Whisper Transcription

Overview

Transcribe audio to text using OpenAI’s Whisper model, available through two providers with different speed/cost profiles.

Model ID	Provider	Speed	Credits	~Cost
`whisper`	fal	Standard	10	$0.10
`whisper-large-v3`	fal	Standard	10	$0.10
`groq-whisper`	Groq	Fast	5	$0.05
`groq-whisper-large-v3`	Groq	Fast	5	$0.05
`groq-whisper-large-v3-turbo`	Groq	Fastest	3	$0.03

Quick start

import { createVarg } from "vargai/ai"

const varg = createVarg({ apiKey: process.env.VARG_API_KEY! })

const result = await varg.transcriptionModel("whisper").generate({
  file: "https://example.com/audio.mp3",
})

console.log(result.text)

curl -X POST https://api.varg.ai/v2/transcription \
  -H "Authorization: Bearer $VARG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "whisper",
    "file": "https://example.com/audio.mp3"
  }'

Parameters

string

required

URL or local path to the audio file. Supports mp3, wav, m4a, ogg, flac, webm.

string

Language code (e.g., "en", "es", "fr"). Auto-detected if not specified.

string

Optional context to guide transcription. Useful for domain-specific terms or names.

number

default:"0"

Sampling temperature. 0 = deterministic, higher = more creative (not usually needed for transcription).

Choosing a model

Scenario	Recommended	Why
Cheapest	`groq-whisper-large-v3-turbo` (3 credits)	70% cheaper than fal Whisper
Best quality	`whisper-large-v3` (10 credits)	Full Large V3 model on fal
Fast + cheap	`groq-whisper` (5 credits)	Good balance
Default	`whisper` (10 credits)	Reliable, well-tested

Use with captions

Transcription is commonly used to generate captions for videos:

const narration = Speech({
  model: varg.speechModel("eleven_v3"),
  text: "Welcome to the future of video creation.",
})

<Clip duration={5}>
  <Video model={varg.videoModel("kling-v3")} prompt="futuristic city" duration={5} />
  {narration}
  <Captions source={narration} />
</Clip>

Pricing

Model	Credits	USD
`whisper` / `whisper-large-v3`	10	$0.10
`groq-whisper` / `groq-whisper-large-v3`	5	$0.05
`groq-whisper-large-v3-turbo`	3	$0.03

ElevenLabs Speech

Generate speech from text (the reverse operation).

Get Started

Models

SDK

Templates

MCP

AI Agents

Comparisons

Whisper Transcription

Overview

Quick start

Parameters

Choosing a model

Use with captions

Pricing

ElevenLabs Speech

​Overview

​Quick start

​Parameters

​Choosing a model

​Use with captions

​Pricing

​Related models

ElevenLabs Speech

Overview

Quick start

Parameters

Choosing a model

Use with captions

Pricing

Related models