Sonilo Proofread API

Transcribes a video and translates the script into 24 languages, returning editable subtitle tracks you can correct before dubbing.

SoniloTranscriptionProprietary EndpointNew

About Sonilo Proofread

Transcribes a video and translates the script into 24 languages, returning editable subtitle tracks you can correct before dubbing.

transcriptiontranslationmultilingualsrt vtttimestamps

Sonilo Proofread specs

Model ID
sonilo-proofread
Author
Sonilo
Category
Transcription
Released
-
Input
Video
Output
Text
Endpoints
POST/v1/audio/transcriptions
Alternate model IDs
sonilo/sonilo-proofread

Sonilo Proofread API pricing

Live pay-as-you-go rates from the EmpirioLabs catalog. You are billed only for what you use, with no monthly minimum.

Type
Spec
Rate
Proofread
per second per language
$0.002
Compare on the full pricing page

How to call the Sonilo Proofread API

Sonilo Proofread runs through POST /v1/audio/transcriptions. The request returns a job_id right away; poll GET /v1/jobs/{job_id} until the job completes and read the output URLs from the result. Get an API key from the EmpirioLabs dashboard.

cURL: submit the job
curl https://api.empiriolabs.ai/v1/audio/transcriptions \
  -H "Authorization: Bearer $EMPIRIOLABS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "sonilo-proofread",
    "audio_url": "https://example.com/meeting-recording.mp3"
  }'
cURL: poll for the result
curl https://api.empiriolabs.ai/v1/jobs/JOB_ID \
  -H "Authorization: Bearer $EMPIRIOLABS_API_KEY"
Python
import requests

response = requests.post(
    "https://api.empiriolabs.ai/v1/audio/transcriptions",
    headers={"Authorization": "Bearer YOUR_EMPIRIOLABS_API_KEY"},
    json={
        "model": "sonilo-proofread",
        "audio_url": "https://example.com/meeting-recording.mp3",
    },
)
job = response.json()

# Generation runs as an async job. Poll until it completes.
import time
while True:
    status = requests.get(
        f"https://api.empiriolabs.ai/v1/jobs/{job['job_id']}",
        headers={"Authorization": "Bearer YOUR_EMPIRIOLABS_API_KEY"},
    ).json()
    if status.get("status") in ("completed", "failed"):
        print(status)
        break
    time.sleep(5)
Full Sonilo Proofread API reference

Sonilo Proofread API parameters

Request parameters supported by the Sonilo Proofread API on EmpirioLabs. Defaults apply when a field is omitted.

ParameterTypeDefaultRange / valuesDescription
languagesstring--JSON array of language codes to translate the transcript into. Billed per language. Omit it for the source transcript only. Supported: en, zh_cn, ja, ko, pt, pt_br,...
source_languagestring--The language actually spoken in the video, which helps on short, noisy or mixed-language audio. Omit it to detect the language. Supported: en, zh_cn, ja, ko, pt,...
video_urlstring--Source video, as a publicly reachable URL. Up to 300MB and 5 minutes, and it must carry an audio track.

Good to know

Languages

en, zh_cn, ja, ko, pt, pt_br, es, es_419, de, fr, it, ru, th, ar, tr, vi, id, ta, ml, kn, gu, pa_in, sd_in, hi

Controls

Supports source video, a list of target languages to translate the transcript into, and an optional expected source language for short or noisy audio.

Limits

  • Source video up to 300MB and 5 minutes
  • The video must carry an audio track
  • Subtitle tracks are returned inline as text, one per language, always including the source language

Billing

  • Charged per second of source video multiplied by the number of target languages, with a 10 second minimum. A transcript-only request counts as one.
  • A request rejected before generation is not billed.

Sonilo Proofread API: common questions

How much does the Sonilo Proofread API cost?

On EmpirioLabs, Sonilo Proofread is billed pay as you go: Proofread $0.002 per second per language. The live rate card on this page always matches what the API charges.

Which endpoint does Sonilo Proofread use?

Sonilo Proofread is served through POST /v1/audio/transcriptions on api.empiriolabs.ai with standard bearer-token authentication.

Can I try Sonilo Proofread in the browser before integrating?

Yes. The EmpirioLabs playground runs Sonilo Proofread in the browser with the same parameters the API exposes, so you can test prompts before writing code.

How do I get a Sonilo Proofread API key?

Create an EmpirioLabs account, then generate a key under API Keys in the dashboard. Billing is pay-as-you-go credits, so you only pay for the requests you make.

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