pipecat/changelog/4341.added.md

• Added XAITTSService for streaming text-to-speech using xAI's WebSocket TTS endpoint (wss://api.x.ai/v1/tts). Streams text.delta chunks up and base64 audio.delta chunks down on the same connection so audio begins flowing before the full utterance finishes synthesizing; complements the batch-HTTP XAIHttpTTSService. Defaults to raw PCM output so TTSAudioRawFrame needs no decoding. The xai optional extra now pulls in pipecat-ai[websockets-base].