Gemini CLI, Antigravity, or the API: Choosing Google's Agent

Gemini CLI: still shipping, for a narrower audience

Gemini CLI is Google's open-source terminal agent, and it still ships: v0.68.0 landed on November 10, 2026. What changed is who it's for. Its README says free individual access and Google AI Pro and Ultra subscriptions "moved to Antigravity CLI on June 18, 2026." Gemini CLI is now designed for Gemini Code Assist Standard and Enterprise licenses and Code Assist for GitHub on Google Cloud, where existing access is unchanged, and the README says it's "Not tuned for the Gemini 4 series."

On a personal Google account, move to agy. The migration is light. GEMINI.md and AGENTS.md work unchanged, and ~/.gemini/GEMINI.md is still read. Extensions become plugins; the migration guide's command is agy plugin import gemini. MCP servers move out of ~/.gemini/settings.json into a standalone mcp_config.json, where a remote server's URL key becomes serverUrl. Workspace skills move from .gemini/skills/ to .agents/skills/.

Jules: winding down

Jules, Google's asynchronous cloud coding agent, is shutting down. Google's notice of October 29, 2026 let sessions continue until November 11, made Jules read-only until the end of the year, and says "Jules will wind down on December 31, 2026." The notice says its lessons are shaping Google products, "including our agent-first platform, Google Antigravity." Export before the deadline. Jules Tools exports your settings, scheduled tasks, connected repositories, memories, setup scripts and every session to a local folder, while your code, branches and pull requests stay in GitHub. The export includes your environment variables with their secret values, so keep that folder private.

The closest thing to Jules inside Antigravity is remote agents: sessions that run in an isolated, Google-managed environment and keep working when your laptop sleeps. As of November 2026 they're rolling out gradually to Google AI Pro and Ultra subscribers on personal accounts. Start one from a New Remote Project in the App, or with agy --remote-agent on CLI 1.4.12 or later. Remote sessions can't see your local files, so you attach repositories to the remote project.

Building agents into your own product

Two options exist for agents that run inside your code rather than in your editor: the Antigravity SDK, a Python library on the same harness as the App, and the managed Antigravity agent on the Gemini API. Both are as documented in November 2026.

# pip install google-antigravity   (Python 3.10+)
# export GEMINI_API_KEY="your_api_key_here"
import asyncio
from google.antigravity import Agent, LocalAgentConfig

async def main():
    config = LocalAgentConfig()
    async with Agent(config) as agent:
        response = await agent.chat("What files are in the current directory?")
        print(await response.text())

if __name__ == "__main__":
    asyncio.run(main())