Built for voice agents that can't wait 600ms

Qwen Alibaba Cloud: Qwen3 ASR Flash Filetrans

qwen/qwen3-asr-flash-filetrans
active stt 1 provider
Playground

Qwen long-file speech recognition model served as an asynchronous transcription task, accepting files up to 2 GB and 12 hours and returning sentence-level timestamps plus optional word-level timestamps.

AuthorQwen Alibaba Cloud
Languages27 languages
Variant models2 IDs
Statusactive

Variant Models

These are native model IDs accepted by the author/provider for the same canonical model family.

Qwen3 ASR Flash Filetrans Default

Stable id, sent as the model field of the asynchronous transcription task body and currently equivalent to the qwen3-asr-flash-filetrans-2025-11-17 snapshot.

qwen3-asr-flash-filetrans
Qwen3 ASR Flash Filetrans snapshot 2025-11-17 Variant

The only dated snapshot published for this model, so stable and snapshot do not diverge today.

qwen3-asr-flash-filetrans-2025-11-17

Providers

Different providers can host the same model. Choose one provider when you need a fixed backend, or let routing select among them.

ProviderSlugPer hourLatencyiFor TTS, latency is measured as time to first byte of audio. For STT, latency is measured as time to first token.ModesUptime
Qwen Alibaba Cloud 6 params
qwen
$0.126
—
Synchronous · Batch

Supported languages

27 languages
Chinese zh
Cantonese yue
English en
Japanese ja
German de
Korean ko
Russian ru
French fr
Portuguese pt
Arabic ar
Italian it
Spanish es
Hindi hi
Indonesian id
Thai th
Turkish tr
Ukrainian uk
Vietnamese vi
Czech cs
Danish da
Filipino fil
Finnish fi
Icelandic is
Malay ms
Norwegian no
Polish pl
Swedish sv

Features

Speech to text

Transcribes spoken audio to text.

speech_to_text
Batch

The caller submits a file URL and receives a task id, polls the task until it reports SUCCEEDED and then fetches the result JSON, for files up to 2 GB and 12 hours.

batch
Word-level timestamps

parameters.enable_words adds a words array of begin_time, end_time, text and punctuation to every sentence for ten of the 27 input languages, and also switches segmentation from VAD alone to VAD plus punctuation.

word_timestamps
Sentence-level timestamps

Every sentence in the result carries sentence_id, begin_time and end_time in milliseconds with no flag required.

sentence_timestamps
Multi-channel transcription

parameters.channel_id selects which channels of a multi-channel recording to transcribe, each returned as its own transcripts[] entry and each billed separately.

multi_channel_transcription
Context biasing

Accepts parameters.corpus as an object of the shape {"text": "<free-form context>"}, not a bare string.

context_biasing
Inverse text normalization

Optional inverse text normalization via parameters.enable_itn, off by default and applying to Chinese and English audio only.

inverse_text_normalization
Automatic language detection

parameters.language is optional, and the detected language is reported per sentence on transcripts[].sentences[].language.

language_identification
Multilingual transcription

Multilingual across the 27-code Qwen-ASR language enum.

multilingual_transcription
Emotion recognition

Returns an always-on emotion label per sentence on transcripts[].sentences[].emotion, with seven values (surprised, neutral, happy, sad, disgusted, angry, fearful).

emotion_recognition
Audio metadata in the result

The result JSON carries a top-level audio_info object of format and sample_rate only, with no duration field.

audio_info_metadata

Code

Client
Mode
Language

ElevenLabs SDK streaming STT

Streams microphone or file audio through the ElevenLabs-compatible allmodels route.

import { ElevenLabsClient } from "elevenlabs";

const client = new ElevenLabsClient({
  apiKey: process.env.ALLMODELS_API_KEY,
  baseUrl: "https://api.allmodels.io/el"
});

const connection = await client.speechToText.realtime.connect({
  modelId: "qwen/qwen3-asr-flash-filetrans",
  languageCode: "en"
}, {
  queryParams: {
    provider: {
      "only": [
        "qwen"
      ]
    }
  }
});

// Send audio frames to connection, then handle transcript events.