Last updated 08-22-2026
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Smallest AI
Smallest AI ships real-time voice agents plus the audio models underneath them: Lightning text-to-speech, Pulse speech-to-text, Electron small language models, and Hydra speech-to-speech. Teams configure agents in a browser playground, connect telephony or web widgets, and call production APIs from JavaScript, Python, or REST.
Unlike stacks that bolt a large LLM onto generic TTS, Smallest AI builds compact models for latency-sensitive voice, claiming 100 ms TTS across 15+ languages and Pulse transcription in 38 languages with emotion and speaker detection. Pay-as-you-go agent pricing stacks hosting, STT, LLM, TTS, and telephony layers, with speech-to-speech paths as low as $0.05 per minute depending on architecture.
Developers prototyping IVR replacements, sales dialers, and support bots use Smallest AI for unlimited agents, 20 included concurrency slots, and $10 in starter credits. Enterprise customers get custom SLAs, SSO, HIPAA add-ons, on-premise deployment, and forward-deployed engineering support.
Lightning TTS targets 100 ms latency across 15+ languages for live voice agents
Pulse speech-to-text covers 38 languages with emotion and speaker detection
Electron is a sub-3B language model positioned against GPT-4.1 for agent reasoning
Pay-as-you-go starts with $10 in free credits and $0.01 per minute Smallest hosting fees
Voice agent calls run from $0.05 to $0.21 per minute depending on model stack and architecture
SOC 2 Type 2, GDPR, HIPAA, and ISO 27001 compliance with optional on-premise deployment
Owns the full voice stack from TTS and STT through agents and telephony.
Sub-3B Electron model targets lower latency than routing every turn through a massive LLM.
$10 starter credits and pay-as-you-go billing suit prototypes before enterprise contracts.
Compliance coverage spans SOC 2, GDPR, HIPAA, and ISO 27001 for regulated buyers.
Per-minute agent pricing varies widely ($0.05 to $0.21) based on model and architecture choices.
Advanced campaigns, text messaging, and some enterprise features are marked coming soon on pay-as-you-go.
Guaranteed uptime SLAs and priority support require the enterprise plan.
What does Smallest AI build?
Smallest AI builds real-time voice agents and the underlying audio models that power them, including Lightning TTS, Pulse STT, Electron SLMs, and Hydra speech-to-speech. Smallest AI exposes these through a browser agent builder and production REST APIs.
How much does Smallest AI cost?
Smallest AI pay-as-you-go includes $10 in free credits with usage-based billing and no long-term contract. Smallest AI lists $0.01 per minute hosting, roughly $0.009 per minute STT, and voice agent stacks from $0.05 to $0.21 per minute depending on models.
What languages does Smallest AI support?
Smallest AI Lightning TTS covers 15+ languages with low-latency streaming, while Pulse STT transcribes 38 languages with emotion and speaker detection. Smallest AI agents let you pick voices and languages from one production interface.
Can Smallest AI handle phone calls?
Yes. Smallest AI rents phone numbers at $10 per number per month and supports external telephony with bring-your-own-trunk options. Smallest AI bills telephony at cost alongside agent hosting and model minutes.
Is Smallest AI enterprise ready?
Smallest AI states it is SOC 2 Type 2, GDPR, HIPAA, and ISO 27001 compliant, with enterprise plans offering 99.99% uptime SLAs, SSO, on-premise deployment, and dedicated engineering support. Smallest AI also sells a HIPAA zero data retention add-on for $1,000 per month.
How do developers integrate Smallest AI?
Smallest AI documents REST endpoints such as Lightning TTS at api.smallest.ai and ships SDK-friendly JSON requests with API keys. Smallest AI includes 20 concurrency slots on pay-as-you-go and unlimited agents on both tiers.