Smallest.ai documents a capability change: “Voice cloning: Lightning v3.1 Pro support The voice-cloning API now accepts model: lightning-v3.1-pro to clone onto the premium Pro pool, alongside the…”
The voice-cloning API now accepts model: lightning-v3.1-pro to clone onto the premium Pro pool, alongside the default lightning-v3.1. Pair the resulting voice_id with the matching TTS model (lightning_v3.1 or lightning_v3.1_pro). The spec and model card previously stated cloning was unavailable on Pro; that was incorrect and is now fixed.
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