# Jan vs PERSYS Jan records 291,894 monthly visits with -9.6% month-over-month growth and Free pricing. PERSYS records 56 monthly visits with -85% growth and Paid pricing. | Metric | [Jan](https://openaitools.app/tool/jan) | [PERSYS](https://openaitools.app/tool/persys) | | :--- | :--- | :--- | | Website URL | https://jan.ai | https://persys.ai | | Categories | AI Chatbot, AI Assistant, Open Source AI Models, Large Language Models (LLMs) | AI Assistant, AI Chatbot, AI Files, AI PDF | | Pricing Model | Free | Paid | | Monthly Visits | 291,894 | 56 | | MoM Growth Rate | -9.6% | -85% | | Primary Market | United States | South Korea | | Direct Visits | 105,615 | 22 | | Review Score | 4.6 | 4.1 | | Saved Count | 6 | 0 | | Supported Platforms | Website | Website | ## Jan Jan is a desktop application that positions itself as an open replacement for ChatGPT, with the key difference that inference happens on hardware you control. After installing the app you pick a model, and Jan downloads and runs it locally, so prompts, chat history, and files stay on your machine rather than on someone else's server. For heavier workloads you can connect an OpenAI, Anthropic, Gemini, or Mistral key and route requests to the cloud while keeping the same chat interface and local history. The project is developed in the open by Menlo Research and has accumulated tens of thousands of GitHub stars along with millions of downloads. It exposes OpenAI-compatible local endpoints, which means existing tooling and SDKs can point at Jan instead of a hosted service, and it supports custom assistants with their own instructions and model choices. Recent releases have added an agent surface alongside the classic desktop chat, and a memory feature is announced as coming to carry context and preferences between sessions. Because it is open source, Jan can be audited, self-built, and extended, and there is no paid tier gating the desktop client. The practical tradeoff is that local model quality and speed depend entirely on your own GPU or CPU, so lighter machines will favor smaller quantized models while cloud keys remain the escape hatch for harder tasks. **Pricing & Plans:** Jan is free and open source, with no paid tier for the desktop app. Costs only appear if you optionally connect your own paid cloud API keys for providers such as OpenAI or Anthropic. - **Local-first inference:** Download and run open models such as Llama, Mistral, Qwen, Gemma, and DeepSeek directly on your own machine, with chat data kept on device. - **Bring your own cloud models:** Optionally connect API keys for OpenAI, Anthropic, Gemini, Mistral, and other providers to route requests to frontier models from the same interface. - **OpenAI-compatible local API:** Jan exposes a local server endpoint that follows the OpenAI API shape, so existing SDKs and tools can talk to your local models without code changes. - **Custom assistants:** Create assistants with their own system instructions, model selection, and parameters, then reuse them across conversations. - **Open source and extensible:** The full desktop client and agent code are public on GitHub, so you can audit behavior, build your own version, and contribute improvements. **Strengths:** Completely free and open source, with no account required to run local models; Conversation data stays on your device by default; Works across macOS, Windows, and Linux with an OpenAI-compatible local endpoint; Optional cloud key support lets you mix local and frontier models in one app **Limitations:** Local model quality and speed are capped by your own hardware; Very large models may need substantial RAM or VRAM to be practical; Some cloud-connected and memory features are newer or still rolling out [Profile (Markdown)](https://openaitools.app/tool/jan.md) ## PERSYS PERSYS is dedicated hardware rather than an app or a cloud subscription. It is positioned as a complement to your laptop and phone, not a replacement: a box that sits at home and acts like your own personal cloud, holding files and running AI inference locally. Because inference happens on the device, conversations with the assistant are not sent to external servers, and the system stays usable without an internet connection. The software stack is open source for transparency, and the device ships with AI-native applications built for the hardware: Private Chat, Deep Search, Smart Notes, Document Library, Private Gallery and Media Player. The specification is deliberately simple. Two storage tiers are offered, 1 TB and 2 TB, with 8 GB or 16 GB of memory respectively, dual WiFi and 27 W power draw in a matte white enclosure with a stand included. PERSYS is sold directly by AdulisAI, Inc. with support