Prime Agent vs. Vix

Feature	Prime Agent	Vix

Tagline	Model-agnostic terminal coding agent built on a persistent IPython runtime	Sleek, Fast and Token Efficient AI Coding Agent
Website	https://www.primeintellect.ai/blog/prime-agent	https://getvix.dev
Language	typescript	go
Release Date	May 8, 2026	June 1, 2026
Last Updated	September 4, 2026	August 19, 2026
Provider Type	AI Lab	Independent
MCP Support	Yes	Yes
Multi-Agent Support	Yes	Yes
Git Integration	basic	shallow
Multi-File Editing	Yes	No
Auto Test Running	No	No
Sandbox / Permissions	No	Yes
Image / Multimodal Input	Yes	Yes
Voice Mode	No	No
IDE Integration	Zed, VS Code (via ACP)	N/A
Hooks / Extensions	Yes	Yes
Web Search	No	Yes
Local Model Support	Yes	No
Context Window	Model-dependent	Model-dependent
Terminal Bench 2.0		#1 · 90.0% ±2.1 ²
Supported Models	20+ providers: Claude, GPT, Gemini, Mistral, Groq, Cerebras, xAI, DeepSeek, MiniMax, Xiaomi MiMo, Bedrock, Ollama, vLLM, LM Studio	Anthropic Models (Opus 4.8 / 4.7 / 4.6), OpenAI (GPT-5.1 / o3 / 4o), MiniMax, Xiaomin MiMo and 300+ Models on OpenRouter.
Supported Subscriptions	ChatGPT Claude Code GitHub Copilot	Claude Code ChatGPT
Pricing Model	Free, Subscription, BYOK	Free
Free Tier	Yes	No
Price Range	Free (BYOK)	$0
Source Code Availability	Open Source (MIT)	Open Source (AGPL-3.0)
Source Code	https://github.com/PrimeIntellect-ai/prime-agent	https://github.com/kirby88/vix
Development State	active	active