed by Janitor Inc. It enables users to design, customize, and interact with virtual AI characters using proprietary models or external API keys. Rather than operating strictly as a pre-packaged chatbot app, Janitor AI functions primarily as a front-end interface that grants users granular control over prompt engineering, character scenarios, and underlying LLM selection.

The platform was created by developer Jan Zoltkowski and launched in June 2023. Originally created as a niche project, it gained rapid adoption due to its extensive persona customization suite and unmoderated creative environment.

A key differentiator for Janitor AI is its flexible model-routing architecture. Users can interact with characters via its native hosted model, JanitorLLM, or connect external API keys (such as OpenAI, OpenRouter, and KoboldAI). This allows creators and users to balance output quality, cost, and context retention according to their preferences.

Janitor AI also features character persona tuning, allowing creators to define backstories, dialogue examples, scenarios, and appearance traits. It includes context memory settings, granular SFW/NSFW content toggles, an Image/Avatar asset gallery, and public/private character discovery.

Pricing

Janitor AI operates on a freemium model with optional API pay-as-you-go integrations. Official tiers include $0/month for Free, $9.99/month for Pro, and variable third-party usage costs when utilizing external API keys.

Review

Janitor AI stands out for giving roleplayers and character creators total control over conversational engines and persona parameters. Its ability to swap backend LLMs via custom API keys, combined with its unmoderated roleplay environment, makes it one of the most flexible character engines available.

The Free tier with JanitorLLM provides a complete entry point without requiring payment or API configuration. However, performance on the free native model can be inconsistent during peak hours, and setting up external API keys adds technical friction for non-technical users.