Crux vs Orbital PAI

Crux and Orbital PAI are both personal assistants tracked by AIDiveForge. Below is a side-by-side comparison of pricing, capabilities, platforms, and ownership — sourced from each tool's live website and verified before publishing.

Crux

The core loop is agentic: you describe a task, and Crux reads files, runs scripts, writes outputs, and edits code — showing you every change before it lands. The vendor demonstrates this with bank statement analysis that reads a CSV, generates a spending report, and patches a budget tracker in one pass. A global overlay (summoned by a single shortcut) lets it operate on top of any open window, so it can read your screen and answer questions about whatever app is in front of you. The beta label on both Mac and Windows builds is real — treat it accordingly before putting it in a daily critical workflow.

Orbital PAI

Built on Elixir/Phoenix for low-latency local execution, it handles calendar management, email, reminders, weather queries, and web search through a tool-calling brain that chains steps without you scripting the handoffs. Persistent memory means it carries context across sessions rather than starting blank every conversation. The self-hosted path is real — there is a Dockerfile and docker-compose.yml in the repo. The warning the maintainers put at the top of the README is not decorative: the project is under heavy active development, which means APIs shift, documented behavior changes, and any deployment you build today is maintenance work tomorrow.

Attribute	Crux	Orbital PAI
Pricing	Paid	Free
Price	$10 one-time	—
Free trial	No	No
Open source	No	Yes
Has API	No	No
Self-hosted option	Yes	Yes
Platforms	Mac (Apple silicon), Windows	Web (PWA), Self-hosted (Elixir/Phoenix, Docker)
Pros	Full local execution — files, chat history, and context never leave your machine — so teams with strict data-handling requirements can use an AI agent without routing sensitive documents through a third-party API. Agentic task sequencing reads files, runs scripts, and edits code in a single pass with every change surfaced for review before it commits, which means you catch errors before they propagate rather than untangling them after the fact. Screen-aware overlay mode reads whatever application is currently open and can answer questions or suggest edits in context, eliminating the copy-paste shuttle between a chat window and the tool you're actually working in. Self-hosted desktop architecture means there is no per-seat API bill scaling with usage, so personal and small-team workloads do not incur the compounding costs that cloud-hosted agents accumulate over a month. Workspace sidebar surfaces connected messaging services (WhatsApp, Telegram, Discord) alongside local files, so task context from conversations and from your filesystem sit in the same session without switching tools.	Self-hosted by design with a Dockerfile and docker-compose.yml included, so voice data never leaves your infrastructure — teams handling sensitive personal information avoid the compliance questions that come with cloud-dependent assistants. Tool-calling brain chains calendar writes, email sends, web searches, and reminders in a single spoken request, so you are not scripting multi-step workflows manually the way you would with a simple command-dispatch system. Persistent memory across sessions carries user context forward, meaning the assistant does not ask you to re-explain your preferences every conversation the way stateless assistants do. Elixir/Phoenix concurrency handles overlapping I/O stages in the voice pipeline — STT, tool execution, TTS — without blocking, which means response latency stays low even when a tool call takes a moment to return. MIT license with full source access means you can modify the core behavior, swap out underlying models, or strip out capabilities you do not need — without waiting for a vendor roadmap.
Cons	No API is exposed, so Crux cannot be called by another script, scheduled by a cron job, or embedded in a pipeline — any team that needs their agent to run headless or trigger on an event rather than a human shortcut has to choose a different tool entirely. Both Mac and Windows builds carry a beta designation at the time of listing, which means interface changes, file-handling edge cases, and crash recovery are live risks; production workflows that cannot tolerate unscheduled breakage need to wait for a stable release or use an established alternative. The assistant learns context from your local machine only, so the moment a second team member needs the same shared context — the same file history, the same chat memory, the same agent state — there is no sync mechanism described in the vendor's documentation; teams that reach that coordination need will move to a multi-user platform.	The maintainers flag the project as under heavy active development at the top of the README, which means any integration you build against the current API surface is at risk of breaking on the next commit — teams that need a stable deployment skip this until a tagged stable release exists. No API surface is exposed, so if your use case requires another service to trigger the assistant or consume its output programmatically, there is no endpoint to call — teams with that requirement wire up a different tool or build the interface layer themselves from source. The Elixir/Phoenix stack is the whole runtime, not an optional layer — teams without BEAM experience face a steep operational learning curve for debugging, monitoring, and extending the assistant, and when something breaks at 2am the docs assume you already know how Elixir supervision trees work. Zero community pull requests and two stars on the repository at the time of scraping means the bug surface is whatever the maintainers have personally tested — teams evaluating this against a voice assistant with an active contributor base and documented issue resolutions will find nothing equivalent here, and if the project goes dormant, maintenance falls entirely to the fork.

Bottom line

Crux is paid while Orbital PAI is free; Orbital PAI is open source. Choose based on which difference matters most for your workflow.

Frequently asked questions

What is the difference between Crux and Orbital PAI?

Crux is Paid, while Orbital PAI is Free and open source. Compare pricing, free trial, API, platforms, and pros/cons in the table above on AIDiveForge.

Is Crux better than Orbital PAI?

It depends on your workflow. Use the side-by-side attributes (pricing, open source, API, self-hosted, platforms) to decide. AIDiveForge does not rank a universal winner — we publish verified facts so you can choose.