Features a much larger community of characters and polished UI, but strictly enforces safety filters unlike JanitorAI.
Features a much larger community of characters and polished UI, but strictly enforces safety filters unlike JanitorAI.
JanitorAI records 125,494,484 monthly visits with -5.1% month-over-month growth and Freemium pricing. LangTest records 4,478 monthly visits with +1.6% growth and Paid, Contact for Pricing pricing.

Red-team and evaluate AI agents before they reach production
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | janitorai.com | synergetics.ai |
| Pricing Model | Freemium | Paid, Contact for Pricing |
| Monthly Visits | 125.49M (125,494,484) | 4.48K (4,478) |
| MoM Traffic Delta | -6.77M (-5.1%) | +70 (+1.6%) |
| Primary Market & Share | 🇺🇸 United States (38.7%) | 🇺🇸 United States (65.1%) |
| Direct Visits / mo | 89.53M | 1.79K |
| User Rating | 4.2 | 4.3 |
| Supported Platforms | Website | Website |
Customizable AI character roleplay platform featuring free JanitorLLM chats, logic scripts, and multi-model API routing.
Provides unlimited free character chats powered by JanitorAI's in-house LLM (~9K context window on free accounts), with a toggleable JLLM-short mode for snappy, dialogue-focused replies that are 70% shorter.
Lets Janitor+ subscribers tap directly into third-party frontier models via a built-in per-token wallet at a 10% discount, while keeping full BYOK reverse-proxy support with config duplication and reasoning tag display.
Allows creators to build complex characters up to 1 MB in size with multiple intro scenarios and programmable Scripts that trigger dynamic lore or behavioral rules using whole-word matching and built-in debugging tools.
Exposes low-level sampling parameters in the chat menu, including custom Top-K, Top-P, frequency and repetition penalties, forbidden vocabulary lists, and response prefill instructions.

Red-team and evaluate AI agents before they reach production
Adversarial evaluation of agents to surface unsafe, non-compliant or unreliable behaviour before they run against real users and real money.
Measure and track how much fine-tuning private models with LangTrain improves accuracy for your specific domain.
Verify that agent responses are repeatable and reliable enough for regulated workflows such as clinical, lending or claims decisions.
Evaluate agents that work across text, voice, vision and other modalities rather than text alone.
Features a much larger community of characters and polished UI, but strictly enforces safety filters unlike JanitorAI.
Features a much larger community of characters and polished UI, but strictly enforces safety filters unlike JanitorAI.

Provides unfiltered character roleplay and multi-model switching, serving as a very close alternative to JanitorAI.
Provides unfiltered character roleplay and multi-model switching, serving as a very close alternative to JanitorAI.

Features massive user-generated persona libraries with voice playback for casual character chatting.
Features massive user-generated persona libraries with voice playback for casual character chatting.
Hosts millions of user-created fictional bots for immersive roleplay conversations similar to JanitorAI.
Hosts millions of user-created fictional bots for immersive roleplay conversations similar to JanitorAI.

Combines adult-focused character chat, storytelling, and image generation for creative roleplay users.
Combines adult-focused character chat, storytelling, and image generation for creative roleplay users.

Free / Open-sourceProvides privacy-focused, uncensored open-source model APIs that advanced users can route for private roleplay.
Free / Open-sourceProvides privacy-focused, uncensored open-source model APIs that advanced users can route for private roleplay.
Offers unrestricted anime and fantasy character chats, matching JanitorAI's permissive content policy.
Offers unrestricted anime and fantasy character chats, matching JanitorAI's permissive content policy.
Enables custom persona creation and open-ended roleplay adventures in a similar community environment.
Enables custom persona creation and open-ended roleplay adventures in a similar community environment.
An independent platform for custom character creation and open-ended roleplay sessions with minimal restrictions.
An independent platform for custom character creation and open-ended roleplay sessions with minimal restrictions.
Free / Open-sourceAn open-source bring-your-own-key frontend that connects character cards to custom LLM backends like JanitorAI.
Free / Open-sourceAn open-source bring-your-own-key frontend that connects character cards to custom LLM backends like JanitorAI.

Attack-led AI security testing and red teaming
Attack-led AI security testing and red teaming

Free / Open-sourceBuild, simulate, evaluate and monitor self-improving AI agents
Free / Open-sourceBuild, simulate, evaluate and monitor self-improving AI agents