Voice Free

Stellon Labs

Tiny frontier AI models built to run directly on edge devices

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PricingFree
Starting price$0
Free planYes
Free trialYes
APIUnknown
Open sourceYes
DeploymentSelf Hosted
Last verifiedJuly 30, 2026
Overview

Tool overview

Stellon Labs is listed under Voice AI tools.

Summary

What is Stellon Labs?

Stellon Labs develops compact speech, language, and video models for smartphones, wearables, robots, laptops, and embedded systems. Its first public model, KittenTTS, is an Apache-2.0 text-to-speech model designed to run locally without a GPU.

Best fit

Best for

Developers and hardware teams deploying speech models on constrained edge devices

Audience

Who is it for?

Edge AI developersEmbedded systems engineersRobotics teamsMobile application developersSpeech AI researchers
Recommendation

Decision note

Suitable for evaluation after confirming final commercial terms, permissions, data handling, lifecycle status, and edit-screen aliases. Keep Needs Review enabled until a human verifies the published profile.

Capabilities

Key features

Sub-25MB KittenTTS model for local speech generation

CPU-friendly inference without a required GPU

14M, 40M, and 80M parameter variants

Open-source Python package and model weights

Designed for smartphones, wearables, and embedded hardware

Custom model training and deployment support

Workflows

Use cases

Adding offline speech to edge applications

Running TTS on low-memory hardware

Prototyping voice features without cloud inference

Embedding speech in robots and wearables

Evaluating custom tiny-model deployments

Strengths

Pros

  • Very small models reduce memory and compute needs
  • Local inference can reduce network dependence
  • Apache-2.0 code supports commercial evaluation
  • Official releases provide installable Python packages
Considerations

Cons

  • Public product scope currently centers on speech models
  • Model quality must be tested on target hardware
  • Custom commercial work requires direct discussion
Considerations

Limitations

Tiny models trade capacity for efficiency. Teams should benchmark voice quality, pronunciation, supported language coverage, latency, memory use, licensing obligations, and device-specific performance before production deployment.

Cost

Pricing details

Pricing modelFree
Starting price$0
Free planYes
Free trialYes
Pricing context

Billing options

Open-source modelCustom training by quoteCustom deployment by quote
Pricing context

Pricing note

KittenTTS is available as an open-source model and package at no software charge. Stellon Labs also invites companies to discuss custom models, training, and deployments; those commercial terms are not publicly priced.

View official pricing
Compatibility

Supported languages

  • English
Connectivity

Integrations

Python

PyTorch

Hugging Face

CPU inference

Specs

Technical details

PlatformsWeb
Multilingual supportUnknown
Login requiredNo
Open sourceYes
LicenseApache-2.0
DeploymentSelf Hosted
CompanyStellon Labs
Launch year2025
Current version0.8.1
Models / versions14M parameters 40M parameters 80M parameters
Editions / plansKittenTTS Nano KittenTTS Micro KittenTTS Mini
Data confidenceHigh
Last verifiedJuly 30, 2026
Documentation → Source code → Release notes → Data source →
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Answers

Frequently asked questions

Stellon Labs develops compact speech, language, and video models for smartphones, wearables, robots, laptops, and embedded systems. Its first public model, KittenTTS, is an Apache-2.0 text-to-speech model designed to run locally without a GPU.
Developers and hardware teams deploying speech models on constrained edge devices
The listed pricing model for Stellon Labs is free. Pricing can change, so users should verify the latest plan details on the official website.
Yes. The current profile indicates that a free trial is available.
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