speech updates for supported rest api

Author: eric-urban

articles/ai-services/speech-service/includes/quickstarts/speech-to-text-basics/intro.md

@@ -4,10 +4,13 @@ ms.service: azure-ai-speech
 ms.custom:
   - build-2024
 ms.topic: include
-ms.date: 08/24/2023
+ms.date: 8/5/2025
 ms.author: eur
 ---
 
 In this quickstart, you create and run an application to recognize and transcribe speech to text in real-time. 
 
+> [!TIP]
+> For fast transcription of audio files, consider using the [fast transcription API.](/azure/ai-services/speech-service/fast-transcription-create)
+
 To instead transcribe audio files asynchronously, see [What is batch transcription](~/articles/ai-services/speech-service/batch-transcription.md). If you're not sure which speech to text solution is right for you, see [What is speech to text?](~/articles/ai-services/speech-service/speech-to-text.md)

articles/ai-services/speech-service/includes/quickstarts/stt-diarization/intro.md

@@ -11,4 +11,4 @@ In this quickstart, you run an application for speech to text transcription with
 The speaker information is included in the result in the speaker ID field. The speaker ID is a generic identifier assigned to each conversation participant by the service during the recognition as different speakers are being identified from the provided audio content.
 
 > [!TIP]
-> You can try real-time speech to text in [Speech Studio](https://aka.ms/speechstudio/speechtotexttool) without signing up or writing any code. However, the Speech Studio doesn't yet support diarization.
+> For fast transcription of audio files, consider using the [fast transcription API.](/azure/ai-services/speech-service/fast-transcription-create) Fast transcription API supports features such as language identification and diarization. 

articles/ai-services/speech-service/includes/quickstarts/stt-diarization/rest.md

@@ -2,10 +2,13 @@
 author: eric-urban
 ms.service: azure-ai-speech
 ms.topic: include
-ms.date: 7/16/2025
+ms.date: 8/5/2025
 ms.author: eur
 ---
 
 [!INCLUDE [Header](../../common/rest.md)]
 
-The REST API doesn't support conversation transcription. Please select another programming language or tool from the top of this page. 
+The speech to text REST API for short audio doesn't support real-time diarization. 
+
+> [!TIP]
+> For fast transcription of audio files, consider using the [fast transcription API.](/azure/ai-services/speech-service/fast-transcription-create) Fast transcription API supports features such as language identification and diarization.