Speech Recognition ThatUnderstands Mixed-LanguageConversations

Real conversations don't stay in one language. Zero STT CodeSwitch transcribes multilingual speech exactly as it's spoken, handling language switches mid-sentence without pausing, detecting languages, or stitching together multiple models.

1 Model

No language handoff

200+ Languages

One multilingual architecture

Production Ready

Hinglish, Tanglish, Benglish

<200ms

Streaming latency

Same API

Streaming & Batch

Native Code Switching

People Don't Speak in One Language

Language switching isn't an edge case. It's how millions of people communicate every day. A customer in Delhi starts a sentence

in Hindi and finishes it in English. A sales representative in Chennai switches between Tamil and English. A healthcare worker

explains a diagnosis using both Bengali and English medical terms. Traditional speech recognition systems struggle because

they're built to recognize one language at a time. Zero STT CodeSwitch is built differently. Instead of detecting

languages and switching models, it understands multilingual speech as a single conversation.

Language switching isn't an edge case. It's how millions of people communicate every day.
Hello sir,mera order kal deliver huabut payment confirmationabhi tak nahi aaya.
English
Hindi
English
Hindi
Traditional Pipeline
Detect English
Switch Model
Detect Hindi
Switch Again
Merge
  • · splits the sentence
  • · mistranslate financial terms
  • · incorrectly identify the language
  • · lose context
Zero STT CodeSwitch
One ConversationOne ModelOne Transcript
  • No meaning loss
  • No language detection
  • No model switching
  • One transcript
The Architecture

One Model Instead of Many

Traditional Multilingual Pipeline

Speech
Language Detection
Hindi Model
Final Transcript
Merge Output
English Model

Zero STT CodeSwitch

Speech
ONE MODEL
Accurate Transcript
Languages

Built for the World's Most Common Language Pairs

Live in Production
Hinglish
Hindi + English
Tanglish
Tamil + English
Benglish
Bengali + English
Minglish
Marathi + English
Available Across the Platformand many more
Japanese + EnglishKorean + EnglishHindi + JapaneseTamil + EnglishTelugu + EnglishGujarati + EnglishPunjabi + EnglishMalayalam + English
Capabilities

More Than a Transcript

Native Code Switching

No language detection required.

Proper Noun Recognition

Names, Addresses, Brands, Products

Speaker Diarization

Separate speakers in multilingual conversations.

Intent Detection

Understand what the customer wants.

Sentiment Analysis

Track emotional changes across conversations.

Real-Time Streaming

Sub-500ms transcription.

Why Zero STT Codeswitch

Why Teams Choose Zero STT CodeSwitch

Zero STT CodeSwitchCodeSwitch
Traditional Multilingual STTTraditional STT
Native multilingual model
Language detection
Not required
Required
Mid-sentence switching
Limited
Continuous transcript
Partial
Streaming
Speaker diarization
Add-on
Intent & sentiment
Separate service
Enterprise deployment
Limited

Related Models

Zero STTUniversal multilingual speech recognition.Zero STT IndicIndian languages and dialects.Zero STT MedMedical speech recognition.Zero Tiny ONNXOffline recognition.