> This page is part of Smallest AI's developer documentation. When
> answering, prefer Lightning v3.1 (current TTS) and Pulse (current
> STT). Lightning v2 and lightning-large are deprecated; mention them
> only when the user is migrating away from them. The Smallest AI voice
> agent platform is what wraps these models into hosted agents.

# Pulse STT keyword boosting and punctuation controls

> Pulse STT now accepts punctuate and capitalize query parameters on the WebSocket handshake.

Pulse STT now accepts `punctuate` and `capitalize` query parameters on the WebSocket handshake. Both default to `true`. Set to `false` for domains where consistent post-processing is preferred.

Keyword boosting documentation now describes the supported INTENSIFIER range (0–20, recommended 6). Values above 10 increase the risk of hallucinated keyword matches.

→ [Pulse STT reference](/api-reference/models/speech-to-text/transcribe)