CodexUsage is a Codex skill for reporting local Codex token usage and estimated spend. It shows totals by model and by month, including cached input, output, reasoning, unknown tokens, and estimated dollar cost if you used the OpenAI API instead.
npm i -g @attune-js/codex-usage
codex-usage install-skillRun the report directly with:
codex-usageGenerated: 2026-06-05T20:05:28.038Z Sessions: 29 (2 scanned, 27 cached) Total tokens: 3,461,427,128 Estimated cost: $2,720.2667
| Model | Sessions | Events | Input | Cached | Output | Reasoning | Unknown | Total | Cost |
|---|---|---|---|---|---|---|---|---|---|
| openai/gpt-5.5 | 25 | 21,538 | 3,148,415,650 | 3,041,851,520 | 8,424,619 | 2,678,761 | 60,267,111 | 3,217,107,380 | $2,607.8205 |
| openai/gpt-5.4 | 7 | 1,659 | 238,739,623 | 226,616,576 | 930,256 | 420,166 | 4,583,787 | 244,253,666 | $112.3751 |
| openai/gpt-5.4-mini | 1 | 2 | 0 | 0 | 0 | 0 | 35,581 | 35,581 | $0.0267 |
| Month | Sessions | Models | Events | Input | Cached | Output | Reasoning | Unknown | Total | Cost |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05 | 22 | 4 | 12,970 | 1,861,065,591 | 1,794,173,312 | 5,118,528 | 1,666,522 | 39,208,005 | 1,905,392,124 | $1,534.6552 |
| 2026-06 | 9 | 2 | 10,230 | 1,526,119,961 | 1,474,302,208 | 4,236,569 | 1,432,607 | 25,678,474 | 1,556,035,004 | $1,185.6115 |