Antigravity Provider

Access Google's IDE backend (Antigravity) for Gemini 3 and Claude models through Google infrastructure. Uses Google OAuth for authentication with multi-account rotation support.

Provider Name	`antigravity`
Module	`shared.plugins.model_provider.antigravity`
Auth	Google OAuth
Quotas	`antigravity`, `gemini-cli`

Features

Access to Gemini 3 preview models
Claude via Google infrastructure
Multi-account rotation for quota management
Extended thinking support
Function calling

Experimental

This provider uses an unofficial Google API. Model availability and features may change without notice.

Quick start

from jaato import JaatoClient

client = JaatoClient(provider_name="antigravity")
client.connect(None, None, "antigravity-gemini-3-pro")

# Login with Google OAuth
client.verify_auth(allow_interactive=True)

client.configure_tools(registry)

response = client.send_message(
    "Hello from Gemini 3!",
    on_output=on_output
)

Available Models

Antigravity Quota

Model	Description
`antigravity-gemini-3-pro`	Gemini 3 Pro (preview)
`antigravity-gemini-3-flash`	Gemini 3 Flash (preview)
`antigravity-claude-sonnet-4-5`	Claude Sonnet 4.5 via Google
`antigravity-claude-sonnet-4-5-thinking`	Claude Sonnet 4.5 with thinking

Gemini CLI Quota

Model	Description
`gemini-2.5-flash`	Gemini 2.5 Flash
`gemini-2.5-pro`	Gemini 2.5 Pro
`gemini-3-flash-preview`	Gemini 3 Flash preview
`gemini-3-pro-preview`	Gemini 3 Pro preview

Model selection

# Gemini 3 (antigravity quota)
client.connect(None, None, "antigravity-gemini-3-pro")

# Claude via Google
client.connect(None, None, "antigravity-claude-sonnet-4-5")

# Gemini 2.5 (gemini-cli quota)
client.connect(None, None, "gemini-2.5-flash")

Configuration

Environment Variables

Variable	Default	Description
`JAATO_ANTIGRAVITY_QUOTA`	`antigravity`	Quota type: `antigravity` or `gemini-cli`
`JAATO_ANTIGRAVITY_THINKING_LEVEL`	-	Gemini 3 thinking: `minimal`, `low`, `medium`, `high`
`JAATO_ANTIGRAVITY_THINKING_BUDGET`	8192	Claude thinking budget
`JAATO_ANTIGRAVITY_AUTO_ROTATE`	`true`	Enable multi-account rotation

Environment configuration

# .env file
JAATO_PROVIDER=antigravity
JAATO_ANTIGRAVITY_QUOTA=antigravity
JAATO_ANTIGRAVITY_THINKING_LEVEL=medium
JAATO_ANTIGRAVITY_AUTO_ROTATE=true

Authentication

Antigravity uses Google OAuth. The provider can manage multiple Google accounts and automatically rotate between them to maximize available quota.

OAuth Flow

Call oauth_login() or verify_auth(allow_interactive=True)
Browser opens to Google login
Authorize the application
Credentials saved locally

Multi-Account Rotation

With JAATO_ANTIGRAVITY_AUTO_ROTATE=true, the provider automatically switches between authenticated accounts when quota is exhausted.

OAuth login

from shared.plugins.model_provider.antigravity import oauth_login

# Login with Google
oauth_login(on_message=lambda msg: print(msg))

# Or via JaatoClient
client = JaatoClient(provider_name="antigravity")
client.connect(None, None, "antigravity-gemini-3-pro")
client.verify_auth(allow_interactive=True)

Add additional account

# Login with another Google account
oauth_login(on_message=lambda msg: print(msg))
# Opens browser for new account

# Provider will now rotate between accounts

Thinking Mode

Both Gemini 3 and Claude models support extended thinking through this provider, with different configuration options.

Gemini 3 Thinking Levels

Level	Description
`minimal`	Fastest, least reasoning
`low`	Light reasoning
`medium`	Balanced
`high`	Most thorough

Claude Thinking

Claude models use a token budget for thinking, configured via JAATO_ANTIGRAVITY_THINKING_BUDGET.

Configure thinking

# Gemini 3 thinking level
JAATO_ANTIGRAVITY_THINKING_LEVEL=high

# Claude thinking budget
JAATO_ANTIGRAVITY_THINKING_BUDGET=16000

Runtime configuration

from jaato_sdk.plugins.model_provider.types import ThinkingConfig

if client.supports_thinking():
    client.set_thinking_config(ThinkingConfig(
        enabled=True,
        budget=16000
    ))