OpenAI API Usage
May 2026
Executive summary of model requests, token consumption, cache usage, model mix, API-key distribution, and daily spikes. Sensitive project/user/API identifiers are masked in the dashboard.
Executive Insights
Daily Token Trend
Daily Request Trend
Model Mix
| Model | Requests | Input | Output | Total | Token Share | Cache Ratio |
|---|---|---|---|---|---|---|
| gpt-5.5-2026-04-23 | 293 | 2.52M | 68.4K | 2.59M | 67.5% of total | 31.5% |
| gpt-5.4-mini-2026-03-17 | 74 | 422.3K | 27.7K | 450.0K | 11.7% of total | 67.0% |
| gpt-4.1-mini-2025-04-14 | 465 | 310.6K | 64.0K | 374.7K | 9.8% of total | 15.9% |
| gpt-5-mini-2025-08-07 | 111 | 107.5K | 31.6K | 139.1K | 3.6% of total | 22.9% |
| gpt-5.4-2026-03-05 | 56 | 85.8K | 7.2K | 93.0K | 2.4% of total | 53.4% |
| gpt-5.1-2025-11-13 | 68 | 42.1K | 6.4K | 48.5K | 1.3% of total | 0.0% |
| gpt-5.4-nano-2026-03-17 | 6 | 46.3K | 2.1K | 48.4K | 1.3% of total | 0.0% |
| gpt-4o-mini-2024-07-18 | 168 | 42.5K | 4.1K | 46.6K | 1.2% of total | 8.1% |
| gpt-4.1-2025-04-14 | 62 | 2.8K | 20.9K | 23.7K | 0.6% of total | 0.0% |
| gpt-4.1-nano-2025-04-14 | 55 | 6.3K | 3.6K | 9.8K | 0.3% of total | 0.0% |
| gpt-3.5-turbo-0125 | 54 | 7.6K | 637 | 8.2K | 0.2% of total | 0.0% |
| gpt-5-pro-2025-10-06 | 1 | 83 | 2.0K | 2.1K | 0.1% of total | 0.0% |
| gpt-4o-2024-08-06 | 16 | 562 | 1.2K | 1.8K | 0.0% of total | 0.0% |
| gpt-5-chat-latest | 1 | 611 | 330 | 941 | 0.0% of total | 0.0% |
Top Usage Days
| Date | Requests | Input | Output | Total | Cache |
|---|---|---|---|---|---|
| 12 May 2026 | 94 | 2.53M | 26.6K | 2.56M | 35.4% |
| 21 May 2026 | 254 | 342.8K | 41.3K | 384.1K | 46.4% |
| 20 May 2026 | 208 | 141.5K | 28.9K | 170.4K | 7.1% |
| 19 May 2026 | 230 | 114.8K | 52.7K | 167.5K | 30.7% |
| 02 May 2026 | 312 | 112.9K | 21.8K | 134.8K | 9.0% |
| 13 May 2026 | 73 | 60.6K | 20.2K | 80.8K | 27.7% |
| 01 May 2026 | 50 | 53.0K | 9.4K | 62.4K | 28.7% |
| 16 May 2026 | 76 | 47.1K | 12.5K | 59.5K | 73.2% |
| 29 May 2026 | 10 | 52.0K | 3.0K | 55.0K | 30.0% |
| 09 May 2026 | 17 | 49.8K | 4.3K | 54.1K | 0.0% |
API Key Distribution
| API Key | Requests | Tokens | Share | Cache |
|---|---|---|---|---|
| key_Vbg4eB…DiAL | 1,404 | 3.73M | 97.3% share | 33.6% |
| key_4veODg…PSiW | 10 | 55.0K | 1.4% share | 30.0% |
| key_tabJc4…uUqk | 9 | 26.5K | 0.7% share | 35.8% |
| key_y7rbJP…9xaQ | 6 | 14.9K | 0.4% share | 0.0% |
| key_b60njZ…r50x | 1 | 7.7K | 0.2% share | 0.0% |
Recommendations
Review the workflows that ran on 12 May 2026. The token spike is large enough to deserve a separate explanation: demo, batch run, long-context test, loop, or accidental repeated call.
Use smaller/mini/nano models for summaries, classification, formatting, and simple Q&A. Reserve the largest model for reasoning-heavy, high-value, or client-facing outputs.
Because one-third of input tokens were cached, standardize reusable system prompts, fixed instructions, and static context blocks to improve repeatability and reduce uncached volume.
Add metadata per request: product, course/event, workflow name, environment, user group, and feature. This will make the next dashboard more business-friendly and easier to map to ROI.
Create separate API keys by environment or product, such as demo, bootcamp, AI Guild, internal tools, and client projects. This will make governance and budget tracking cleaner.
This dashboard intentionally avoids cost estimates because model pricing was not included in the source data. Add a pricing table later to calculate exact blended cost by model.
Daily Detail
| Date | Requests | Input Tokens | Output Tokens | Cached Tokens | Total Tokens |
|---|---|---|---|---|---|
| 01 May 2026 | 50 | 53,022 | 9,385 | 15,232 | 62,407 |
| 02 May 2026 | 312 | 112,913 | 21,837 | 10,112 | 134,750 |
| 03 May 2026 | 0 | 0 | 0 | 0 | 0 |
| 04 May 2026 | 7 | 4,991 | 720 | 1,152 | 5,711 |
| 05 May 2026 | 0 | 0 | 0 | 0 | 0 |
| 06 May 2026 | 0 | 0 | 0 | 0 | 0 |
| 07 May 2026 | 0 | 0 | 0 | 0 | 0 |
| 08 May 2026 | 0 | 0 | 0 | 0 | 0 |
| 09 May 2026 | 17 | 49,763 | 4,338 | 0 | 54,101 |
| 10 May 2026 | 2 | 315 | 136 | 0 | 451 |
| 11 May 2026 | 0 | 0 | 0 | 0 | 0 |
| 12 May 2026 | 94 | 2,530,147 | 26,649 | 895,488 | 2,556,796 |
| 13 May 2026 | 73 | 60,586 | 20,170 | 16,768 | 80,756 |
| 14 May 2026 | 0 | 0 | 0 | 0 | 0 |
| 15 May 2026 | 10 | 6,550 | 1,574 | 0 | 8,124 |
| 16 May 2026 | 76 | 47,055 | 12,478 | 34,432 | 59,533 |
| 17 May 2026 | 4 | 126 | 3,380 | 0 | 3,506 |
| 18 May 2026 | 22 | 17,653 | 2,435 | 3,072 | 20,088 |
| 19 May 2026 | 230 | 114,792 | 52,676 | 35,200 | 167,468 |
| 20 May 2026 | 208 | 141,455 | 28,940 | 10,112 | 170,395 |
| 21 May 2026 | 254 | 342,840 | 41,285 | 158,976 | 384,125 |
| 22 May 2026 | 0 | 0 | 0 | 0 | 0 |
| 23 May 2026 | 7 | 14,302 | 4,463 | 0 | 18,765 |
| 24 May 2026 | 20 | 14,763 | 4,951 | 1,024 | 19,714 |
| 25 May 2026 | 4 | 2,630 | 264 | 0 | 2,894 |
| 26 May 2026 | 3 | 2,021 | 223 | 0 | 2,244 |
| 27 May 2026 | 0 | 0 | 0 | 0 | 0 |
| 28 May 2026 | 1 | 145 | 55 | 0 | 200 |
| 29 May 2026 | 10 | 52,045 | 2,973 | 15,616 | 55,018 |
| 30 May 2026 | 26 | 28,904 | 1,187 | 3,456 | 30,091 |