Praex
AI coding agent running on its own models, in the terminal, desktop and web
What is Praex?
Praex is an AI coding agent that runs on its own post-trained model family (Velox II, Faber II and Lucia II). It reads your repository, proposes edits that you approve, runs your tests and explains each change, from a terminal agent, a desktop app or the web. The terminal agent is an MIT-licensed fork of opencode, and you can also bring your own API keys or models.
Score breakdown (out of 5)
What you would use it for
- →Fixing bugs with tests
- →Explaining unfamiliar code
- →Coding from a terminal or browser
Pros & Cons
👍 Pros
- ✓Free tier with no sign-up for chat
- ✓Works on web, desktop and terminal
- ✓Open-source terminal agent
👎 Cons
- ✗New product (launched October 2026)
- ✗Its own models are not yet independently benchmarked
Key Features
- ✓ Approval-based code edits
- ✓ Runs your test suite
- ✓ Own hosted models plus bring-your-own-key
- ✓ Continue sessions from your phone
- ✓ Open-source CLI
Available on
Praex Pricing
✅ Praex has a free plan - no credit card required to start.
Developer resources
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