Praex vs Quello: Features, Pricing & Which Is Better (2026)

A side-by-side comparison of Praex and Quello — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.

Praex

Freemium

Open-source AI coding copartner with its own Velox, Faber and Lucia models, available in terminal, mobile and web.

Own Model Family: Velox II, Faber II and Lucia II are tuned and served by Praex on its own infrastructure, sized from quick edits to frontier-scale problems.
Terminal CLI: Install with a one-line script and let the agent read files, run commands, edit code and verify tests directly in your terminal.
Cross-Device Sessions: Start a task in the terminal, steer it from your phone and review it on the web with the same agent, memory and session.
Bring Your Own Keys: Run Praex on any model with your own API keys or hardware at no extra cost.
Open-Source Core: The CLI is an MIT-licensed fork of opencode, so the agent harness can be inspected and modified.
No Sign-Up Chat: Start chatting on the web with the free Velox II model without creating an account.

Fixing Failing Builds: Hand the agent a broken deploy and let it read configs, run tests and patch source until tests pass.
Everyday Quick Edits: Use the free Velox II model for instant answers and small code changes in the terminal.
Deep Reasoning Tasks: Escalate to Faber II on Pro for complex coding and multi-step reasoning.
Mobile Task Steering: Kick off a refactor at your desk and monitor or redirect it from your phone.
Self-Hosted Workflows: Point the CLI at your own models or keys to keep code on infrastructure you control.

Freemium

Workspace that connects your docs, Notion, Drive and GitHub so you can ask questions and get answers cited to exact passages.

Cross-Source Q&A: Ask one question across PDFs, Notion, Google Drive and GitHub repositories.
Cited Answers: Each response links to the exact source passage in one click.
Voice and Chat Input: Type or speak questions, and use @ to scope them to one file.
Connectors: Sync and keep documents and tools up to date automatically.
MCP Server: Use your workspace from Claude, ChatGPT, Perplexity and other AI apps.
Studio and Assets: Write and edit documents in the same workspace.

Onboarding: Producing a day-one setup guide from team docs.
Decision Recaps: Summarizing decisions and next steps across sources.
Conflict Detection: Spotting conflicting information between documents.
Codebase Questions: Inspecting repositories and finding the latest file version.
Compliance Checks: Reviewing access and retention details with cited evidence.