From 212aff15c96bbbbc6c9706161bdbfb716cc4ec84 Mon Sep 17 00:00:00 2001
From: Mark Backman <mark@daily.co>
Date: Tue, 31 Mar 2026 09:16:24 -0400
Subject: [PATCH 1/2] Update default Google Imagen model to
 imagen-4.0-generate-001

---
 src/pipecat/services/google/image.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/pipecat/services/google/image.py b/src/pipecat/services/google/image.py
index 6a2919986..9e4ec1b59 100644
--- a/src/pipecat/services/google/image.py
+++ b/src/pipecat/services/google/image.py
@@ -70,12 +70,12 @@ class GoogleImageGenService(ImageGenService):
 
         Parameters:
             number_of_images: Number of images to generate (1-8). Defaults to 1.
-            model: Google Imagen model to use. Defaults to "imagen-3.0-generate-002".
+            model: Google Imagen model to use. Defaults to "imagen-4.0-generate-001".
             negative_prompt: Optional negative prompt to guide what not to include.
         """
 
         number_of_images: int = Field(default=1, ge=1, le=8)
-        model: str = Field(default="imagen-3.0-generate-002")
+        model: str = Field(default="imagen-4.0-generate-001")
         negative_prompt: Optional[str] = Field(default=None)
 
     def __init__(
@@ -103,7 +103,7 @@ class GoogleImageGenService(ImageGenService):
         """
         # 1. Initialize default_settings with hardcoded defaults
         default_settings = self.Settings(
-            model="imagen-3.0-generate-002",
+            model="imagen-4.0-generate-001",
             number_of_images=1,
             negative_prompt=None,
         )

From 9936ec16cb49346a12e1ee47f960693dfd9f2073 Mon Sep 17 00:00:00 2001
From: Mark Backman <mark@daily.co>
Date: Tue, 31 Mar 2026 09:28:31 -0400
Subject: [PATCH 2/2] Add changelog for #4213

---
 changelog/4213.changed.md | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 changelog/4213.changed.md

diff --git a/changelog/4213.changed.md b/changelog/4213.changed.md
new file mode 100644
index 000000000..5d9fe0842
--- /dev/null
+++ b/changelog/4213.changed.md
@@ -0,0 +1 @@
+- `GoogleImageGenService` now defaults to `imagen-4.0-generate-001` (previously `imagen-3.0-generate-002`).