SpeechTranscriber not supported

Question

Created 3w

Replies 4

Boosts 0

Participants 4

I've tried SpeechTranscriber with a lot of my devices (from iPhone 12 series ~ iPhone 17 series) without issues. However, SpeechTranscriber.isAvailable value is false for my iPhone 11 Pro. https://developer.apple.com/documentation/speech/speechtranscriber/isavailable

I'am curious why the iPhone 11 Pro device is not supported. Are all iPhone 11 series not supported intentionally? Or is there any problem with my specific device?

I've also checked the supportedLocales, and the value is an empty array. https://developer.apple.com/documentation/speech/speechtranscriber/supportedlocales

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Answer 1

joedev3 OP

2w

The fact that it's not supported on Simulator is annoying. What an inconvenience. Is this going to change soon? I'm on Xcode 26.1 and Simulator iOS 26.1.

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Answer 2

MYMY OP

2w

I've tested and found that SpeechTranscriber.isAvailable returns false on these devices.

iPhone 11
iPhone 11 Pro
iPhone 11 Pro Max
iPhone SE 2nd Generation

Here is my assumption:

iOS 26 models with an 8-core Neural Engine do not support SpeechTranscriber
iOS 26 models with a 16-core Neural Engine support SpeechTranscriber

You can check your model's neural engine core from the link below. https://www.apple.com/iphone/compare/

This assumption perfectly aligns with the test result I've done so far. If it's true, Apple should clearly state this requirement in their documentation.

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Answer 3

Jaanus OP

2w

I just hit this bug where SpeechTranscriber is not available on iOS 26 Simulator using latest tools. Annoying and unexpected. Why?

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Answer 4

afsasdf OP

2w

I didn't see this thread before I created a mine. I have made a swift class to to determine if the device supports SpeechTranscriber see here: https://developer.apple.com/forums/thread/807739

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