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Live demos
The same API behind every demo: transcription, emotion, and speaking style from one call.
All demos →Speech emotion
IEMOCAP
identical audio to every vendor · wider intervals mean the vendor stopped early at credit or rate limits · hover a row
Sarcasm
Transcription
Per-emotion F1
oruk Spectra against Gemini 3 Flash Preview, the strongest frontier multimodal API in the August 2026 report, on all seven emotion classes.
Models & pricing
Highest-accuracy transcription and unified analysis.
oruk-resonanceJoin the waitlistThe efficient choice for emotion and style.
oruk-spectra-1Join the waitlistA preview tier that is not yet serving traffic.
oruk-spectra-2Join the waitlist≈ $7.20/mo
≈ $7.20 per month
The $50 trial credit covers about 69 hours at this rate.
50% less than buying transcript, emotion, and style separately.
Billed by the measured second. $50 trial credit, no card required. Volume rates and on-device licensing on the pricing page.
Scope
English transcription. Transcribes prerecorded English audio files via POST /v1/audio/transcriptions.
Multilabel emotion detection. 15 emotion labels with scores calibrated on held-out audio; a clip can carry several labels at once.
Speaking-style classification. 16 speaking-style labels (calibrated, multilabel) describing how something was said.
Combined affect. Emotion and speaking style in one call, skipping transcript output when it is not needed.
Unified analysis. One request returns transcript, calibrated labels, time-local segments, and tagged text.
API v1 · scope statement updated 2026-07-13. Full details on the capabilities page.
Company
A transcript preserves words but drops acoustic information. oruk models the transcript, emotion, and speaking style together so applications can use both.
We benchmark against the field on its own terms and publish where it counts. Progress you can verify, not claims you have to take on faith.
Understanding should be one API call away. We carry the hard parts so the teams shipping conversational AI to real people don’t have to.
Questions
oruk API v1 processes English audio files for transcription, emotion detection, speaking-style classification, or unified analysis. Unified responses include a transcript, calibrated labels, time-local segments, and tagged text. The current public contract is file based, not streaming.
The API serves two tiers today: Spectra 1 for efficient affect workloads and Resonance, the flagship, for the strongest transcription and unified analysis. Spectra 2 is listed in the catalog as a preview tier but is not yet serving traffic.
The API scores 15 emotion labels against thresholds calibrated on held-out audio. A clip may return several emotions. If no emotion crosses its threshold, the highest-scoring emotion is returned as a fallback. Long audio also includes segment-level labels so applications can follow changes over time.
Speaking style is a separate 16-label multilabel output. A clip may have multiple styles or no selected style. Emotion and style can be requested independently, together through the affect endpoint, or alongside a transcript through unified analysis.
Yes. Resonance is the recommended model for English transcription. The same API can also return acoustic emotion and speaking-style labels, which preserves useful information that a transcript alone does not contain.
Developers create an account, which activates immediately with $50 in trial credit, and generate a production API key in the developer portal. The v1 API uses bearer authentication and multipart file uploads. Keys are displayed only once.
API v1 supports English. Inputs may be mono or stereo and use WAV, FLAC, MP3, M4A, OGG, or WebM containers with common sample rates. oruk does not currently advertise multilingual production support for this API.
Inference is priced per audio minute and metered by measured second, with a one-second minimum. Each response includes the billable duration, rate, estimated cost, and pricing version. The developer portal shows the immutable credit ledger and request-level usage history.