Speech-to-Text Intelligence, Built for Real-Time Precision.
Transform conversational audio into synchronized transcripts, speaker diarization timelines, and export-ready subtitles in milliseconds. Powered by Aura-3 Flagship and Cloudflare Workers.
Try Word-Synchronized STT Right Now.
Click words to jump playback. Watch real-time audio waveform canvas rendering.
AI Architecture & Aura-3 Review
Click any word to jump audio timestamp. Word-level synchronization at 60 FPS.
Aura-3demonstratedathirtypercentreductioninWER,especiallywhendealingwithdomain-specificvocabularyandacousticoverlaps.
AndbecausewestreamdirectlythroughCloudflareWorkersedgenodes,turnaroundlatencyissub-three-hundredmilliseconds.
Engineered for Audio Perfection.
Everything you need to capture, transcribe, edit, and export conversational audio with millisecond accuracy.
Aura-3 Flagship Neural Engine
Trained on 10M+ hours of multilingual audio. Delivers a 30% reduction in Word Error Rate over standard Whisper Cloud on technical jargon.
Word-by-Word Synchronized Player
Audio playback lights up individual words in real-time. Click any word in the transcript to jump audio playback to that exact millisecond timestamp.
Multi-Speaker Diarization
Separates conversational turns into color-coded speaker segments. Rename speakers, inspect talk-time percentages, and track dialogue flow.
One-Click Subtitle Exporter
Export timecode-accurate SubRip (.srt), WebVTT (.vtt), clean TXT, or structured Aura JSON metadata for any video editing workflow.
Cloudflare Workers Edge Architecture
Deployed serverless on Cloudflare Workers edge nodes using nodejs_compat and D1 serverless SQLite for sub-300ms global response times.
Usage-Based Credit Deposits
No recurring lock-in. Fund your balance via secure checkout ($50, $100, $250 tiers) with instantaneous automated balance fulfillment.
How AuraSTT Outperforms Legacy STT.
Aura-3 Flagship combined with Cloudflare Workers edge execution sets a new industry standard for transcription accuracy and response speed.
| Capability | AuraSTT (Aura-3) | OpenAI Whisper | Google Speech | AssemblyAI |
|---|---|---|---|---|
| Word Error Rate (WER) | 5.8% (Aura-3 Flagship) | 8.4% | 9.2% | 7.9% |
| Average Processing Speed | <300ms turnaround | 3.5 - 6.0s | 2.0 - 4.5s | 2.5 - 5.0s |
| Word-by-Word Synchronized Player | Built-in 60fps Highlight | Third-party required | API only | API only |
| Multi-Speaker Diarization | Included + Renaming | Unsupported in API | Extra cost | Extra cost |
| Subtitles Export (.SRT, .VTT) | One-Click Instant | Manual script | Manual script | Manual script |
| Billing Model | Metered Balance Deposit | Credit card lock-in | Complex cloud billing | High monthly minimum |
Deposit Once. Pay Only For What You Transcribe.
No monthly recurring locks. Deposits start from $50 and are deducted strictly based on your actual audio minutes. Credits never expire.
Minimum balance deposit to activate transcription with our Aura-3 Flagship foundation model.
- 3,000 minutes of transcription
- Deducted as you use at $0.016/min
- Aura-3 and Aura-2 model access
- Interactive synced audio player
- Multi-speaker diarization
- SRT and VTT subtitle downloads
Best for video creators, podcast editors, and rapid research pipelines.
- 6,500 minutes of transcription
- Aura-3 flagship priority queue
- AI Executive Summaries & Topics
- Never-expiring credit balance
- Cloudflare D1 transcription storage
- Full REST API & Webhook access
Bulk audio processing credits for engineering teams and automated ingestion queues.
- 18,000 minutes of transcription
- Lowest unit cost ($0.013 / min)
- Dedicated API token concurrency
- Automated invoice & receipt portal
- Priority Cloudflare Edge routing
- Direct developer Discord support
Start Transcribing with Aura-3 Today.
Record your microphone or upload any audio file. Instant word timestamps, multi-speaker separation, and automated subtitles.