From da8d3a2d8074b394a881a135d33e41284175f1b0 Mon Sep 17 00:00:00 2001
From: Mark Backman <mark@daily.co>
Date: Wed, 29 Apr 2026 11:05:12 -0400
Subject: [PATCH 1/2] feat(soniox): update default TTS model to tts-rt-v1

Promotes the Soniox TTS default model from `tts-rt-v1-preview` to the
generally available `tts-rt-v1`.
---
 src/pipecat/services/soniox/tts.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pipecat/services/soniox/tts.py b/src/pipecat/services/soniox/tts.py
index 45c88156e..5bc7d33da 100644
--- a/src/pipecat/services/soniox/tts.py
+++ b/src/pipecat/services/soniox/tts.py
@@ -184,7 +184,7 @@ class SonioxTTSService(WebsocketTTSService):
         """
         # Initialize default_settings
         default_settings = self.Settings(
-            model="tts-rt-v1-preview",
+            model="tts-rt-v1",
             voice="Adrian",
             language=Language.EN,
         )

From 6e2008a7a621662228debb8cfdf11dac254c871a Mon Sep 17 00:00:00 2001
From: Mark Backman <mark@daily.co>
Date: Wed, 29 Apr 2026 11:09:38 -0400
Subject: [PATCH 2/2] Add changelog for #4386

---
 changelog/4386.changed.md | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 changelog/4386.changed.md

diff --git a/changelog/4386.changed.md b/changelog/4386.changed.md
new file mode 100644
index 000000000..5ed3ad57c
--- /dev/null
+++ b/changelog/4386.changed.md
@@ -0,0 +1 @@
+- Updated the default `SonioxTTSService` model from `tts-rt-v1-preview` to the generally available `tts-rt-v1`.