Free / Open-sourceHigh-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
#1Jan records 291,894 monthly visits with -9.6% month-over-month growth and Free pricing. Quantum Copilot records 0 monthly visits with 0% growth and subscription pricing.
An AI copilot for quantum computing, from theory questions to real hardware runs.
| Dimension / Metric | ||
|---|---|---|
| Official Domain | jan.ai | qc.vuics.com |
| Pricing Model | Free | subscription |
| Monthly Visits | 291.89K (291,894) | 0 (0) |
| MoM Traffic Delta | -30.85K (-9.6%) |
| 0 (0%) |
| Primary Market & Share | 🇺🇸 United States (23%) | 🌐 Global (—) |
|---|
| Direct Visits / mo | 105.62K | 0 |
|---|
| User Rating | 4.6 | 4.1 |
|---|
| Supported Platforms | Website | Website |
|---|
Open-source desktop AI that runs models locally on your own machine
Download and run open models such as Llama, Mistral, Qwen, Gemma, and DeepSeek directly on your own machine, with chat data kept on device.
Optionally connect API keys for OpenAI, Anthropic, Gemini, Mistral, and other providers to route requests to frontier models from the same interface.
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.
Create assistants with their own system instructions, model selection, and parameters, then reuse them across conversations.
An AI copilot for quantum computing, from theory questions to real hardware runs.
One assistant with focused modes: Adviser for hardware and software questions, Researcher for pulling from papers, blogs and the web.
The Programmer mode writes OpenQASM, Q# and Qiskit/Cirq code, while the Transpiler mode converts between languages like pyQuil, Quil, Braket and TensorFlow Quantum.
Run circuits on web and cloud simulators, or execute established algorithms on real quantum hardware from providers such as IBM.
Answers can include plain text, Markdown, MathJax math, code, images and diagrams of quantum circuits thanks to the Formatter mode.
Free / Open-sourceHigh-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
#1Free / Open-sourceGoogle's agent-first development platform for building and shipping software with AI agents
#2
Free / Open-sourceDescribe your idea and Replit builds a working app in minutes
#3Free / Open-sourceProvides a lightweight command-line runtime for local LLMs, though it lacks Jan's built-in graphical user interface.

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Hands-on lab infrastructure for AI, cloud, and data education
SpecialistSpecializes in document chat and local RAG workflows, though less focused on general-purpose model tinkering than Jan.

Free / Open-sourceUnites multiple AI providers in a customizable open-source platform, but is typically deployed as a web server.
Free / Open-sourceHigh-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
Free / Open-sourceGoogle's agent-first development platform for building and shipping software with AI agents
Free / Open-sourceProvides a lightweight command-line runtime for local LLMs, though it lacks Jan's built-in graphical user interface.
Free / Open-sourceThe AI coding agent that turns ideas into shipped software
Free / Open-sourceA spec-driven AI IDE and agent platform that plans, builds, reviews, and verifies real engineering work.
Free / Open-sourceOffers a powerful self-hosted web interface for local models, but requires manual Docker setup rather than desktop installation.
Free / Open-sourceAn AI IDE and coding agent that works on your project, not just your cursor
Free / Open-sourceAI-powered terminal and agentic software factory for development teams
SpecialistSpecializes in document chat and local RAG workflows, though less focused on general-purpose model tinkering than Jan.
Free / Open-sourceUnites multiple AI providers in a customizable open-source platform, but is typically deployed as a web server.