Skip to content
Model infoModelsSnapshot: 15 Oct 2026

MiniMax / ASR

MiniMax ASR 1.0

Uploaded-audio transcription with optional streamed text, speaker diarization and subtitle export.

Transcription
availableClosed weightsSpeech-to-text
Official documentation (opens in a new tab)Reviewed 12 Oct 2026
10 of 22 specification fields collected
Audio durationUp to 500 seconds of input audioSee specification notes below
File size limit50 MBSee specification notes below
Input billingSee ratesMiniMax
Output billingSee ratesPublished units and conditions below

Specifications

Provider-documented facts. “Not collected” means we have not verified that field yet, not that the feature is unsupported.

Context / input limit
Not collected
Maximum output
Not collected
Input modalities
AudioSource for Input modalities (opens in a new tab)
Output modalities
TextSource for Output modalities (opens in a new tab)
Reasoning
Not collected
Tool calling
Not collected
Structured output
Not collected
Streaming
SupportedSource for Streaming (opens in a new tab)

Streams the transcription of an uploaded file over SSE, not live microphone input. Streaming requires JSON and cannot include diarization or aligned subtitles.

Batch processing
Not collected
Fine-tuning
Not collected
Knowledge cutoff
Not collected
Release date
Not collected
Parameters
Not collected
Architecture
Not collected
Languages
View all 20 entries
  • Chinese
  • Cantonese
  • English
  • Japanese
  • Korean
  • Thai
  • Vietnamese
  • Indonesian
  • Malay
  • Filipino
  • Arabic
  • Turkish
  • French
  • German
  • Spanish
  • Italian
  • Portuguese
  • Polish
  • Russian
  • Ukrainian
Source for Languages (opens in a new tab)

Supported language hints; omitting the header permits mixed-language recognition.

Context caching
Not collected
Audio duration limits
Up to 500 seconds of input audioSource for Audio duration limits (opens in a new tab)
Maximum audio file
50 MBSource for Maximum audio file (opens in a new tab)
Audio formats
WAV, AIFF, FLAC, ALAC (M4A), MP3, AAC, Opus, OGGSource for Audio formats (opens in a new tab)
Output formats
JSON, Verbose JSON, SRT, VTTSource for Output formats (opens in a new tab)
Speaker diarization
SupportedSource for Speaker diarization (opens in a new tab)

Enabled by verbose_json, srt or vtt; incompatible with stream=true.

Word timestamps
SupportedSource for Word timestamps (opens in a new tab)

Timestamp levels sentence and word apply to aligned output, not the plain JSON stream.

Access & pricing

Prices belong to an endpoint and billing tier. A provider listing does not guarantee access for every account or region.

MiniMax

Provider source (opens in a new tab)
API model ID
asr-1.0
Access
Documented native API; an eligible account, API key and applicable balance or subscription are required. No paid inference was performed.
Regions
Not collected
API endpoint URL
POST https://api.minimax.io/v1/speech_to_textSource for API endpoint URL (opens in a new tab)

Prices retain their published currencies and billing units below.

Published billing units · original currency · observed 12 Oct 2026
CategoryUsageRateUnit
TranscriptionTranscription1$0.38hour

Rate conditions

  1. Billed by the duration of input audio. File upload and streaming-result options use the same documented endpoint rate.
Pricing source (opens in a new tab)

Data & enterprise terms

The March 30, 2026 service terms retain provider IP and allow use of inputs and generated content to provide, maintain, develop and improve the service. This review does not establish a no-training or zero-retention guarantee.

Read the service policy (opens in a new tab)

Caching

Caching can reuse earlier input processing. Availability, lifetime and billing depend on the endpoint. A cache hit still generates a new response.

01 / INITIAL INPUTProcess & retain

The system processes eligible input and retains reusable state.

02 / LATER REQUESTCheck available state

Reuse depends on matching input, session state and the cache policy.

03 / CACHE HITReuse & generate

Reusing state can reduce repeated work. Any charges follow the billing rules below.

MiniMax

asr-1.0
Not verified

No model-specific cache contract verified for this endpoint.

How it works
Not collected

No model-specific cache contract verified for this endpoint.

Minimum reusable input
Not collected

No model-specific cache contract verified for this endpoint.

Lifetime & refresh
Not collected

No model-specific cache contract verified for this endpoint.

How to enable it
Not collected

No model-specific cache contract verified for this endpoint.

Usage fields
Not collected

No model-specific cache contract verified for this endpoint.

Billing rules
Not collected

No model-specific cache contract verified for this endpoint.

Limits & data boundaries
Not collected

No model-specific cache contract verified for this endpoint.

No verified cache rate for this endpoint. An empty rate is not a zero charge.

What the measurements say

No benchmark observations have been added for this model. We do not turn a vendor description into a performance score.

Latency and throughput depend on the host, request size, reasoning settings and load. There is no measured speed or global usage figure in this record.

The record behind the model

Why it is included

Inferred closed-weight service variant: the exact model is documented through MiniMax service access and no corresponding weight release was identified in the reviewed official MiniMaxAI repository inventory. Service terms reserve underlying IP. Public M-series, H3 and Music 3 weights are explicitly excluded; the OpenAPI MIT label licenses documentation, not model weights.

Classification evidence (opens in a new tab)

Sources reviewed