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MAI-Transcribe 1.5

azure/mai-transcribe-1.5

June 2026 update to Microsoft AI's transcription model that widened coverage to 43 languages and added phrase-list keyword biasing and clean or verbatim output styles; file input, no diarization. Superseded by MAI-Transcribe-2 in September 2026.

API
curl "$AUDIOLAB_API_URL/v1/audio/transcriptions" \
  -H "Authorization: Bearer $AUDIOLAB_API_KEY" \
  -F 'model=azure/mai-transcribe-1.5' \
  -F 'file=@recording.wav'
Input Price
$0.0051 / minute
Output Price
—
Input
Audio
Output
Text

Capabilities

Explore what MAI-Transcribe 1.5 supports, then use the API section for a request tailored to this model.

BatchSegment timestampsConfidenceKeyterms

Languages

Multilingual

Model Information

Product
Speech-to-Text
Release Date
Jun 2, 2026
Data Policy
Configurable
Region
Unknown
Input
Audio
Output
Text
Provider Documentation

Playground

Try MAI-Transcribe 1.5 by Microsoft Azure. Requests use the selected workspace’s credits and API pricing.

MAI-Transcribe 1.5Credits —
MAI-Transcribe 1.5
Attach an audio file to turn speech into text.

Providers

Compare available endpoints, pricing, and context limits for MAI-Transcribe 1.5.

ProviderContextOutputInput PriceOutput PriceEndpoint
Microsoft AzureNot specifiedText$0.0051 / minute—
azure/mai-transcribe-1.5:azure

Prices are catalog rates. Your workspace’s estimate and endpoint pricing determine the final charge.

Input and Output Limits

Formats and limits AudioLab enforces on each request.

LimitValue
Max bytesNot specified
Max seconds3600
Formatsflac, mp3, mp4, mpeg, mpga, m4a, ogg, wav, webm

Provider Notes

azure/speech-realtime bridges the official Speech SDK continuous recognizer behind AudioLab's WebSocket route and switches to ConversationTranscriber for live speaker diarization. It accepts mono PCM16 at the session sample rate, supports up to four candidate locales for at-start language identification or ten for continuous identification, and limits phrase lists to Microsoft's documented 500 phrases. Time segmentation requires a 20–70 second maximum; semantic segmentation has no silence control. The file-only speech-fast API supports translation, prompt arrays, channels, diarization, and phrase lists. MAI Transcribe 1 and 1.5 remain file-only and do not support diarization, translation, or prompt tuning; 1.5 adds phrase lists and readable/verbatim style. Availability varies by Azure region.

Performance

Status

Current catalog availability. Your workspace’s access is checked separately before a request runs.

Getting Started

Use your workspace API key and the exact model identifier below. Set the API URL to the endpoint shown in your workspace and keep credentials on your server.

API
curl "$AUDIOLAB_API_URL/v1/audio/transcriptions" \
  -H "Authorization: Bearer $AUDIOLAB_API_KEY" \
  -F 'model=azure/mai-transcribe-1.5' \
  -F 'file=@recording.wav'
Read the Endpoint Reference

Request Parameters

Available parameters depend on the provider and request format. The endpoint reference explains accepted values and required fields.

ParameterDetails
modelazure/mai-transcribe-1.5 — Required model identifier.
locales / channelsView Accepted Values
diarization.enabled / diarization.max_speakers (speech-fast)View Accepted Values
phrase_list.phrases / phrase_list.biasing_weight (speech-fast and MAI 1.5)View Accepted Values
profanity_filter_modeView Accepted Values
enhanced_mode.task / target_language / prompt (speech-fast)View Accepted Values
enhanced_mode.transcribe_style (MAI 1.5)View Accepted Values
language_id_mode / word_timestamps / endpoint_id / dictation (realtime)View Accepted Values
diarization.diarize_interim_results (realtime)View Accepted Values
segmentation_strategy / segmentation silence and maximum time (realtime)View Accepted Values
initial_silence_timeout_ms / start_event_sensitivity / stable_partial_result_threshold (realtime)View Accepted Values
post_processing=true_text (realtime)View Accepted Values

Input and Output Limits

Formats and limits AudioLab enforces on each request.

LimitValue
Max bytesNot specified
Max seconds3600
Formatsflac, mp3, mp4, mpeg, mpga, m4a, ogg, wav, webm

Similar Models

Explore more speech-to-text and compare their capabilities.

ModelContextInput PriceOutput Price
MAI-Transcribe 2Microsoft AzureNot specified$0.0014 / minute—
MAI-Transcribe 1Microsoft AzureNot specified$0.0142 / minute—
Speech Fast TranscriptionMicrosoft AzureNot specified$0.0051 / minute—
Speech RealtimeMicrosoft AzureNot specified$0.0142 / minute—
Gemini 3.5 TranscribeGoogle GeminiNot specified$0.0043 / minute—
Saaras v4Sarvam AINot specified₹0.425 / minute—
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