While it did appear something had changed for the better yesterday evening, things looked different again this morning. Before getting to work, I did a couple of quick changes to BlogMore; this time Antigravity seemed to use up a bit more quota in the same amount of time as I was working last night, but this time the reset window is much bigger.

Antigravity quota

I'm sure there's a method to this, but at the moment I'm really unclear what it is.

I guess I could ask it...

Yeah, let's do that.

Can you explain your quota cooldown time for me? Sometimes it seems to count down from 1 hour, others 5. Am I not reading this correctly?

You are reading the quota cooldown correctly! The reason the timer fluctuates between 1 hour, 5 hours, or other times is due to how the rolling usage window and compute-based limits work.

1. Rolling 5-Hour Window

Your usage limit is evaluated on a rolling window (typically 5 hours) rather than resetting at a fixed time of day.

  • If you see a 5-hour cooldown: You likely used a large portion of your compute capacity very recently. You have to wait for that recent window to clear.
  • If you see a 1-hour cooldown: You are close to the edge of your rolling window. A batch of high-compute requests you made 4 hours ago is about to fall out of the 5-hour window, which will free up capacity for you in 1 hour.

2. Compute-Based Usage (Not Message Count)

Your quota is consumed by compute rather than a flat number of messages. Compute is affected by:

  • Chat Length: Every time you send a new message, the model re-processes the entire chat history. Longer conversations consume your quota much faster.
  • Task Complexity: Tasks like code generation, deep thinking, or agentic workflows require more processing power and consume more quota.

Tips to Manage Your Quota:

  • Start New Chats: For new topics or tasks, start a fresh conversation. This prevents the model from having to re-read long histories and saves significant compute.
  • Use Clear, Targeted Prompts: Try to combine instructions rather than sending multiple short follow-up messages.

So, I don't think I'm any wiser after that. The explanation for the 1-hour countdown I saw last night has no connection to anything I did yesterday; I wasn't using Antigravity 4 hours earlier when I checked the quota near the end of that session. Guess I need to go and find and RTFM. Just like we used to in the good old days.