Plandex vs. Prime Agent

Feature	Plandex	Prime Agent

Tagline	Open source AI coding agent for large projects and real world tasks	Model-agnostic terminal coding agent built on a persistent IPython runtime
Website	https://github.com/plandex-ai/plandex	https://www.primeintellect.ai/blog/prime-agent
Language	go	typescript
Release Date	March 14, 2024	May 8, 2026
Last Updated	August 19, 2026	September 4, 2026
Provider Type	Independent	AI Lab
MCP Support	No	Yes
Multi-Agent Support	No	Yes
Git Integration	deep	basic
Multi-File Editing	No	Yes
Auto Test Running	Yes	No
Sandbox / Permissions	Yes	No
Image / Multimodal Input	No	Yes
Voice Mode	No	No
IDE Integration	None - Terminal only	Zed, VS Code (via ACP)
Hooks / Extensions	No	Yes
Web Search	No	No
Local Model Support	Yes	Yes
Context Window	2M tokens effective	Model-dependent
Supported Models	Any OpenAI-compatible models and 400+ models from OpenRouter.	20+ providers: Claude, GPT, Gemini, Mistral, Groq, Cerebras, xAI, DeepSeek, MiniMax, Xiaomi MiMo, Bedrock, Ollama, vLLM, LM Studio
Supported Subscriptions	—	ChatGPT Claude Code GitHub Copilot
Pricing Model	Free	Free, Subscription, BYOK
Free Tier	Yes	Yes
Price Range	Free (self-hosted)	Free (BYOK)
Source Code Availability	Open Source (MIT)	Open Source (MIT)
Source Code	https://github.com/plandex-ai/plandex	https://github.com/PrimeIntellect-ai/prime-agent
Development State	inactive	active