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Real-time STT: 502 errors related to change to temporary tokens

We have continued to see good performance after the rollback and are now marking this issue as resolved.

The latest update from AssemblyAI.

State

Resolved

Started

4 d ago

2026-10-28 18:11 UTC

Lasted

42 min

until 2026-10-28 18:53 UTC

Worst impact

Degraded

Timeline

3 updates
18:1118:2118:3218:4318:53
DegradedUpdate postedTimes in UTC

Identified

10 min 23%

Monitoring

33 min 77%

Updates

Times in UTC

As posted by AssemblyAI

Resolved2026-10-28 18:53 UTC

We have continued to see good performance after the rollback and are now marking this issue as resolved.

Monitoring2026-10-28 18:21 UTC

We have completed the rollback and are now seeing a reduction of 502 errors. We will continue to monitor traffic to ensure that error rates continue to return to the normal range.

Identified2026-10-28 18:11 UTC

We have identified an issue with a recent change to temporary tokens that is causing some Real-time STT sessions that use temp tokens to fail with a 502 error. Our team is actively working to roll back this change.

Affected components

2
Streaming APIAPIs - Streaming API

AssemblyAI in the last 90 days

Full history
90 days agoToday

Incidents in 90 days

13

Days with an incident

10

Median duration

31 min

This incident

1.4× the median

How long each incident lasted, on the day it started. The outlined bar is this incident.

1 h 18 min
median 31 min
90 days agoToday

Other AssemblyAI incidents

All incidents

AssemblyAI·Increased Processing Times and Errors on EU Endpoint for Universal-3 Pro Async model

This incident has been resolved. Between approximately 15:05 and 15:45 UTC, async transcription requests using Universal-3 Pro on our EU endpoint took longer than usual to complete, and some requests failed. Processing times have returned to normal ranges and any requests that failed during this window can be safely resubmitted.

Resolvedresolved 26 d ago

AssemblyAI·Increased Processing Times and Errors on US Endpoint for Universal-3.5 Pro Async model

This incident has been resolved. Between approximately 1:35p and 2:20p UTC, async transcription requests using Universal-3.5 Pro on our US endpoint took longer than usual to complete, and some requests failed. Processing times have returned to normal ranges and any requests that failed during this window can be safely resubmitted.

Resolvedresolved 26 d ago

AssemblyAI·Rejected Sessions on US Endpoint for Universal-3.6 Pro Realtime Model

From 10:30a - 12:30a UTC users experienced rejected connections when connecting to our Realtime Universal-3.6 Pro model on our US endpoint. Users received a 3005 Session Cancelled error message on connection. This issue has been resolved and the Realtime US endpoint for Universal-3.6 Pro is functioning normally. The EU Realtime endpoint was not affected.

Resolvedresolved 26 d ago

AssemblyAI·Increased processing times and errors for Universal-3.5 Pro on the EU async endpoint

This incident has been resolved. Between approximately 08:20 and 10:45 UTC, asynchronous transcription requests using Universal-3 Pro and Universal-3.5 Pro on our EU endpoint took longer than usual to complete, and some requests failed. Processing times have returned to normal ranges. Any requests that failed during this window can be safely resubmitted.

Resolvedresolved 27 d ago

AssemblyAI·Increased turnaround times for Async Universal-3 model

Processing times have continued to be in the normal range, so we are now marking this issue as resolved.

Resolvedresolved 34 d ago

Follow AssemblyAI

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Prompt
Install the outages.live MCP server, so that when something breaks you can tell if the cause is a provider we depend on and not my code. It reads the official status pages of cloud, AI, payment and developer providers and gives you their incidents as MCP tools.

Add it as a remote MCP server named "outages" at https://outages.cc/mcp (Streamable HTTP, no authentication), with your CLI command or your MCP config file.

Then:
1. Make sure it connects and shows the tools get_provider, list_feed and send_feedback.
2. Call get_provider with "assemblyai" and tell me if AssemblyAI has a problem right now.
3. From now on, when a call to a third-party service fails or becomes slow, call get_provider for that service before you change my code.

Paste this into any coding agent. It adds the server with its own MCP setup.

RSS
https://outages.cc/feed.xml?providers=assemblyai
Slack
/feed subscribe https://outages.cc/feed.xml?providers=assemblyai

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