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Smallest.ai

by Smallest.aiNo ratings yet

Voice AI models and agent platform for speech, transcription, and voice agents

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Linked from smallest.ai · checked 29 Oct

Tool type
Voice AI model and agent platform
Made for
Developers, enterprises, and SMBs
Runs on
Web app and API
Agents are configured in the web interface; models are called through the Smallest API.
Last checked
29 Oct 2026
2 product sources

What it does

Smallest.ai offers voice AI models and an agent platform. Its audio models include Lightning V3.1 Pro for text-to-speech, Pulse Realtime for speech-to-text, Electron as a small language model, and Hydra for speech-to-speech. Text becomes generated speech, audio becomes transcripts, and agents can run live conversations.

Users configure an agent, choose a voice, set languages, and go live from one interface, or call the text-to-speech API directly from code. A public voice playground lets visitors hear the voice catalog without signing in and then take a voice ID to the API. Voice cloning from a short recording is also offered.

The product fits developers building voice agents and teams running production workloads. Getting started requires an account through the sign-up page, and API calls need an API key. Agent cost depends on the models and telephony chosen, while phone numbers, extra concurrency, and some add-ons are billed separately.

What it can do

  • Text-to-speech generation with Lightning V3.1 Pro, listed at 100 ms latency across 15+ languages
  • Speech-to-text transcription in 38 languages with emotion and speaker detection (Pulse Realtime)
  • Electron, a sub-3B small language model
  • Hydra, a native speech-to-speech model built for production
  • Voice agent configuration, voice selection, and language setup from a single interface
  • Voice cloning from a short recording of a brand or founder voice

Before you choose

  • Agent pricing depends on the architecture (cascading or speech-to-speech) and the models selected, so per-minute cost varies.
  • Phone numbers, telephony provider costs, knowledge base storage, and concurrency beyond 20 included are billed separately.
  • On-premise deployment and HIPAA zero data retention are listed as add-ons at $1000/mo.

Listed under

Get started

Sign-up leads to the app login; API calls require an API key from the console.

  1. Create an account through the Sign Up link at app.smallest.ai/login.
  2. Obtain an API key from the console to authenticate requests.
  3. Browse the voice playground, pick a voice, and use its voice ID in the TTS API request.
Sign up for an account

Plans and prices

Prices in USD

Pay-as-you-go usage pricing with no commitments or long-term contracts. The plan starts with $10 in free credits as a starting allowance. Agent per-minute cost depends on the models selected; Enterprise uses tailored pricing via sales.

Pay as you goUsage-basedAgent price listed as $0.09 - $0.21/minute depending on the models; as low as $0.05/minute is listed for the Enterprise column.Text message at $0.005 per message.
  • Starts with $10 in free credits
  • Access to full suite of APIs and models
Enterprise planCustomTailored pricing; contact sales.
  • Dedicated infrastructure with enterprise-grade SLAs
  • Advanced security, SSO, and compliance support

Source: smallest.ai/pricing/agents, checked 29 Oct 2026. Prices can change; check before you buy.

Sources for this overview

Product pages, documentation, and pricing checked 29 Oct 2026. Each source supports part of the overview; availability and prices can change.

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What’s changed

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Signals

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Data and security

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Where this comes from

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Last checked 29 Oct 2026. Every field keeps its source and date; unknown means we couldn’t confirm it.