One API. The right speech model for every language

Your audio deserves more than a default model. We route each file to the right transcription provider for its language and audio profile. Clearer results.

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Built for developers, creators, and AI agents

Illustrative routes. Actual decisions depend on benchmark evidence.

Many languages.
One clear connection.

100+Supported languages

4Language Model Routing

1Normalized API

JSON · TXT
SRT · VTTOutput formats

Why QuantClarity

Different voices.
Different strengths.
One smarter route.

Accuracy changes with language, accent, recording conditions, speaker count, and domain. QuantClarity turns that moving target into one stable integration.

Measured routing

Per-language routing using verified accuracy benchmarks instead of a generic one-size-fits-all default.

Consistent output

Receive normalized JSON, text, SRT, or VTT with predictable timestamps and speaker information.

Built-in resilience

Robust asynchronous processing powered by durable database queues and idempotent job retry.

How it works

Complexity out.
Clarity in.

From raw audio to a transcript you can use, with a routing decision you can inspect.

Analyze

Accept audio up to 25 MB with optional language hints to route directly to specialized models.

Route

Match the job to the language-specific model using verified accuracy benchmarks.

Transcribe

Process audio through the language-matched model with durable background queues and progress polling.

Normalize

Return one schema with the routed model, provider, and routing reason.

POST /v1/audio/transcriptionsAPI PREVIEW

curl https://api.quantclarity.com/v1/audio/transcriptions \
  -H "Authorization: Bearer $API_KEY" \
  -F "file=@interview.mp3" \
  -F "language=ur"

{
  "status": "complete",
  "provider": "selected-model",
  "benchmark_version": "2026.09",
  "formats": ["json", "srt"]
}

One integration. Every provider.REST API + MCP

Language coverage

Speak your language.
We’ll find the route.

Planned coverage combines every language supported by at least one connected provider. QuantClarity will route with benchmarks where evidence exists and use heuristic or customer-selected routing everywhere else.

Coverage is tieredSupported means at least one provider can accept the language. Benchmark-routed languages have comparable QuantClarity tests. Features, locales, model access, and regional availability vary by provider.

Explore language coverage 123 languages

Showing all 123 languages

Afrikaans

Albanian

Amharic

Arabic

Armenian

Aromanian

Assamese

Asturian

Azerbaijani

Bashkir

Basque

Belarusian

Bengali

Bosnian

Breton

Bulgarian

Burmese

Cantonese

Catalan

Cebuano

Chichewa

Chinese Mandarin

Croatian

Czech

Danish

Dutch

English

Estonian

Faroese

Filipino

Finnish

French

Fulah

Galician

Ganda

Georgian

German

Greek

Gujarati

Haitian Creole

Hausa

Hawaiian

Hebrew

Hindi

Hungarian

Icelandic

Igbo

Indonesian

Irish

Italian

Japanese

Javanese

Kabuverdianu

Kannada

Kazakh

Khmer

Kinyarwanda

Korean

Kurdish

Kyrgyz

Lao

Latin

Latvian

Lingala

Lithuanian

Luo

Luxembourgish

Macedonian

Malagasy

Malay

Malayalam

Maltese

Maori

Marathi

Mongolian

Nepali

Northern Sotho

Norwegian

Norwegian Nynorsk

Occitan

Odia

Pashto

Persian

Polish

Portuguese

Punjabi

Romanian

Russian

Sanskrit

Serbian

Shona

Sindhi

Sinhala

Slovak

Slovenian

Somali

Spanish

Sundanese

Swahili

Swati

Swedish

Tagalog

Tajik

Tamil

Tatar

Telugu

Thai

Tibetan

Tsonga

Tswana

Turkish

Turkmen

Ukrainian

Umbundu

Urdu

Uzbek

Vietnamese

Welsh

Wolof

Xhosa

Yiddish

Yoruba

Zulu

Designed for real work

From agent tools to long-form media.

QuantClarity launches with batch transcription so teams can get measurable quality, useful output formats, and predictable workflows before real-time voice routing.

01 / BUILD

AI agents

Give ChatGPT, Claude, Gemini, and custom agents a stable transcription tool through MCP and OpenAPI.

02 / CREATE

Creator media

Turn authorized YouTube videos, podcasts, and interviews into searchable transcripts and subtitles.

03 / CONNECT

Localization

Route multilingual jobs with a clear benchmark basis and export files that fit production workflows.

04 / DISCOVER

Research

Process interviews and field recordings with speaker labels, timestamps, and transparent routing records.

Get started

Your next transcript
could be clearer.

Bring us the audio your current model gets wrong. Hear the difference a better route makes for your language and workflow.

One API. The right speech model for every language Arabic

Different voices.Different strengths.One smarter route.