Smallest AI
Voice AI infrastructure with Lightning text-to-speech, Pulse speech-to-text, the Hydra speech-to-speech model and a hosted voice-agent platform, all under one API key.
About Smallest AI
Building phone and web voice agents means stitching together speech-to-text, an LLM, text-to-speech and telephony, and each layer adds latency and cost.
Who it’s for
- Developers calling low-latency TTS or STT models from Pipecat, LiveKit or their own stack
- Businesses running voice agents for inbound and outbound phone calls
When to consider it
Consider Smallest AI when you want both raw speech models and a hosted voice-agent platform with telephony from one provider, with an on-premise option for enterprise deployments.
Tradeoffs & limitations
- Pay as you go starts with $10 in free credits; Lightning V3.1 text-to-speech is listed at about $0.175 per 10K characters and Pulse pre-recorded speech-to-text at about $0.003 per minute.
- On pay as you go, TTS is capped at 15 concurrent streams, 100 requests per minute and 450M characters a month; on-premise deployment, professional voice clones and the Electron model require the Enterprise plan, and the Hydra speech-to-speech model is in beta with access by request.
SOTA overview · Documentation-based assessment · Sources & review method
Updates
No updates shared yet.
Discussion
Newest firstAsk a question or share how you use Smallest AI.
Keep it helpful. Community rules
Loading discussion…
Sources & review method
Documentation-based assessment · Nov 1, 2026 · Prepared with AI assistance; not a hands-on benchmark.
- Smallest AI official website
- Smallest AI model pricing
- Smallest AI agent pricing
- Smallest AI documentation
Checked by SOTA · AI-assisted documentation review. Selection advice is our assessment; verify current requirements for your deployment.
Import history & original evidence
Smallest AI official website
Voice AI infrastructure with Lightning text-to-speech, Pulse speech-to-text, the Hydra speech-to-speech model and a hosted voice-agent platform, all under one API key.
Based on official pages and announcements checked on 2026-11-01. No hands-on test, performance benchmark or popularity ranking is claimed.