Outage in AssemblyAI

Slam-1 requests not completing successfully

Resolved Major
August 05, 2025 - Started 3 months ago - Lasted about 8 hours
Official incident page

Incident Report

We are currently investigating an issue with Slam-1 that is preventing the successful completion of transcription requests using the model. We will share additional information as it becomes available. Please note this issue is only affecting requests using Slam-1 as the `speech_model`. Universal is unaffected.
Components affected
AssemblyAI Asynchronous API

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Latest Updates ( sorted recent to last )
RESOLVED 2 months ago - at 08/05/2025 11:15PM

We have continued to see good performance for the last ~6 hours so we are marking this issue as resolved.

To prevent future issues, we have made some improvements to allow Slam-1 to scale more effectively.

MONITORING 2 months ago - at 08/05/2025 07:38PM

We have continued to see good performance with no instances of increased errors over the last couple of hours ,but are continuing to monitor to ensure there are no further issues.

IDENTIFIED 3 months ago - at 08/05/2025 05:16PM

We are still seeing good performance with the Slam model and requests completing as expected, but we are still working to fully resolve the root cause to prevent issues in the future.

IDENTIFIED 3 months ago - at 08/05/2025 04:53PM

We are seeing Slam-1 requests complete successfully once again, but we are still working to fully resolve the root cause of this issue.

IDENTIFIED 3 months ago - at 08/05/2025 04:42PM

We are once again experiencing issues with Slam-1 where requests are failing with a "Server error, developers have been alerted" error.

Note: This issue is only affecting requests using Slam-1 as the `speech_model`. Changing the `speech_model` to Universal will allow requests to complete successfully. See this section of our documentation for more information on specifying a speech model: https://www.assemblyai.com/docs/speech-to-text/pre-recorded-audio/select-the-speech-model

MONITORING 3 months ago - at 08/05/2025 04:23PM

We have resolved the issue that was affecting Slam-1 and are now seeing requests being processed successfully. We will continue to monitor traffic to ensure good performance, but everything is working as expected at the moment.

INVESTIGATING 3 months ago - at 08/05/2025 04:14PM

We are continuing to investigate the issues affecting Slam-1. Currently, all requests using Slam-1 as the `speech_model` are failing with a "Server error, developers have been alerted" error. Our team is working to resolve this issue as quickly as possible.

Note: This issue is only affecting requests using Slam-1 as the `speech_model`. Changing the `speech_model` to Universal will allow requests to complete successfully. See this section of our documentation for more information on specifying a speech model: https://www.assemblyai.com/docs/speech-to-text/pre-recorded-audio/select-the-speech-model

INVESTIGATING 3 months ago - at 08/05/2025 04:05PM

We are currently investigating an issue with Slam-1 that is preventing the successful completion of transcription requests using the model. We will share additional information as it becomes available.

Please note this issue is only affecting requests using Slam-1 as the `speech_model`. Universal is unaffected.

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