Codex Quota Calculator
Content updated: Sep 15, 2026
Direct answer
The Codex quota calculator answers one question: will your remaining quota last until the next reset? Enter your remaining percentage, reset time and average daily usage — or pull in your tracked quota — to see estimated exhaustion, expected downtime and a safe daily budget.
What the calculator computes
Estimated quota exhaustion (remaining ÷ burn rate), expected downtime (the gap between exhaustion and reset, if any), and a safe daily budget (remaining spread across the days until reset). It also produces a Quota Survival Score — an AI Quota Radar estimate, not an official OpenAI metric.
Example
With 23% remaining, a burn rate of 10% per day and a reset in 4d 3h, exhaustion arrives in about 2d 7h — roughly 1d 20h before the reset. Staying under about 5.6% per day would carry you through.
Frequently Asked Questions
Is there a Codex quota calculator?
Yes — the AI Quota Radar Burn Rate Calculator estimates exhaustion, downtime and a safe daily budget from your remaining quota and usage rate.
What burn rate should I enter?
If you have tracked two or more /status checks, use the auto-computed rate. Otherwise estimate: quota used since your window started divided by days elapsed.
Is the calculator's result exact?
No — it is an estimate based on a constant burn rate. Real usage varies; recalculate as your quota changes.