Plandex vs. Vix

Feature	Plandex	Vix

Tagline	Open source AI coding agent for large projects and real world tasks	Sleek, Fast and Token Efficient AI Coding Agent
Website	https://plandex.ai	https://getvix.dev
Language	go	go
Release Date	March 14, 2024	June 1, 2026
Last Updated	April 28, 2026	June 4, 2026
Provider Type	Independent	Independent
MCP Support	No	Yes
Multi-Agent Support	No	Yes
Git Integration	deep	shallow
Multi-File Editing	No	No
Auto Test Running	Yes	No
Sandbox / Permissions	Yes	Yes
Image / Multimodal Input	No	Yes
Voice Mode	No	No
IDE Integration	None - terminal only	N/A
Hooks / Extensions	No	Yes
Web Search	No	Yes
Local Model Support	Yes	No
Context Window	2M tokens effective	Model Dependent
Terminal Bench 2.0		#1 · 90.0% ±2.1 ²
Supported Models	Any OpenAI-compatible models and 400+ models from OpenRouter.	Anthropic Models (Opus 4.8 / 4.7 / 4.6), OpenAI (GPT-5.1 / o3 / 4o), MiniMax, Xiaomin MiMo and 300+ Models on OpenRouter.
Pricing Model	Free	$0
Free Tier	Yes	No
Price Range	Free (self-hosted)	$0
Source Code Availability	Open Source (MIT)	Open Source (AGPL-3.0)
Source Code	https://github.com/plandex-ai/plandex	https://github.com/kirby88/vix
Development State	active	active