# AssemblyAI in September 2026: incidents, uptime and changes

> AssemblyAI in September 2026: 3 incidents on its status page (1 major or critical), 99.82% free of major or critical incidents (vendor-reported), 1 deprecation. From Rewindex’s archive of AssemblyAI’s status, pricing and policy pages.

Canonical: https://rewindex.com/company/assemblyai/2026/09
Last updated: 2026-10-16T04:00:00Z

- Incidents posted: 3 (major/critical: 1) · Maintenance: 0
- By vendor impact label: critical 1, minor 1, none 1
- Uptime (vendor-reported): 99.82% free of major/critical incidents, 99.75% free of any incident; outage time 1 h 15 min, incident time 1 h 46 min
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 1 · CVEs: 0
- Previous month: [August 2026](https://rewindex.com/company/assemblyai/2026/08.md) · Next: [October 2026](https://rewindex.com/company/assemblyai/2026/10.md) · [All months](https://rewindex.com/company/assemblyai/reports.md) · [AssemblyAI](https://rewindex.com/company/assemblyai.md)

_Uptime: Derived from the incidents the vendor posted on its own status page, not measured by us. A minute counts as an outage minute when a major or critical incident (as the vendor labelled it) was open; incident minutes include minor ones too. Maintenance and incidents marked "no impact" are left out, overlapping incidents are merged, a resolved incident counts for at most 7 days, and one still open with no resolution counts for at most 24 hours._

## Major and critical incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Outage on US Async Endpoint](https://rewindex.com/company/assemblyai/incidents/jfgvq10x906m.md) | critical | 2026-09-16 20:22 UTC | 2026-09-16 21:37 UTC | 1.3 h | postmortem |

## All incidents

| Incident | Impact (vendor label) | Started (UTC) | Resolved (UTC) | Duration | Status |
| --- | --- | --- | --- | --- | --- |
| [Elevated turnaround times for async transcription](https://rewindex.com/company/assemblyai/incidents/qmqsf2bvtv42.md) | none | 2026-09-14 01:27 UTC | 2026-09-13 23:30 UTC | -118 min | resolved |
| [Outage on US Async Endpoint](https://rewindex.com/company/assemblyai/incidents/jfgvq10x906m.md) | critical | 2026-09-16 20:22 UTC | 2026-09-16 21:37 UTC | 1.3 h | postmortem |
| [Increased turnaround times for Async Universal-3 model](https://rewindex.com/company/assemblyai/incidents/9g4nn987czlk.md) | minor | 2026-09-28 17:27 UTC | 2026-09-28 17:58 UTC | 31 min | resolved |

## Deprecations and commercial changes

- [Async summarization/auto\_chapters params stop working (400)](https://deadcanary.io/event/assemblyai-async-summarization-auto-chapters-params-stop-working-400-53c6/) (Async summarization/auto\_chapters params stop working (400)): announced n/a, effective 2026-09-15

## Cite this

AssemblyAI posted 3 status incidents in September 2026 (1 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/assemblyai/2026/09
- Citation: AssemblyAI, “AssemblyAI in September 2026” (2026-09-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/assemblyai/2026/09 (CC BY 4.0).
- Markdown link: `[AssemblyAI: AssemblyAI in September 2026 (2026-09-01)](https://rewindex.com/company/assemblyai/2026/09)`


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Canonical: https://rewindex.com/company/assemblyai/2026/09 · Markdown: https://rewindex.com/company/assemblyai/2026/09.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T12:53:38.102Z