documentation, a GitHub presence and community links. **Pricing & Plans:** Hardware purchase, no subscription mentioned. The 1 TB model is listed at $300 and the 2 TB model at $330, with the stand included. Prices are as shown on the vendor site and may change. - **On-device AI inference:** Models run locally, so chats and prompts are processed on the device rather than in a remote data centre. - **Works without internet:** Chat, search, notes and the document library remain accessible with no connection, making the device useful offline. - **Large local storage:** Choose 1 TB or 2 TB of solid-state storage for photos, videos and documents, all kept inside the device. - **AI-native apps:** Private Chat, Deep Search, Smart Notes, Document Library, Private Gallery and Media Player are built for the hardware from the ground up. - **Open source software:** The stack is published openly so users and researchers can verify what the device actually does with their data. **Strengths:** Conversations and files never leave your hardware; Fully usable offline, including AI chat and search; Open source software aids transparency and trust; Straightforward pricing with no subscription required **Limitations:** On-device models are typically less capable than the largest cloud models; You buy dedicated hardware upfront, a bigger commitment than an app; Documentation pages were not reachable at the time of the check [Profile (Markdown)](https://openaitools.app/tool/persys.md) ## Frequently Asked Questions ### How do Jan and PERSYS compare in monthly traffic? Jan has 291,894 monthly visits, while PERSYS has 56. Traffic estimates describe audience size, not product quality. ### How do their growth rates compare? Jan has a month-over-month growth rate of -9.6%; PERSYS has -85%. ### How does pricing compare? Jan: Free. Jan is free and open source, with no paid tier for the desktop app. Costs only appear if you optionally connect your own paid cloud API keys for providers such as OpenAI or Anthropic. PERSYS: Paid. Hardware purchase, no subscription mentioned. The 1 TB model is listed at $300 and the 2 TB model at $330, with the stand included. Prices are as shown on the vendor site and may change. ## Alternatives | # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | [Ollama](https://openaitools.app/tool/ollama) | 9,421,973 | +4.3% | Free, Freemium, Paid | Provides a lightweight command-line runtime for local LLMs, though it lacks Jan's built-in graphical user interface. | [.md](https://openaitools.app/tool/ollama.md) | | 2 | [Kagi Search](https://openaitools.app/tool/kagi-search) | 4,647,605 | +3.2% | Free Trial, Paid | A paid, ad-free search engine that answers to its users | [.md](https://openaitools.app/tool/kagi-search.md) | | 3 | [Clawdbot (OpenClaw)](https://openaitools.app/tool/clawdbot) | 1,903,068 | -25.4% | Paid, Free | Open-source personal AI assistant that runs on your own machine and works from chat apps | [.md](https://openaitools.app/tool/clawdbot.md) | | 4 | [Open WebUI](https://openaitools.app/tool/open-webui) | 804,534 | -2.8% | Freemium | Offers a powerful self-hosted web interface for local models, but requires manual Docker setup rather than desktop installation. | [.md](https://openaitools.app/tool/open-webui.md) | | 5 | [AnythingLLM](https://openaitools.app/tool/anythingllm) | 512,269 | +12.9% | Freemium | Own your intelligence: a private AI assistant that runs entirely on your machine | [.md](https://openaitools.app/tool/anythingllm.md) | | 6 | [LibreChat](https://openaitools.app/tool/librechat) | 346,879 | -3.5% | Free | Unites multiple AI providers in a customizable open-source platform, but is typically deployed as a web server. | [.md](https://openaitools.app/tool/librechat.md) | | 7 | [Vellum](https://openaitools.app/tool/vellum) | 331,901 | -20.8% | Freemium, Paid | A private, memory-powered AI assistant you own and customize | [.md](https://openaitools.app/tool/vellum.md) | | 8 | [Dyad](https://openaitools.app/tool/dyad) | 207,981 | +3.5% | Freemium | Free, open-source AI app builder that runs on your own machine | [.md](https://openaitools.app/tool/dyad.md) | | 9 | [Lemonade](https://openaitools.app/tool/lemonade-ai) | 96,232 | -34.4% | Free | Acts as an open-source local AI server supporting multimodal models, though it is less established as a desktop client. | [.md](https://openaitools.app/tool/lemonade-ai.md) | | 10 | [Elephas](https://openaitools.app/tool/elephas) | 76,647 | -14.7% | Freemium | Private AI that answers from your own documents, on Mac and Windows | [.md](https://openaitools.app/tool/elephas.md) | --- Source: https://openaitools.app/compare/jan-vs-persys More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)