General

Nine deprecated TTS endpoints are hidden from the v4 API-reference sidebar. Old bookmarked URLs 301-redirect to the current unified endpoints on /waves/v1/tts and /waves/v1/voice-cloning. Wire-level behavior is unchanged. Existing customer code keeps working.

Hidden from sidebar:

• POST /waves/v1/lightning-v3.1/get_speech, POST /waves/v1/lightning-v3.1/stream, WSS /waves/v1/lightning-v3.1/get_speech/stream (superseded by POST /waves/v1/tts + POST /waves/v1/tts/live + WSS /waves/v1/tts/live)
• POST /waves/v1/lightning-v2/get_speech, POST /waves/v1/lightning-v2/stream, WSS /waves/v1/lightning-v2/get_speech/stream (deprecated, superseded by the same unified routes)
• POST /waves/v1/lightning-large/add_voice (superseded by POST /waves/v1/voice-cloning)
• GET /waves/v1/lightning-large/get_cloned_voices (superseded by GET /waves/v1/voice-cloning)

Retired from docs:

• DELETE /waves/v1/lightning-large (previously documented as “Delete a Voice Clone”) returns HTTP 410 MODEL_DEPRECATED on the platform today and no longer works. Its OpenAPI spec, override, and how-to guide have been removed from the docs. API delete is currently only available from the dashboard at app.smallest.ai → Voices → Delete. Platform work to expose a bearer-key-authenticated POST /waves/v1/voice-cloning/delete route is tracked separately; the endpoint will be re-documented once available.