The fastest, most affordable speech-to-text API. Drop-in OpenAI replacement.
$0.15/hour — that's 40% cheaper than OpenAI Whisper.
Trusted by 2,500+ developers at
"OpenAI's API is too slow"
Waiting 2+ minutes for a 10-minute audio file. Your users are bouncing.
"Transcription costs are eating my margin"
$0.36/hour adds up fast. You're spending $500+/month on audio alone.
"Self-hosting Whisper is a nightmare"
GPU servers, CUDA drivers, model updates. You're a developer, not DevOps.
"I need speaker labels but it's not included"
Building diarization yourself means weeks of extra work.
Switch your base URL. Keep your existing code. Get 200x faster transcription.
No complex setup. No GPU management. Just API calls.
Sign up in 30 seconds. No credit card needed for 30 free hours.
Replace your OpenAI base URL with ours. That's it. Same SDK, same code.
Your transcriptions are now 200x faster. Your users will notice.
so you can process hours of audio in seconds and keep users engaged
so you can scale your app without watching your bill explode
so you can automatically label who said what in meetings and podcasts
so you can switch in 5 minutes without rewriting any code
so you can serve global users without additional setup
so you can stay compliant and keep user audio private
Here's what they're saying after switching
"Switched from OpenAI in 10 minutes. Our podcast processing went from 4 minutes to 8 seconds. Users think we upgraded our entire backend."
"The speaker diarization alone saved us 3 weeks of development. We went from $800/month to $280/month on transcription."
"Finally, an API that just works. 99.8% accuracy on medical terminology where others were getting 'are throw my son' for erythromycin."
Start free. Pay only for what you use. Cancel anytime.
No credit card required
Per-second billing. No minimums.
Volume discounts available for 1000+ hours/month
| Provider | Cost/Hour | Speed | Diarization |
|---|---|---|---|
| SonicAPI ⚡ | $0.15 | 15 sec | ✓ Included |
| OpenAI Whisper | $0.36 | 2+ min | ✗ No |
| Google Cloud STT | ~$1.44 | 1-2 min | $ Extra |
| AWS Transcribe | ~$1.44 | 1-2 min | $ Extra |
Just change your base_url from api.openai.com to api.sonicapi.com. That's literally it. Same SDK, same parameters, same response format. Takes 30 seconds.
Yes. Zero data retention policy. Your audio is processed in ephemeral containers and deleted immediately after transcription. We never store your files or use them for training. SOC 2 Type II compliant.
Our team will do it for you. Literally. Just email us your current implementation and we'll send back the updated code within 24 hours. Free for all paying customers.
99.8% word error rate on standard English. We use Whisper large-v3 with custom post-processing for technical terms, accents, and proper nouns. Better than OpenAI on medical, legal, and technical vocabulary.
Yes. Pay-as-you-go means no contracts, no minimums, no cancellation fees. Stop using it and you stop paying. It's that simple.
Join 2,500+ developers who switched to SonicAPI. Start with 30 free hours — no credit card required.