If you've subscribed to Google AI Pro [1] (or are eyeing an upgrade), you've probably noticed the word "credits" appearing everywhere — in your billing dashboard, in the Gemini app, and inside your code editor [5]. But what are they? How do they reset? And if your family is on the plan, who's burning through them? [3]
I spent an afternoon untangling this, and the short version is: Google doesn't have one quota system — it has three, each resetting on a different clock. Here's how it all works.
The Three Clocks
The single biggest source of confusion with Google AI Pro is that there are three independent limits running simultaneously, each with its own reset schedule:
| Timer | What Resets? | Applies To |
|---|---|---|
| Monthly | 1,000 AI Credits | Video / 4K Images / IDE Overages |
| Weekly | Antigravity Baseline Quota | "Free" high-tier usage in Antigravity |
| Daily | Prompt & Media Limits | Chat (Thinking/Pro), Images, Music |
Understanding which "fuel tank" you're drawing from at any given moment is the key to not running dry at the wrong time.
Monthly AI Credits (The 1,000 Pool)
When you subscribe to AI Pro, Google allocates 1,000 AI Credits [1] at the start of each billing cycle. These are the credits you see in your Google One dashboard with a countdown showing days until reset.
Key facts:
- No rollover. If you have 380 credits left with 10 days to go, those 380 vanish on your billing date [1]. You start fresh at 1,000.
- These are for premium "heavy" tasks. High-end video generation (Google Flow/Veo 3.1) [4], advanced image creation (Imagen 4 / Nano Banana 2), and IDE overage billing all draw from this pool.
- Standard tasks are free. Typing prompts into the Gemini app, generating standard images (Gemini / Imagen 4), and basic music tracks (Lyria 3) do not consume monthly credits up to their daily limits [4].
The Top-Up Exception: If you manually purchase a "Top-up" credit pack, those purchased credits are typically valid for 12 months from the date of purchase and do carry over across billing cycles [1]. Only your subscription credits are use-it-or-lose-it.
What Can You Buy With Credits?
Here are the standard costs for premium generation (2026 pricing) [2, 6]:
| Feature | Credit Cost (Approx.) | What 380 credits buys you |
|---|---|---|
| Nano Banana 2 (Imagen 4) | 1 | ~380 high-res assets |
| Veo 3.1 Fast (via Flow) | 10 | ~38 cinematic clips |
| Veo 3.1 Quality (via Flow) | 100 | ~3 cinematic clips |
| IDE Overage (per hour)* | 15 | ~25 hours of high-tier use |
*Approximation based on typical token consumption in Antigravity.
Tip: If you're close to the end of your billing month with credits to spare, it's the perfect time for high-resolution 4K image generation or experimental Veo video clips. They won't cost you anything "extra" once the new month starts.
Antigravity Weekly Baseline Quota (The IDE Clock)
If you use Google Antigravity (the AI-powered code editor), you'll notice a separate "refresh date" in your settings. This date is typically different from your monthly credit reset.
What it is: Google gives AI Pro users a "Free Baseline" of high-performance model usage (Gemini 3.1 Pro, Claude 4.6 Sonnet, etc.) within Antigravity every week [5, 6].
Key facts:
- 5-Hour Sprints: Your immediate capacity refreshes every 5 hours [5].
- 7-Day Hard Cap: There is a weekly baseline limit. If you exhaust this, the 5-hour refresh stops working until your next 7-day reset (the "refresh date" you see) [5].
- This quota is individual — each account on your family plan has its own personal IDE baseline.
The Overage Toggle
In Antigravity settings, the "Use AI Credits for Overages" toggle lets you decide what happens when your weekly baseline runs out:
- ON: Antigravity draws from your monthly 1,000-credit pool to keep you coding at full speed.
- OFF: You're limited to the "Flash" model until the weekly refresh hits.
Daily Quotas (Chat, Music, and Deep Research)
Finally, your day-to-day interactions have their own daily caps that reset at midnight Pacific Time. These never touch your 1,000 monthly credits:
| Feature | Limit Per Day |
|---|---|
| Thinking Model Chat | 300 prompts |
| Pro Model Chat | 100 prompts |
| Nano Banana 2 (Std) | 1,000 images |
| Lyria 3 (Music) | 50 tracks [4] |
| Deep Research Reports | 3 reports |
Family Plans: What's Shared, What's Not
| Feature | Shared with Family? | Reset Cadence |
|---|---|---|
| 1,000 AI Credits | Yes [3] (shared pool) | Monthly |
| 2 TB Storage | Yes [1] (shared pool) | Monthly |
| Daily Interaction Limits | No (individual) | Daily |
| Antigravity Baseline | No [5] (individual) | Weekly |
The Credits are the only shared fuel. If your family member generates a few Veo 3.1 videos, they are spending from the same 1,000-credit bucket you use for your IDE overages [3]. You can monitor this in the Google One → AI Credits Activity dashboard.
Important: Family members must be 18+ for high-tier model access. Under-18 accounts are restricted to Gemini Basic.
References
- Google One AI Pro: Membership Overview - Plan pricing and 1,000 credit allocation.
- Google One - AI Credits Pricing (2026) - Details on credit reset and top-ups.
- Google One Help - Managing Family AI Credit Activity - Shared pool tracking and activity history.
- Google Cloud - Expanding AI Creativity with Google Flow and Veo 3.1 - Media generation models and limits.
- Google DeepMind - Antigravity IDE Baseline Quota Framework - 5-hour refresh and weekly baseline rules.
- Anthropic - Claude Sonnet 4.6 on Google Cloud Vertex AI - February 2026 release news.
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