docs: update GOOGLE_GENAI_USE_VERTEXAI in tutorials and examples

Author: haranrk

docs/tutorials/agent-team.md

@@ -117,7 +117,7 @@ print(f"OpenAI API Key set: {'Yes' if os.environ.get('OPENAI_API_KEY') and os.en
 print(f"Anthropic API Key set: {'Yes' if os.environ.get('ANTHROPIC_API_KEY') and os.environ['ANTHROPIC_API_KEY'] != 'YOUR_ANTHROPIC_API_KEY' else 'No (REPLACE PLACEHOLDER!)'}")
 
 # Configure ADK to use API keys directly (not Agent Platform for this multi-model setup)
-os.environ["GOOGLE_GENAI_USE_VERTEXAI"] = "False"
+os.environ["GOOGLE_GENAI_USE_ENTERPRISE"] = "False"
 
 
 # @markdown **Security Note:** It's best practice to manage API keys securely (e.g., using Colab Secrets or environment variables) rather than hardcoding them directly in the notebook. Replace the placeholder strings above.

docs/tutorials/multi-tool-agent.md

@@ -339,28 +339,28 @@ agent will be unable to function.
     and copy-paste the following code.
 
         ```env title="multi_tool_agent/.env"
-        GOOGLE_GENAI_USE_VERTEXAI=FALSE
+        GOOGLE_GENAI_USE_ENTERPRISE=FALSE
         GOOGLE_API_KEY=PASTE_YOUR_ACTUAL_API_KEY_HERE
         ```
 
         When using Java, define environment variables:
 
         ```console title="terminal"
-        export GOOGLE_GENAI_USE_VERTEXAI=FALSE
+        export GOOGLE_GENAI_USE_ENTERPRISE=FALSE
         export GOOGLE_API_KEY=PASTE_YOUR_ACTUAL_API_KEY_HERE
         ```
 
         When using TypeScript, the `.env` file is automatically loaded by the `import 'dotenv/config';` line at the top of your `agent.ts` file.
 
         ```env title="multi_tool_agent/.env"
-        GOOGLE_GENAI_USE_VERTEXAI=FALSE
+        GOOGLE_GENAI_USE_ENTERPRISE=FALSE
         GOOGLE_GENAI_API_KEY=PASTE_YOUR_ACTUAL_API_KEY_HERE
         ```
 
         When using Go, define environment variables in your terminal or use a `.env` file:
 
         ```bash title="terminal"
-        export GOOGLE_GENAI_USE_VERTEXAI=FALSE
+        export GOOGLE_GENAI_USE_ENTERPRISE=FALSE
         export GOOGLE_API_KEY=PASTE_YOUR_ACTUAL_API_KEY_HERE
         ```
 
@@ -374,31 +374,31 @@ agent will be unable to function.
     the following code and update the project ID and location.
 
         ```env title="multi_tool_agent/.env"
-        GOOGLE_GENAI_USE_VERTEXAI=TRUE
+        GOOGLE_GENAI_USE_ENTERPRISE=TRUE
         GOOGLE_CLOUD_PROJECT=YOUR_PROJECT_ID
         GOOGLE_CLOUD_LOCATION=LOCATION
         ```
 
         When using Java, define environment variables:
 
         ```console title="terminal"
-        export GOOGLE_GENAI_USE_VERTEXAI=TRUE
+        export GOOGLE_GENAI_USE_ENTERPRISE=TRUE
         export GOOGLE_CLOUD_PROJECT=YOUR_PROJECT_ID
         export GOOGLE_CLOUD_LOCATION=LOCATION
         ```
 
         When using TypeScript, the `.env` file is automatically loaded by the `import 'dotenv/config';` line at the top of your `agent.ts` file.
 
         ```env title=".env"
-        GOOGLE_GENAI_USE_VERTEXAI=TRUE
+        GOOGLE_GENAI_USE_ENTERPRISE=TRUE
         GOOGLE_CLOUD_PROJECT=YOUR_PROJECT_ID
         GOOGLE_CLOUD_LOCATION=LOCATION
         ```
 
         When using Go, define environment variables in your terminal or use a `.env` file:
 
         ```bash title="terminal"
-        export GOOGLE_GENAI_USE_VERTEXAI=TRUE
+        export GOOGLE_GENAI_USE_ENTERPRISE=TRUE
         export GOOGLE_CLOUD_PROJECT=YOUR_PROJECT_ID
         export GOOGLE_CLOUD_LOCATION=LOCATION
         ```
@@ -412,28 +412,28 @@ agent will be unable to function.
     the following code and update the project ID and location.
 
         ```env title="multi_tool_agent/.env"
-        GOOGLE_GENAI_USE_VERTEXAI=TRUE
+        GOOGLE_GENAI_USE_ENTERPRISE=TRUE
         GOOGLE_API_KEY=PASTE_YOUR_ACTUAL_EXPRESS_MODE_API_KEY_HERE
         ```
 
         When using Java, define environment variables:
 
         ```console title="terminal"
-        export GOOGLE_GENAI_USE_VERTEXAI=TRUE
+        export GOOGLE_GENAI_USE_ENTERPRISE=TRUE
         export GOOGLE_API_KEY=PASTE_YOUR_ACTUAL_EXPRESS_MODE_API_KEY_HERE
         ```
 
         When using TypeScript, the `.env` file is automatically loaded by the `import 'dotenv/config';` line at the top of your `agent.ts` file.
 
