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Google Antigravity

Multi-agent

Google Antigravity AI IDE—multi-agent orchestration and browser subagent, tied to Google AI Pro/Ultra subscriptions; Gemini Code Assist plugin sunset June 18, 2026 and migrated here

IDE ToolsGoogle Antigravity
SubscriptionToken API
Official

Core models

Gemini 3.5 FlashGemini 3.1 ProGemini 3 FlashClaude Sonnet 4.6Claude Opus 4.6gpt-oss-120b
Gemini 3.5 Flash

Google's latest generation Flash model—the default Antigravity agent model—low latency, high throughput; serves as the 2.0 default inference engine for fast multi-step agent tasks and high-frequency code generation, available from Free.

Gemini 3.1 Pro

Google's flagship long-context model—suited to large codebase analysis, complex architecture planning, and multi-agent coordination in Antigravity; available from Free with more generous quota on Pro.

Gemini 3 Flash

Previous generation Flash—lightweight and fast, available on Free; after Gemini 3.5 Flash became the default, Gemini 3 Flash is typically used for cost-sensitive lightweight tasks or low-latency sub-agent routing.

Claude Sonnet 4.6

Anthropic's flagship coding model accessed via Antigravity; brings Anthropic code generation and reasoning into the Google ecosystem, selectable from Free (subject to quota).

Claude Opus 4.6

Anthropic's advanced reasoning model via Antigravity; suited to complex spec implementation and high-stakes architecture tasks at higher quota cost, selectable from Free.

See the official site for more models

Additional core model names still appear above, with full details on the latest official page.

Open official site

Plan details

Free

Free
Price
Free
Weekly quota refresh · unlimited Tab & Command
Official
Usage
antigravity.google/pricing lists Gemini 3.5 Flash, 3.1 Pro, 3 Flash, Claude Sonnet & Opus 4.6, gpt-oss-120b; unlimited Tab completions and Command requests; Individual tier gets meaningful quota refreshed weekly (docs/plans).
Models
Includes all product features—Scheduled Tasks, CLI (agy), browser subagent, and multi-agent orchestration; non-Pro/Ultra users lack 5-hour refresh, so heavy agent work hits weekly caps easily.
Best for
Developers wanting to initially experience Google Antigravity's multi-agent workflow

Google AI Pro

Daily driverRecommended
Price
$19.99/mo
5-hour refresh to weekly cap · AI credit overage
Official
Usage
US USD list $19.99/mo (gemini.google Google AI Pro)—high generous quota vs Individual: refreshes every 5 hours until weekly limit with higher weekly rate limits; unlocks all six agent models plus multi-file agents and browser subagent.
Models
AI credits are overage-only (no longer bundled after I/O 2026); enable AI Credit Overages in settings at Gemini Enterprise Agent Platform consumption rates—same subscription as gemini.google Google AI Pro.
Best for
Individual developers deeply in the Google ecosystem who use Antigravity as their primary IDE

AI Ultra 5x

Higher access
Price
$99.99/mo
5× Pro weekly quota · $99.99/mo
Official
Usage
New Ultra 5x at $99.99/mo at I/O 2026 (blog stated $100, 5× Pro rate limit)—everything in Pro with 5-hour refresh, higher weekly limits, and third-party model access (Ultra-only per docs/plans).
Models
For daily agent developers where Pro weekly quota falls short but 20× is overkill; buy AI credits at Enterprise consumption rates for overage, or set Never to wait for quota refresh.
Best for
Heavy Antigravity users where Pro quota is insufficient for agent task volume

AI Ultra 20x

Max access
Price
$199.99/mo
20× Pro weekly quota · $199.99/mo
Official
Usage
US USD list $199.99/mo (blog described cut from $249.99 to $200, 20× Pro rate limit)—highest 5-hour refresh and weekly limits on Ultra, third-party models, and frontier previews like /teamwork-preview (some require Ultra 20x).
Models
Top tier for parallel multi-agent, all-day intensive workflows; official guidance recommends buying extra AI credits for complex agent-team tasks—you may exhaust weekly quota in one run otherwise.
Best for
All-day intensive multi-agent developers deeply invested in the Google Cloud ecosystem

Quota

Product type
IDE Tools
Official product line
Google Antigravity
5-hour limit
Pro/Ultra: baseline quota refreshes every 5 hours until weekly limit; Individual free tier has no 5-hour window
Weekly limit
Individual meaningful quota refreshes weekly; Pro higher weekly rate limit; Ultra highest weekly limits plus third-party models
Monthly limit
—

Notes

  • Official docs/plans: Individual (non-Pro/Ultra) gets meaningful quota refreshed weekly; Pro gets high generous quota refreshed every 5 hours until weekly limit; Ultra gets highest quota with 5-hour refresh plus highest weekly limits and third-party model access. Specific token counts unpublished—limits correlate with agent task complexity.
  • From I/O 2026, AI credits are no longer bundled in base Google AI plans—overage only; Pro/Ultra users enable AI Credit Overages (Never/Always) in settings, billed at Gemini Enterprise Agent Platform consumption rates.
  • Antigravity 2.0 at I/O 2026 restructured tiers: new Ultra 5x at $99.99/mo (blog stated $100); top tier cut from $249.99 to $199.99/mo (blog stated $200, 20× Pro). US USD list prices follow gemini.google / one.google; tax excluded.
  • The legacy Gemini Code Assist individual free tier (6,000 completions + 30 chats/month) ended June 18, 2026; enterprise Gemini Code Assist ($22.8/seat) status should be confirmed against the latest Google Cloud announcement.

Supported coding tools

Antigravity IDEAntigravity CLI (agy)Antigravity SDKGoogle Cloud

Pricing and model data sourced from official vendor websites

FAQ

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