Skip to content
SPECIFICTION
Get listed

Cobalt VoiceBio

cobaltspeech.com

Free trial WindowsmacOSLinuxAPISelf-hosted
Visit cobaltspeech.com
Spec score 8.0 #5 of 22 in AI Voice Biometrics Software

What it is

Cobalt VoiceBio provides voice biometrics for speaker verification and identification, including text-independent operation. It converts speech into voiceprints representing a speaker independently of the words spoken. StreamingVerify compares live audio with one voiceprint and returns a similarity score and match decision; StreamingIdentify compares live audio with a list and returns the best match or none. StreamingEnroll creates voiceprints and reports how much more audio is needed to complete enrollment. Voiceprints can be compared without resending audio or vectorized for indexing and downstream tasks. The engine runs on customer hardware, keeping audio and voiceprints inside that infrastructure. Cobalt lists embedded, on-premise, and private cloud deployment options. VoiceBio serves a gRPC API and includes pre-generated Go and Python SDKs, with instructions for generating SDKs for other languages. The trial supports 8 kHz and 16 kHz speech and is listed at free for 100 days; Arm64 is not included. Listed system requirements are an x86_64 CPU, 500 MB disk space, and 2 GB RAM. Cobalt describes using VoiceBio to authenticate customers, employees, and partners, and says it can be combined with passcodes or other credentials. Pricing is available on request.

Spec sheet

Purpose
VoiceBio provides voice biometrics for speaker verification and identification, including text-independent operation.Read 7 Oct 2026 · cobaltspeech.com
Platforms
Linux is listed for production; Windows and Mac are listed for Docker Desktop testing and are not recommended for production.Read 7 Oct 2026 · cobaltspeech.com
Deployment
The maker lists embedded, on-premise, and private cloud deployment options for VoiceBio.Read 7 Oct 2026 · cobaltspeech.com
Company
Cobalt Speech and Language says it provides speech and language technology for small and large organizations, with products deployable inside customer infrastructure.Read 7 Oct 2026 · cobaltspeech.com
API and SDKs
VoiceBio serves a gRPC API and provides pre-generated Go and Python SDKs, with instructions to generate SDKs for other languages.Read 7 Oct 2026 · docs.cobaltspeech.com
Audio models
The trial page states support for 8 kHz and 16 kHz speech.Read 7 Oct 2026 · cobaltspeech.com
Data handling
The VoiceBio engine runs on the customer’s hardware so audio and voiceprints stay inside the customer’s infrastructure.Read 7 Oct 2026 · docs.cobaltspeech.com
Enrollment
StreamingEnroll creates voiceprints and reports how much more audio is needed to complete enrollment.Read 7 Oct 2026 · docs.cobaltspeech.com
Identification
StreamingIdentify compares live audio with a list of voiceprints and returns the best match or none.Read 7 Oct 2026 · docs.cobaltspeech.com
System requirements
The trial page lists an x86_64 CPU, 500 MB disk space, and 2 GB RAM.Read 7 Oct 2026 · cobaltspeech.com
Use case
The maker describes using VoiceBio to authenticate customers, employees, and partners, and says it can be combined with passcodes or other credentials.Read 7 Oct 2026 · cobaltspeech.com
Verification
StreamingVerify compares live audio with one voiceprint and returns a similarity score and match decision.Read 7 Oct 2026 · docs.cobaltspeech.com
Voiceprint tools
Voiceprints can be compared without resending audio or vectorized for indexing and downstream tasks.Read 7 Oct 2026 · docs.cobaltspeech.com
Voiceprints
It converts speech into voiceprints that represent a speaker’s voice independently of what they said.Read 7 Oct 2026 · docs.cobaltspeech.com

Plans and prices

VoiceBio Free trial Free 100 day trial; Arm64 is not included Read 7 Oct 2026 · cobaltspeech.com

Every Cobalt VoiceBio plan and price →

Strong points and limits

Strong points

  • Supports verification and identification of speakers.
  • Voiceprints can be created and compared separately.
  • Engine runs on customer hardware.
  • Provides a gRPC API and Go and Python SDKs.
  • 100-day trial supports 8 kHz and 16 kHz speech.

Limits

  • Pricing is available on request.
  • Arm64 is not included in the trial.
  • Listed system requirements include 2 GB RAM.

Who it suits

It suits organizations seeking voice-based speaker verification or identification and able to run the engine within their own infrastructure. The listed use cases include authentication for customers, employees, and partners.

Verdict

VoiceBio offers verification, identification, and enrollment workflows while keeping audio and voiceprints in customer infrastructure. Check the trial’s architecture exclusion and system requirements before deployment.

Where Specifiction places it

Alternatives to Cobalt VoiceBioAll alternatives →