Smallest AI

Smallest AI is a voice AI platform for text-to-speech, speech-to-text, voice agents, and audio models, built for real-time workflows and enterprise deployment.

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Voice AI platform for production audio workflows

Smallest AI is a voice AI platform with APIs and workflows for text-to-speech, speech-to-text, voice agents, and related audio models. The product pages position it for real-time voice applications, production deployments, and teams that need to build with a single platform rather than separate point tools.

The site highlights Lightning for fast text-to-speech, Pulse for low-latency transcription, and Hydra for speech-to-speech. It also presents a voice-agent interface for configuring agents, voices, and languages, along with enterprise options such as on-prem deployment, compliance features, and support controls.

Core capabilities

Text-to-speech API

Generate speech with Lightning TTS for real-time voice agents. The home page states 100 ms latency across 15+ languages, and the developer example shows a simple API call returning audio output.

Speech-to-text API

Transcribe audio with Pulse, which the speech-to-text page describes as real-time transcription across 38+ languages with 64 ms latency, plus language identification and speaker labeling.

Voice agent workflow

Use voice agents from a single production-oriented interface. The home page says you can configure the agent, choose a voice, set languages, and go live from one interface.

Adjacent voice models

Access speech-to-speech and voice cloning offerings. The home page lists Hydra as a native speech-to-speech model, while pricing notes voice cloning and professional voice clone support for enterprise.

Enterprise plan controls

Choose deployment and support options by plan. The pricing page shows pay-as-you-go and enterprise plans, with enterprise features such as on-prem deployment, support, SLA, prompt engineering support, and compliance options.

Common workflows

Launch a production voice agent
Teams building conversational products can use the voice-agent workflow to configure an agent, pick a voice, set languages, and launch from one interface.
Generate low-latency speech
Applications that need fast audio generation can use Lightning TTS for real-time playback, including agent responses and other interactive voice experiences.
Transcribe multilingual conversations
Support, operations, and transcription products can use Pulse to convert live or recorded audio into text with language identification and speaker labeling.
Deploy under enterprise requirements
Organizations with stricter data, support, or deployment requirements can evaluate the enterprise plan for on-prem deployment, SLA, and compliance-related controls.
Build a full voice stack
Teams that need inbound audio understanding and outbound voice output can combine STT, TTS, and speech-to-speech products within the same platform.

Pros and Cons

Pros

Covers several core voice tasks in one platform, including TTS, STT, voice agents, speech-to-speech, and voice cloning.
Offers low-latency and realtime-focused products, including Lightning TTS and Pulse STT.
Provides both self-serve pricing and an enterprise path for larger deployments.
Includes deployment and compliance options on the pricing page, including on-prem deployment, SSO/RBAC, SOC 2, and HIPAA-related positioning for enterprise plans.

Cons

Some pricing and enterprise capabilities require direct contact or are only shown as custom/enterprise options.
The site’s feature coverage is split across several product pages, so buyers may need to review multiple pages to compare models and deployment options.
Pulse Pro is described as pre-recorded only and available only in English, which limits its scope compared with the realtime Pulse option.

FAQ

What does Smallest AI offer?

Smallest AI provides APIs for text-to-speech, speech-to-text, voice agents, and speech-to-speech. The home page and product pages position it as a voice AI platform for real-time and production use.

Does Smallest AI have both self-serve and enterprise options?

The site presents pricing for pay-as-you-go usage and an enterprise plan. The pricing page also shows free credits to start and says enterprise can include features such as on-prem deployment, support, and compliance options.

Can Pulse be used for real-time voice workloads?

Yes. The speech-to-text page says Pulse supports real-time transcription, and the pricing page lists a realtime Pulse option. The site also frames voice agents as part of the production platform.

How many languages does Pulse support?

The speech-to-text page says Pulse supports 38+ languages, while the page copy also highlights global accents and dialects. The pricing page separately lists Pulse Pro as pre-recorded and available only in English.

How do teams get started with Smallest AI?

The site includes developer examples for API usage and says the platform is built for rapid prototyping and seamless integration. The home page also references a single interface for configuring agents, voices, and languages.

Quick Facts

Category: Voice AI platform
Primary products: Lightning TTS, Pulse STT, Hydra speech-to-speech, voice agents
Pricing model: Free credits, pay-as-you-go, and enterprise plans
Source domain: smallest.ai
Primary users: Developers and enterprise teams building voice workflows
Deployment options: Cloud and enterprise on-prem options