Praex

AI coding agent that runs on its own model family (Velox II free, Faber II on Pro) instead of a third-party API. Use it in the terminal, a desktop app or the browser and continue a session from your phone; it reads your repo, edits, and runs your tests. The terminal agent is an open-source (MIT) fork of opencode, and you can bring your own keys to run it on any model for free.

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Pricing

Model
freemium
Starting price
$20/mo
Source
Pricing page ↗

Niches

⚡ Vibe Coding

Best for

Use a coding agent from the terminal

▸ Open-source terminal agent with a free in-house model every day, plus your own keys if you prefer, and sessions you can steer from your phone.

Praex alternatives

Other tools we list for the same jobs, closest match first.

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Gemini CLI

Google's open-source AI agent for the terminal.

free (open source)

Amp

Frontier coding agent and environment (spun out of Sourcegraph) with unattended runs in cloud "orbs".

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Factory

Agent-native development with 'Droids' that automate coding, testing and deployment.

paid, from $20/mo

Aider

Open-source AI pair programming in your terminal with git integration.

free (open source)

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