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batchwatchOutage archive › OpenAI gpt-5-nano (batch)

OpenAI gpt-5-nano batch outage, 2026-08-28

A batch API outage on OpenAI gpt-5-nano, measured end to end — 16 hours from start to recovery.

What we measured
16 hours
Recovered after 16 hours.
ProviderOpenAI
Started2026-08-28
Duration16 hours

The evidence

Caught by batchwatch’s own probes: a run of batch jobs that stopped completing on a model we watch directly.

Recovered after 16 hours.

The record

ProviderOpenAI
Modelgpt-5-nano
Started2026-08-28T02:00:05.000Z
Ended2026-08-28T17:31:01.000Z
Duration16 hours
Measurements behind it60

This is a measurement of queue time — how long batch jobs actually waited — not a statement from OpenAI. batchwatch reports an outage only when a majority of established contributors, or our own probes, see the same slowdown at once. The full history is available as JSON and Atom.