This is what Codex used to give you
Pick a measured Codex period. The calculator expands the observed limit movement into inferred 5h, weekly, and monthly API-equivalent value.
Measured periods
No official cap table. Just local evidence.
Codex Pro x5 / GPT-5.5 again / Jun 20 to Jun 22
$2,235/mo from $100/mo
Fresh accepted snapshot. Mostly GPT-5.5; no opencode or exec usage was observed in this window.
22.4x
inferred monthly ROI
| Metric | Value | Inferred Full Allowance |
|---|---|---|
| 5-hour window limit | $0.93 / % | $93.14 (100% capacity) |
| Weekly quota limit | $5.59 / % | $559 (100% capacity) |
| Monthly estimated delivery | $2,235 / mo | 22.4x subscription multiplier |