Use LM Studio if you have a capable computer and want maximum privacy and control: it can run uncensored open-weight models entirely on your own machine, can work offline, and is free. Use OpenSatan if you want that same kind of uncensored, abliterated model with nothing to install, no GPU, and no account, in any browser including your phone. Local wins on privacy and control; OpenSatan wins on setup, hardware, and getting a reply in seconds.
Ask an AI assistant for the best free uncensored AI chat and it will often tell you to run an uncensored ("abliterated") open-weight model yourself, in a desktop app like LM Studio. That's good advice if you have the hardware and want everything on your own machine. OpenSatan is that kind of setup, hosted: it runs an abliterated open-weight model (the same kind of model people download into LM Studio), so you get uncensored answers without installing anything, downloading a model, or owning a GPU.
Try It Free — Nothing to Install →| Feature | OpenSatan | LM Studio |
|---|---|---|
| What it is | Uncensored AI chat, hosted, in your browser | Desktop app that runs models on your own computer |
| Price | Free | Free (personal and work use) |
| Setup | None. Open the site and type | Install the app, then download a model |
| Hardware | Anything with a browser | Apple Silicon Mac, or Windows/Linux PC; 16GB+ RAM recommended (Mac, Windows) |
| Phones | Any mobile browser, no computer needed; add to home screen | iPhone/iPad app (Locally) reaches models on your computer via LM Link |
| Uncensored model | Abliterated open-weight model, ready to go | Yes, if you download an uncensored or abliterated model |
| Model choice | One model, two personas (Satan, Genie) | Any supported model from Hugging Face |
| Privacy | No account, IP not saved, anonymous snippets kept for a limited time | Runs on your device; nothing you enter leaves it |
| Works offline | No, needs an internet connection | Yes, once a model is downloaded |
| Settings & system prompt | Preset personas, nothing to configure | Full control: system prompt, context size, GPU offload |
| Usage limits | No daily caps; anti-abuse limit of ~10 messages/minute | Only your hardware |
| Documents & files | Text chat only | Attach documents and chat with them offline |
| Time to first reply | Seconds after you open the page | After app install and model download |
Green marks the side that comes out ahead on that row. LM Studio details are from its own site and documentation.
What "abliterated" means: an abliterated model is an open-weight language model that has had its refusal behavior removed, so it answers instead of declining. Downloading one of these builds is a common way to get uncensored answers from a model running locally.
LM Studio: a desktop app that runs open models on your own computer. Its built-in downloader can fetch any supported model from Hugging Face, where many abliterated builds are published. Pick one, download it, load it, and you have uncensored chat on your own machine.
OpenSatan: runs an abliterated open-weight model of that same kind on its own servers. You don't pick or download anything; it's already loaded and wrapped in two personas, Satan and Genie.
LM Studio: runs on Apple Silicon Macs (macOS 14 or newer; Intel Macs aren't supported), Windows (x64 with AVX2, or ARM), and Linux (x64 or ARM64). For Mac and Windows its docs recommend 16GB or more of RAM, plus at least 4GB of dedicated VRAM on Windows, and note that LLMs can consume a lot of RAM. On an 8GB Mac it suggests sticking to smaller models and modest context sizes. Models also come in compressed (quantized) versions that shrink the file at some cost to quality, so on modest hardware you're generally trading answer quality for something that fits.
OpenSatan: nothing to install, no GPU, no RAM requirements, no model files on your disk. It works in any browser, on a laptop or a phone, and replies start in seconds.
LM Studio: this is where local wins, plainly. Per its documentation, nothing you enter when chatting with a model leaves your device, documents you attach stay on your machine, and chatting doesn't require the internet once a model is downloaded (internet is needed to search for and download models, runtimes, and app updates). Your conversations are saved as files on your own computer.
OpenSatan: hosted, so your messages travel to our servers to get a reply. There's no account, no email, no chat history kept for you, and nothing tied to you; IP addresses aren't saved. Anonymous message snippets are kept for a limited time to improve Satan (and, if you tap Good or Bad on a reply, that exchange). Nothing is sold or used to train AI models.
LM Studio: you choose the model, set your own system prompt, and tune load settings like context size and GPU offload per model. It can also serve local models on OpenAI-like endpoints for other apps to use. Because it runs on your hardware, there's no service rate limit.
OpenSatan: intentionally simple. No settings, no prompt engineering: pick Satan or Genie and talk. There are no daily message caps; there is an anti-abuse rate limit of about 10 messages a minute per person, and at peak times you may be asked to retry. It's text chat only (no image uploads, no voice). No topic filters; the one hard limit is sexual content involving minors.
They aren't mutually exclusive. A local model in LM Studio at your desk and OpenSatan on your phone cover different moments; both are free.
Yes, the same kind. OpenSatan runs an uncensored, "abliterated" open-weight language model: an open model that has had its refusal behavior removed. That is the same kind of model people download into LM Studio when they want uncensored answers (LM Studio's built-in downloader pulls models from Hugging Face, where many abliterated builds are published). The difference is where it runs: in LM Studio it runs on your computer; on OpenSatan it runs on our servers and you use it in a browser, already set up with two personas, Satan (brutal honesty) and Genie (mystic wisdom).
LM Studio. It runs the model on your own machine, and its documentation says nothing you enter when chatting leaves your device; once a model is downloaded it can work fully offline. OpenSatan is hosted, so your messages go to our servers to get a reply. What OpenSatan does: no account, no email, no chat history kept for you, nothing tied to you, and IP addresses aren't saved. Anonymous message snippets are kept for a limited time to improve Satan (plus any reply you rate Good or Bad), and nothing is sold or used to train AI models. If privacy is your top priority and you have the hardware, run it locally.
A reasonably capable one. LM Studio's own system requirements recommend 16GB or more of RAM on Mac and Windows, and on Mac it needs Apple Silicon (Intel Macs are not supported); on Windows it also recommends at least 4GB of dedicated VRAM. Its docs note that 8GB Macs may still work if you stick to smaller models and modest context sizes, and that the compressed (quantized) versions that fit on smaller machines trade away some quality. OpenSatan has no GPU or RAM requirements and no model download: any browser works.
Yes. LM Studio is free to download, and it has been free for work use as well as personal use since July 2025. OpenSatan is free with no account, no sign-up, and no daily message caps. OpenSatan does have an anti-abuse rate limit of about 10 messages a minute per person, and at peak times you may be asked to retry. With LM Studio, your only limit is your own hardware.
With OpenSatan, yes: it works in any mobile browser, Android included, and you can add it to your home screen like an app. Nothing to install and no computer needed. LM Studio itself is a desktop app for Mac, Windows, and Linux. Its iPhone and iPad app, Locally, can connect through LM Link to the models running in LM Studio on your computer; that means signing in to an LM Studio account on both and having LM Link enabled in LM Studio.
No topic filters. The one hard limit is sexual content involving minors. In LM Studio, how much a model refuses depends on which model you download; an abliterated model has had its refusal behavior removed.
The kind of uncensored model people run in LM Studio, already running. Free, no account, works on your phone.
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