Smallest AI

Voice AI models for every part of the conversation

About Smallest AI

Smallest AI is a voice AI platform for developers with production-grade audio models behind simple APIs: Lightning text-to-speech with 100 ms latency across 15+ languages, Pulse speech-to-text offering transcription in 38 languages with emotion and speaker detection, the sub-3B Electron small language model, and Hydra, a native speech-to-speech model. The platform is built for rapid prototyping and seamless integration, with code-first access to build real-time voice agents and scale them to enterprise production workloads.

Smallest AI website preview

Live preview of smallest.ai via the WordPress mShots service — it can take a few seconds to generate on a first visit.

Smallest AI: strengths & things to check

Strengths

Free tier available — you can start without paying (freemium model).
Covers voice ai, speech to text, text to speech, api, voice agents — see the focus areas listed in its key facts.
Has 6 close alternatives in the same category on this page, so switching or comparing is easy.

Things to check

The full feature set sits behind a paid plan — check which limits the free tier carries on the official site before committing.
Current plan prices are not listed here (they change too often to print reliably) — confirm the exact price on the official site.
It is one of 1164 tools in the Developer Tools category here — compare it against the alternatives below before you commit.

Derived from this listing's own data (pricing model, focus areas and category) — not a hands-on review score.

Smallest AI pricing

Pricing model	Freemium — a free tier lets you start, and paid plans are available if you need more.
Free access	Yes — free tier, paid upgrades available
Current plan prices	Listed on the official site — prices change, so this directory links out instead of printing a number that may already be stale.
Official site	smallest.ai

Smallest AI key facts

Category: Developer Tools
Pricing: Freemium — a free tier lets you start, and paid plans are available if you need more.
Focus areas: voice ai, speech to text, text to speech, api, voice agents
Official site: smallest.ai

Smallest AI FAQ

How much does Smallest AI cost?

Freemium — a free tier lets you start, and paid plans are available if you need more. Current plans and prices are listed on the official site (smallest.ai).

What is Smallest AI used for?

Voice AI models for every part of the conversation Its focus areas in the Developer Tools category: voice ai, speech to text, text to speech, api, voice agents.

Where can I try Smallest AI?

On its official site, smallest.ai — the Visit Official Site button above goes straight there.

Smallest AI vs alternatives

	Smallest AI	Soniox	Azure AI Speech	Rev AI
Pricing	Freemium — a free tier lets you start, and paid plans are available if you need more.	Paid — this directory does not list a free tier for it.	Freemium — a free tier lets you start, and paid plans are available if you need more.	Freemium — a free tier lets you start, and paid plans are available if you need more.
Focus areas	voice ai, speech to text, text to speech, api, voice agents	speech to text, text to speech, api, voice ai, translation	text to speech, speech to text, microsoft azure, api	speech to text, api, transcription, developers
Official site	smallest.ai	soniox.com	azure.microsoft.com	rev.ai
Directory status	Listed	Listed	Listed	Listed

Side-by-side from each listing's own directory data. Full alternative cards are below.

About the Developer Tools category

Editors, platforms, and services developers rely on to build and ship software. The Developer Tools category on Tools Hub currently lists 1164 tools. Alongside Smallest AI, it includes Amp, Augment Code, omg.dev, SpeakCrate.

FreemiumDeveloper Toolsvoice-aispeech-to-texttext-to-speechapivoice-agents

Alternatives to Smallest AI

Tools in the same Developer Tools category that share focus areas with Smallest AI — worth comparing before you commit:

Developer Tools

Soniox

Multilingual speech AI platform: realtime STT, TTS and translation APIs

Paidspeech-to-texttext-to-speechapivoice-ai

Developer Tools

Azure AI Speech

Microsoft Azure speech services including neural text-to-speech, transcription and translation

Freemiumtext-to-speechspeech-to-textmicrosoft-azureapi

Developer Tools

Rev AI

Developer-first speech-to-text API delivering industry-leading accuracy at global scale.

Freemiumspeech-to-textapitranscriptiondevelopers

Developer Tools

SpeakCrate

Private text to speech with multilingual voices and an OpenAI-compatible API

Freetext-to-speechself-hostedopen-sourceapi

Developer Tools

WhisperAPI

Fast, accurate video and audio transcription API powered by OpenAI Whisper

Freemiumtranscriptionapispeech-to-textwhisper

Developer Tools

Action1

Developer infrastructure, handled

Freemiummonitoringdeploymentapiinfrastructure

More in Developer Tools

Comparing tools in the Developer Tools category? These related listings are worth a look: Amp — The coding agent that never stops working; Augment Code — Agentic software development at organizational scale; omg.dev — Your coding agent, always on.