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MODULATE AI TRANSCRIPTION API

Transcription for Real-World Audio — 10x Lower Cost. Lowest Error Rate.

Stop overpaying for transcription that breaks on messy audio. Modulate delivers up to 10x better cost performance and understands real conversations — not just studio recordings.

#1 on AMI Real-World Benchmark
Built for developers
Get Immediate API Access
400 Hours Free

No sales conversation needed

Transcription Benchmark (Accuracy vs. Price)
Average Word Error Rate (WER) across Earnings-22 and VoxPopuli datasets
Lowest WER lowest cost
Cost per hour
Avg. Word Error Rate
modulate-transcribe
scribe-v2
assemblyai-universal-2
assemblyai-universal-3-pro
speechmatics-enhanced
google-gemini-2.5-pro
gpt-4o-transcribe
google-chirp-2
deepgram-nova-3
openai-whisper-large-v3
8
9
10
11
12
13 %
$0.00
0.10
0.20
0.30
$0.40
Batch
Streaming
Speech-to-Text Transcription Pricing (Batch)
Modulate
$0.03 / hr
xAI
grok-stt
$0.10 / hr
AssemblyAI
universal-3 Pro
$0.21 / hr
ElevenLabs
scribe v2
$0.22 / hr
Speechmatics
enhanced
$0.24 / hr
Deepgram
nova-3
$0.31 / hr
OpenAI
gpt-4o-transcribe
$0.36 / hr
Speech-to-Text Transcription Pricing (Streaming)
Modulate
$0.06 / hr
xAI
grok
$0.20 / hr
Speechmatics
enhanced
$0.24 / hr
Deepgram
nova-3
$0.35 / hr
OpenAI
gpt-4o-transcribe
$0.36 / hr
ElevenLabs
scribe-v2
$0.39 / hr
AssemblyAI
universal-3-pro
$0.45 / hr

10x Lower Cost Than the Competition

Explore Cost Comparison Tool

A Side-by-Side Comparison for Teams
Evaluating Transcription Providers

Feature
Modulate
Competitors
Real-World Accuracy
Lowest Word Error Rate
Strong on clean audio; weak on messy speech
Cost
3c per hour
15c to 50c per hour
Overlapping speakers
Handles naturally
Underperforms in complex multi-speaker audio
Training Data
500M+ hours of conversations
Primarily curated / structured datasets
Streaming Support
Real-time streaming
Real-time streaming
Emotion Detection
20+ emotions
None
Accent detection
20+ accents
None
PII / PHI redaction
Yes
Yes
Diarization
Yes
Yes
Language Support
57 distinct plus dialects
50+ distinct plus dialects

Why teams are upgrading to Modulate

#1 Accuracy on Independent Benchmarks

Highest accuracy across multiple benchmarks including Earnings-22 and AMI Meeting Corpus. Modulate is trained on noisy real-world conversations.

Lower Cost. Serious Savings.

On-demand pricing at $0.03/hr with no volume penalties. Teams switching from leading alternatives see 10x lower cost or more.

Built for Intelligence, Not Just Transcription.

Modulate's audio transcription API is the foundation for emotion detection, speaker diarization, and conversation analysis. Transcription is just the start.

Fewer Downstream Fixes

Higher accuracy from the start means less time correcting transcripts in post-processing pipelines.

Drop-In API. No Friction.

Batch and real-time streaming transcription

No reliance on text-only LLM pipelines

Trained on 500M+ hours of conversations

Clear documentation, fast onboarding

Up to 400 free hours when you sign up

terminal
$ curl -X POST https://api.modulate.ai/transcribe \
-H "Authorization: Bearer YOUR_API_KEY" \
-F "audio=@file.wav"
View API Docs →

Stop Overpaying for Transcription.

Build with the #1 accuracy transcription API — at a fraction of the cost. Free tier included. No credit card required.

Try the Audio Transcription API Free

Teams switching from leading transcription providers consistently see higher accuracy on real-world audio, fewer downstream corrections, and dramatically reduced infrastructure costs.

Transcription

Available Now

Emotion Detection

Available Now

Deepfake Detection

Available Now

Conversation Understanding

Coming Soon
The #1 AI Transcription API — Try It Free
Try The API