Codex Quota Observatory
Measurements to help you understand what Codex quotas can do.
The project
The project at a glance.
Compare quota usage and output speed measured in real Codex sessions. The simulator estimates how long a quota could last at different usage rates, while a cost comparison shows the API equivalent. Dates, samples and assumptions are available to inspect. These observations do not guarantee what another account will receive. An independent project, not affiliated with OpenAI.
Features
How it works.
Measured usage
Compare observed tokens with quota usage. Results include dates, value ranges and sample sizes.
Quota duration simulator
Compare usage rates and numbers of parallel tasks to estimate how long a full quota could last.
Observed speed
See output tokens relative to the full duration of completed tasks, including reasoning, tool use and network time.
Public reset archive
Browse confirmed public resets and banked quota grants, with their UTC timestamps.
API value comparison
Compare the cost of the same token workload under different API rate cards. Adjust the subscription price and inspect the calculation assumptions.
Screenshots
A look inside.
Open the screenshots for a closer look.
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