Transcribe with STT.ai Enhanced
3.2%
WER
100
Languages
160.0x
Speed
Proprietary
License
About STT.ai Enhanced
STT.ai Enhanced is our most accurate and fastest speech-to-text model. Built on cutting-edge transformer architecture with proprietary optimizations, it delivers industry-leading word error rates across 100+ languages. Ideal for production transcription, real-time captioning, and enterprise applications.
✦ Unlock Enhanced Model
Get access to our most accurate model with any paid plan. 3.2% WER, 160x real-time speed, 100+ languages.
View Plans →Model Info
- ProviderSTT.ai
- Architecture-
- LicenseProprietary
- UpdatedMar 2026
Frequently Asked Questions
STT.ai Enhanced is a speech-to-text model by STT.ai. STT.ai hosts STT.ai Enhanced on our GPU infrastructure so you can use it without provisioning your own hardware — upload audio or video and pick STT.ai Enhanced from the model picker.
On standard benchmarks, STT.ai Enhanced achieves around 3.2% Word Error Rate. Real-world accuracy depends on audio quality, accent, and language; for noisy or accented recordings, expect a few percentage points higher WER.
STT.ai Enhanced is a premium model — included with any paid STT.ai plan starting at $5/month. Free users can preview STT.ai Enhanced on short clips; longer files require an active plan.
STT.ai Enhanced is distributed under Proprietary. STT.ai's hosted version handles the licensing compliance for you so commercial use through our service is straightforward.
STT.ai Enhanced supports 100 languages. Auto-detection picks the right language for most audio; you can also specify it manually for a small accuracy lift.
STT.ai Enhanced processes audio at about 160.0x real-time on our GPUs. A 1-hour audio file finishes in under 1 minutes; longer files queue and notify by email when done.
STT.ai Enhanced has 1.5B parameters. Larger models tend to be more accurate but slower; STT.ai hosts STT.ai Enhanced on GPU so the parameter count doesn't affect your client-side performance.
STT.ai Enhanced accepts every format STT.ai supports — MP3, WAV, M4A, FLAC, OGG, MP4, MKV, MOV, WebM, AVI, and others. Output as TXT, SRT, VTT, DOCX, JSON, or PDF.
Yes. Speaker diarization runs alongside STT.ai Enhanced for every transcription — each speaker is labeled and you can rename them in the editor afterwards.
Yes. STT.ai Enhanced runs in our private infrastructure — audio is processed and deleted by default. Pro+ adds client-side encryption so transcripts are unreadable without your key, and Private Cloud lets you self-host STT.ai Enhanced entirely in your own VPC.
Use the compare-stt tool to run STT.ai Enhanced against any other supported model on the same audio — you'll see WER, segment count, speaker labels, and confidence scores side-by-side. The STT.ai Enhanced vs Whisper Large V3 comparison is the most commonly run.
Yes. Specify "stt-ai-enhanced" as the model parameter on the /v1/transcribe endpoint. Python and Node.js SDKs include STT.ai Enhanced examples. Free API tier includes 100 minutes/month.
Licensing for STT.ai Enhanced is set by STT.ai; self-hosting depends on their terms. STT.ai's hosted service runs STT.ai Enhanced on managed GPU so you don't need to handle that integration.