Antigravity CLI vs. Prime Agent

Feature	Antigravity CLI	Prime Agent

Tagline	Google's coding agent for the terminal, and the replacement for Gemini CLI	Model-agnostic terminal coding agent built on a persistent IPython runtime
Website	https://antigravity.google/product/antigravity-cli	https://www.primeintellect.ai/blog/prime-agent
Language	go	typescript
Release Date	May 19, 2026	May 8, 2026
Last Updated	August 19, 2026	September 4, 2026
Provider Type	AI Lab	AI Lab
MCP Support	Yes	Yes
Multi-Agent Support	Yes	Yes
Git Integration	deep	basic
Multi-File Editing	Yes	Yes
Auto Test Running	Yes	No
Sandbox / Permissions	Yes	No
Image / Multimodal Input	Yes	Yes
Voice Mode	No	No
IDE Integration	Antigravity IDE	Zed, VS Code (via ACP)
Hooks / Extensions	Yes	Yes
Web Search	Yes	No
Local Model Support	No	Yes
Context Window	Model-dependent	Model-dependent
Supported Models	Gemini 3.5 Pro/Flash, Gemini 3.1 Pro, Gemini 3 Flash, Claude Sonnet / Opus 4.7, GPT-OSS-120b	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	Freemium, Subscription, Usage Based, BYOK	Free, Subscription, BYOK
Free Tier	Yes	Yes
Price Range	$0 - $200	Free (BYOK)
Source Code Availability	Proprietary Software	Open Source (MIT)
Source Code	N/A	https://github.com/PrimeIntellect-ai/prime-agent
Development State	active	active