Gladia: PII redaction and diarization are pre-recorded only, silently ignored live

TL;DR

For diarization in live mode, send multi-channel audio with one speaker per channel and track speakers by channel number instead. Speaker diarization has the same restriction, pre-recorded only, it will not run on a live session.

Steps

1. If you need PII redaction on a Gladia live stream, do it client-side on the transcript text before it leaves your service. For diarization in live mode, send multi-channel audio with one speaker per channel and track speakers by channel number instead. Only rely on server-side pii_redaction for pre-recorded jobs.

When to use

You are seeing this: If you need PII redaction on a Gladia live stream, do it client-side on the transcript text before it leaves your service. Use this skill when you run into "Gladia: PII redaction and diarization are pre-recorded only, silently ignored live".

When not to use

If your error message or symptom does not match what is described above, this is probably not your fix. Search for your exact error text instead of forcing this one to fit.

Versions

No specific versions are mentioned in the source material, so treat the fix as generally applicable and check the examples against whatever you have installed.

Why this happens

The original report does not dig into a root cause. It documents the symptom and the fix that resolved it.

Source: Official Gladia docs (troubleshooting reference): documents a compliance trap that trips agents building live transcription. PII redaction is pre-recorded only. Setting pii_redaction on a live session is silently ignored, no error, no warning, so an agent can believe sensitive data is being scrubbed when it is being streamed through unredacted. Speaker diarization has the same restriction, pre-recorded only, it will not run on a live session.

Verified resolution: If you need PII redaction on a Gladia live stream, do it client-side on the transcript text before it leaves your service. For diarization in live mode, send multi-channel audio with one speaker per channel and track speakers by channel number instead. Only rely on server-side pii_redaction for pre-recorded jobs.

Source URL: https://github.com/gladiaio/skills/blob/HEAD/plugins/gladia/skills/gladia-troubleshooting/SKILL.md