chore: Update Live sample agents' models

Co-authored-by: Liang Wu <wuliang@google.com>
PiperOrigin-RevId: 899943556

Author: wuliang229

contributing/samples/live_bidi_streaming_multi_agent/agent.py

@@ -30,11 +30,10 @@ def roll_die(sides: int) -> int:
 roll_agent = Agent(
     name="roll_agent",
     model=Gemini(
-        # see https://docs.cloud.google.com/vertex-ai/generative-ai/docs/migrate
-        # for vertex model names
-        model="gemini-live-2.5-flash-native-audio",  # vertex
-        # see https://ai.google.dev/gemini-api/docs/models for AIS model names
-        # model='gemini-2.5-flash-native-audio-latest',  # for AI studio
+        # Find supported models in Vertex here: https://docs.cloud.google.com/vertex-ai/generative-ai/docs/live-api
+        model="gemini-live-2.5-flash-native-audio",  # Vertex
+        # Find supported models in Gemini API here: https://ai.google.dev/gemini-api/docs/models
+        # model='gemini-2.5-flash-native-audio-preview-12-2025',  # Gemini API
         speech_config=types.SpeechConfig(
             voice_config=types.VoiceConfig(
                 prebuilt_voice_config=types.PrebuiltVoiceConfig(
@@ -85,11 +84,10 @@ def check_prime(nums: list[int]) -> str:
 prime_agent = Agent(
     name="prime_agent",
     model=Gemini(
-        # see https://docs.cloud.google.com/vertex-ai/generative-ai/docs/migrate
-        # for vertex model names
-        model="gemini-live-2.5-flash-native-audio",  # vertex
-        # see https://ai.google.dev/gemini-api/docs/models for AIS model names
-        # model='gemini-2.5-flash-native-audio-latest',  # for AI studio
+        # Find supported models in Vertex here: https://docs.cloud.google.com/vertex-ai/generative-ai/docs/live-api
+        model="gemini-live-2.5-flash-native-audio",  # Vertex
+        # Find supported models in Gemini API here: https://ai.google.dev/gemini-api/docs/models
+        # model='gemini-2.5-flash-native-audio-preview-12-2025',  # Gemini API
         speech_config=types.SpeechConfig(
             voice_config=types.VoiceConfig(
                 prebuilt_voice_config=types.PrebuiltVoiceConfig(
@@ -128,13 +126,11 @@ def get_current_weather(location: str):
 
 
 root_agent = Agent(
-    # find supported models here: https://google.github.io/adk-docs/get-started/streaming/quickstart-streaming/
     model=Gemini(
-        # see https://docs.cloud.google.com/vertex-ai/generative-ai/docs/migrate
-        # for vertex model names
-        model="gemini-live-2.5-flash-native-audio",  # vertex
-        # see https://ai.google.dev/gemini-api/docs/models for AIS model names
-        # model='gemini-2.5-flash-native-audio-latest',  # for AI studio
+        # Find supported models in Vertex here: https://docs.cloud.google.com/vertex-ai/generative-ai/docs/live-api
+        model="gemini-live-2.5-flash-native-audio",  # Vertex
+        # Find supported models in Gemini API here: https://ai.google.dev/gemini-api/docs/models
+        # model='gemini-2.5-flash-native-audio-preview-12-2025',  # Gemini API
         speech_config=types.SpeechConfig(
             voice_config=types.VoiceConfig(
                 prebuilt_voice_config=types.PrebuiltVoiceConfig(

contributing/samples/live_bidi_streaming_parallel_tools_agent/agent.py

@@ -29,7 +29,10 @@ def turn_on_tv():
 
 
 root_agent = Agent(
-    model="gemini-live-2.5-flash-native-audio",
+    # Find supported models in Vertex here: https://docs.cloud.google.com/vertex-ai/generative-ai/docs/live-api
+    model="gemini-live-2.5-flash-native-audio",  # Vertex
+    # Find supported models in Gemini API here: https://ai.google.dev/gemini-api/docs/models
+    # model='gemini-2.5-flash-native-audio-preview-12-2025',  # Gemini API
     name="Home_helper",
     instruction="Be polite and answer all user's questions.",
     tools=[turn_on_lights, turn_on_tv],

contributing/samples/live_bidi_streaming_single_agent/agent.py

@@ -65,11 +65,10 @@ async def check_prime(nums: list[int]) -> str:
 
 
 root_agent = Agent(
-    # see https://docs.cloud.google.com/vertex-ai/generative-ai/docs/migrate
-    # for vertex model names
-    model='gemini-live-2.5-flash-native-audio',  # vertex
-    # see https://ai.google.dev/gemini-api/docs/models for AIS model names
-    # model='gemini-2.5-flash-native-audio-latest',  # for AI studio
+    # Find supported models in Vertex here: https://docs.cloud.google.com/vertex-ai/generative-ai/docs/live-api
+    model='gemini-live-2.5-flash-native-audio',  # Vertex
+    # Find supported models in Gemini API here: https://ai.google.dev/gemini-api/docs/models
+    # model='gemini-2.5-flash-native-audio-preview-12-2025',  # Gemini API
     name='roll_dice_agent',
     description=(
         'hello world agent that can roll a dice of 6 sides and check prime'

contributing/samples/live_bidi_streaming_tools_agent/agent.py

@@ -124,11 +124,10 @@ def stop_streaming(function_name: str):
 
 
 root_agent = Agent(
-    # see https://docs.cloud.google.com/vertex-ai/generative-ai/docs/migrate
-    # for vertex model names
-    model="gemini-live-2.5-flash-native-audio",  # vertex
-    # see https://ai.google.dev/gemini-api/docs/models for AIS model names
-    # model='gemini-2.5-flash-native-audio-latest',  # for AI studio
+    # Find supported models in Vertex here: https://docs.cloud.google.com/vertex-ai/generative-ai/docs/live-api
+    model="gemini-live-2.5-flash-native-audio",  # Vertex
+    # Find supported models in Gemini API here: https://ai.google.dev/gemini-api/docs/models
+    # model='gemini-2.5-flash-native-audio-preview-12-2025',  # Gemini API
     name="video_streaming_agent",
     instruction="""
       You are a monitoring agent. You can do video monitoring and stock price monitoring

contributing/samples/live_tool_callbacks_agent/agent.py

@@ -217,9 +217,10 @@ async def after_tool_async_callback(
 
 # Create the agent with tool callbacks
 root_agent = Agent(
-    # find supported models here: https://google.github.io/adk-docs/get-started/streaming/quickstart-streaming/
-    model="gemini-2.0-flash-live-preview-04-09",  # for Vertex project
-    # model="gemini-live-2.5-flash-preview",  # for AI studio key
+    # Find supported models in Vertex here: https://docs.cloud.google.com/vertex-ai/generative-ai/docs/live-api
+    model="gemini-live-2.5-flash-native-audio",  # Vertex
+    # Find supported models in Gemini API here: https://ai.google.dev/gemini-api/docs/models
+    # model='gemini-2.5-flash-native-audio-preview-12-2025',  # Gemini API
     name="tool_callbacks_agent",
     description=(
         "Live streaming agent that demonstrates tool callbacks functionality. "