         ```env title=".env"
-        GOOGLE_GENAI_USE_VERTEXAI=TRUE
+        GOOGLE_GENAI_USE_ENTERPRISE=TRUE
         GOOGLE_GENAI_API_KEY=PASTE_YOUR_ACTUAL_EXPRESS_MODE_API_KEY_HERE
         ```
 
         When using Go, define environment variables in your terminal or use a `.env` file:
 
         ```bash title="terminal"
-        export GOOGLE_GENAI_USE_VERTEXAI=TRUE
+        export GOOGLE_GENAI_USE_ENTERPRISE=TRUE
         export GOOGLE_API_KEY=PASTE_YOUR_ACTUAL_EXPRESS_MODE_API_KEY_HERE
         ```
 

examples/java/demos/patent-search-agent/README.md

@@ -6,7 +6,7 @@ Using ADK Java SDK to perform the popular Patent Search (Contextual Search)  use
 
 2. Set env variables:
 ```
-export GOOGLE_GENAI_USE_VERTEXAI=FALSE
+export GOOGLE_GENAI_USE_ENTERPRISE=FALSE
 export GOOGLE_API_KEY="<your-api-key>"
 ```
 3. Update the placeholders in the code with values from your project (like PROJECT_ID etc.)

examples/python/notebooks/express-mode-weather-agent.ipynb

@@ -102,7 +102,7 @@
     "express_mode_api_key = \"YOUR-EXPRESS-MODE-API-KEY\"  # @param {type:\"string\"}\n",
     "os.environ[\"GOOGLE_API_KEY\"] = express_mode_api_key\n",
     "# Set vertex to true\n",
-    "os.environ[\"GOOGLE_GENAI_USE_VERTEXAI\"] = \"True\"\n",
+    "os.environ[\"GOOGLE_GENAI_USE_ENTERPRISE\"] = \"True\"\n",
     "\n",
     "# --- Verify Keys (Optional Check) ---\n",
     "print(\"API Keys Set:\")\n",

examples/python/notebooks/shop_agent.ipynb

@@ -147,14 +147,14 @@
     "from getpass import getpass\n",
     "\n",
     "# Set environment variables required for running ADK (with Gemini API Key)\n",
-    "os.environ[\"GOOGLE_GENAI_USE_VERTEXAI\"] = \"False\"\n",
+    "os.environ[\"GOOGLE_GENAI_USE_ENTERPRISE\"] = \"False\"\n",
     "os.environ[\"GOOGLE_API_KEY\"] = getpass(\"Enter your Gemini API Key: \")\n",
     "\n",
     "# To use Agent Platform instead of Gemini API Key in Colab Enterprise or Cloud Workbench, use the following:\n",
     "# [PROJECT_ID] = !gcloud config list --format \"value(core.project)\"\n",
     "# os.environ[\"GOOGLE_CLOUD_PROJECT\"] = PROJECT_ID\n",
     "# os.environ[\"GOOGLE_CLOUD_LOCATION\"] = \"us-central1\"\n",
-    "# os.environ[\"GOOGLE_GENAI_USE_VERTEXAI\"] = \"True\""
+    "# os.environ[\"GOOGLE_GENAI_USE_ENTERPRISE\"] = \"True\""
    ]
   },
   {

examples/python/snippets/streaming/adk-streaming-ws/tests/test_log_20251029_151045.md

@@ -13,7 +13,7 @@
 ## Configuration
 
 ```env
-GOOGLE_GENAI_USE_VERTEXAI=TRUE
+GOOGLE_GENAI_USE_ENTERPRISE=TRUE
 GOOGLE_CLOUD_PROJECT=gcp-samples-ic0
 GOOGLE_CLOUD_LOCATION=us-central1
 DEMO_AGENT_MODEL=gemini-live-2.5-flash-preview-native-audio-09-2025

examples/python/tutorial/agent_team/adk-tutorial/readme.md

@@ -63,7 +63,7 @@ Before running any agent step, you **must** configure your API keys.
     **Example `.env` content:**
     ```dotenv
     # Set to False to use API keys directly (required for multi-model)
-    GOOGLE_GENAI_USE_VERTEXAI=FALSE
+    GOOGLE_GENAI_USE_ENTERPRISE=FALSE
 
     # --- Replace with your actual keys ---
     GOOGLE_API_KEY=PASTE_YOUR_ACTUAL_GOOGLE_API_KEY_HERE

examples/python/tutorial/agent_team/adk_tutorial.ipynb

@@ -148,7 +148,7 @@
     ")\n",
     "\n",
     "# Configure ADK to use API keys directly (not Agent Platform for this multi-model setup)\n",
-    "os.environ[\"GOOGLE_GENAI_USE_VERTEXAI\"] = \"False\"\n",
+    "os.environ[\"GOOGLE_GENAI_USE_ENTERPRISE\"] = \"False\"\n",
     "\n",
     "\n",
     "# @markdown **Security Note:** It's best practice to manage API keys securely (e.g., using Colab Secrets or environment variables) rather than hardcoding them directly in the notebook. Replace the placeholder strings above."