> 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 Beta tag on South Indian streaming languages

> Tamil, Telugu, Kannada, and Malayalam (plus the multi-south-indic aggregator) are now marked Beta on the Pulse model card and the STT overview.

Tamil, Telugu, Kannada, and Malayalam (plus the `multi-south-indic` aggregator) are now marked **Beta** on the [Pulse model card](/model-cards/speech-to-text/pulse) and the [STT overview](/models/speech-to-text/overview). Accuracy improvements are ongoing. These codes remain India-region only (`wss://api.smallest.ai/waves/v1/stt/live`); the US endpoint continues to reject them with `LANGUAGE_NOT_ENABLED_IN_REGION`.

Also cleaned up stale `multi` (bare) language references in the pulse-stt-ws-overrides.yml enum, the pulse-stt API reference, and the voice-cloning-openapi.yaml language example. `multi` was replaced by the current `multi-eu` / `multi-asian` / `north_indic` / `multi-south-indic` aggregators when the streaming enum was revised. Pre-recorded aggregators (`multi-eu`, `multi-asian`) are unchanged.

→ [Pulse model card](/model-cards/speech-to-text/pulse#supported-languages)