lightning_v3.1 covers 12 languages with voice cloning; lightning_v3.1_pro is a premium voice pool (American, British, and Indian accents) selected per-request via the same connection.
Provider identifier: smallest
Vault Credential
Setup
1
Get a Smallest AI API key
Sign in at app.smallest.ai/dashboard → Developer → API Keys.
2
Add to Rapida vault
In the Rapida dashboard → Providers and Models, add a credential, select provider Smallest AI, enter
key = your API key.The same credential is used for both Smallest AI STT and TTS.3
Configure the assistant
In the assistant’s deployment settings → Audio Output (TTS), select Smallest AI and pick a Model:
lightning_v3.1— standard pool, voice cloning supported, 12 languageslightning_v3.1_pro— premium pool with curated American, British, and Indian accented voices (English + Hindi)
Pairing a voice with the wrong model pool is rejected by the API — the provider surfaces this as an error rather than hanging or producing garbled audio.
Smallest AI STT
Smallest AI Pulse speech-to-text
TTS Overview
All TTS providers