Looking for a Deepgram alternative?
Sempera handles complete phone conversations with AI. Deepgram provides speech recognition APIs as a standalone service.
In production at
Sempera is a complete voice AI agent platform that handles phone calls autonomously. Deepgram is a speech recognition and text-to-speech API provider. Sempera uses speech recognition as one component of a full voice agent stack. Deepgram provides speech recognition as a standalone service for developers building their own applications.
What teams run into with Deepgram
Deepgram is one layer of the stack
Deepgram is speech-to-text. To take a phone call you still need an LLM, TTS, telephony, dialogue management, and integration layer — each from a different vendor.
Latency is the sum of your provider chain
Best-in-class STT doesn't guarantee sub-second end-to-end latency once you chain it with an external LLM and TTS. Sempera owns the full path.
Compliance is per-provider
You audit Deepgram for STT, then your LLM provider, then your TTS provider, then your telephony layer. Sempera answers compliance questions for the whole call.
Why teams switch to Sempera
Complete platform vs single API
Sempera provides the full voice AI stack. Deepgram provides one component (speech recognition). For enterprises that need AI agents handling calls, Sempera is the complete solution.
Sempera vs Deepgram, line by line
| Feature | Sempera | Deepgram |
|---|---|---|
| Product | Complete voice AI agent platform | Speech recognition API |
| Handles full calls | Yes | No (transcription only) |
| AI reasoning | Included (proprietary LLM) | Not included |
| TTS | Included | Available as separate API |
| Telephony | Included | Not included |
| Target user | Enterprise CX teams | Developers building custom apps |
See the full breakdown: Sempera vs Deepgram.
Deepgram alternative FAQ
No. Sempera uses proprietary speech recognition models trained on phone-quality audio. Sempera's transcription is optimized for telephony conditions (background noise, accents, cross-talk) and integrated into the full voice agent pipeline for minimal latency.
