Real-Time Voice AI Platform

Smallest AI is a real-time voice AI platform built on smaller, specialized models instead of one massive general-purpose system, delivering faster, more efficient performance for speech synthesis, transcription, and conversational voice agents.

Core Models

Lightning

Text-to-speech at ~100ms latency across 15+ languages, with instant voice cloning from just 5-15 seconds of audio.

Pulse

Speech-to-text with speaker and emotion detection across 38+ languages, plus built-in PII/PCI redaction.

Electron

A sub-3B parameter language model optimized for voice agents, with an OpenAI-compatible API and sub-300ms response time.

Hydra

One of the first native speech-to-speech models built for production, enabling full-duplex conversation without a cascaded pipeline.

Atoms: The No-Code Voice Agent Platform

Atoms lets teams create, test, and deploy production voice agents in minutes, with knowledge base grounding, outbound calling campaigns, and telephony in 40+ countries. A full conversational turn completes in under 800ms end to end.

Key Features

• Sub-800ms end-to-end response time for full agent turns
• No-code voice agent builder with knowledge base grounding
• Telephony in 40+ countries with outbound calling campaigns
• Mobile SDKs for iOS, Android, React Native, and Flutter

Smallest AI is SOC 2 Type II, HIPAA, GDPR, ISO 27001, and PCI-DSS compliant, with on-premise deployment for regulated industries like healthcare, finance, and debt collection.

Not one massive model that knows everything, but many small ones that each know exactly what matters.