OpenAI Decisions API slowdown on 25 October 2026
OpenAI Decisions API full response from Mumbai, Montreal: slower than usual; 2026-10-25 21:30 UTC onwards: peak full response 531 ms vs a usual 344 ms.
- What our checks saw
- Slower than usual
- Cities affected
- Mumbai, Montreal
- When
- , still ongoing at our last check
- How long
- about an hour so far
- Slowest check
- 531 ms, usually 344 ms
- OpenAI's status page
- Open it
Where our checks saw it
Each glowing city had slow or failing checks during the incident, shown at its worst. We test from 6 cities, so other places may have been hit too.
Our checks, city by city
Each point is one check every 30 minutes, from three hours before the incident to three hours after. Coloured points are the checks we counted as slower or failing. The shaded area shows how far above the usual time they were. Not affected: Amsterdam, San Francisco, Singapore, Tokyo.
Montreal
Every check as a table
| Time (UTC) | Check | Reading |
|---|---|---|
| 18:30 | 200 ms | Normal |
| 19:00 | 166 ms | Normal |
| 19:30 | 186 ms | Normal |
| 20:00 | 209 ms | Normal |
| 20:30 | 372 ms | Slower than usual |
| 21:00 | 209 ms | Normal |
| 21:30 | 372 ms | Slower than usual |
| 22:00 | 241 ms | Normal |
| 22:30 | 161 ms | Normal |
Mumbai
Every check as a table
| Time (UTC) | Check | Reading |
|---|---|---|
| 18:30 | 125 ms | Normal |
| 19:00 | 306 ms | Normal |
| 19:30 | 111 ms | Normal |
| 20:00 | 778 ms | Slower than usual |
| 20:30 | 928 ms | Much slower, or failing |
| 21:00 | 943 ms | Much slower, or failing |
| 21:30 | 118 ms | Normal |
| 22:00 | 119 ms | Normal |
| 22:30 | 122 ms | Normal |
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