docs gemini cli x litellm

docs/my-website/docs/tutorials/litellm_gemini_cli.md

@@ -76,6 +76,99 @@ The CLI will now use LiteLLM Proxy as the backend, giving you access to LiteLLM'
 - Cost tracking
 - Model routing and fallbacks
 
+
+## Advanced
+
+### Use Anthropic, OpenAI, Bedrock, etc. models on gemini-cli
+
+In order to use non-gemini models on gemini-cli, you need to set a `model_group_alias` in the LiteLLM Proxy config. This tells LiteLLM that requests with model = `gemini-2.5-pro` should be routed to your desired model from any provider.
+
+import Tabs from '@theme/Tabs';
+import TabItem from '@theme/TabItem';
+
+<Tabs>
+<TabItem value="anthropic" label="Anthropic">
+
+Route `gemini-2.5-pro` requests to Claude Sonnet:
+
+```yaml showLineNumbers title="proxy_config.yaml"
+model_list:
+  - model_name: claude-sonnet-4-20250514
+    litellm_params:
+      model: anthropic/claude-3-5-sonnet-20241022
+      api_key: os.environ/ANTHROPIC_API_KEY
+
+router_settings:
+  model_group_alias: {"gemini-2.5-pro": "claude-sonnet-4-20250514"}
+```
+
+</TabItem>
+<TabItem value="openai" label="OpenAI">
+
+Route `gemini-2.5-pro` requests to GPT-4o:
+
+```yaml showLineNumbers title="proxy_config.yaml"
+model_list:
+  - model_name: gpt-4o-model
+    litellm_params:
+      model: gpt-4o
+      api_key: os.environ/OPENAI_API_KEY
+
+router_settings:
+  model_group_alias: {"gemini-2.5-pro": "gpt-4o-model"}
+```
+
+</TabItem>
+<TabItem value="bedrock" label="Bedrock">
+
+Route `gemini-2.5-pro` requests to Claude on Bedrock:
+
+```yaml showLineNumbers title="proxy_config.yaml"
+model_list:
+  - model_name: bedrock-claude
+    litellm_params:
+      model: bedrock/anthropic.claude-3-5-sonnet-20241022-v2:0
+      aws_access_key_id: os.environ/AWS_ACCESS_KEY_ID
+      aws_secret_access_key: os.environ/AWS_SECRET_ACCESS_KEY
+      aws_region_name: us-east-1
+
+router_settings:
+  model_group_alias: {"gemini-2.5-pro": "bedrock-claude"}
+```
+
+</TabItem>
+<TabItem value="multi-provider" label="Multi-Provider Load Balancing">
+
+All deployments with model_name=`anthropic-claude` will be load balanced. In this example we load balance between Anthropic and Bedrock.
+
+```yaml showLineNumbers title="proxy_config.yaml"
+model_list:
+  - model_name: anthropic-claude
+    litellm_params:
+      model: anthropic/claude-3-5-sonnet-20241022
+      api_key: os.environ/ANTHROPIC_API_KEY  
+  - model_name: anthropic-claude
+    litellm_params:
+      model: bedrock/anthropic.claude-3-5-sonnet-20241022-v2:0
+      aws_access_key_id: os.environ/AWS_ACCESS_KEY_ID
+      aws_secret_access_key: os.environ/AWS_SECRET_ACCESS_KEY
+      aws_region_name: us-east-1
+
+router_settings:
+  model_group_alias: {"gemini-2.5-pro": "anthropic-claude"}
+```
+
+</TabItem>
+</Tabs>
+
+With this configuration, when you use `gemini-2.5-pro` in the CLI, LiteLLM will automatically route your requests to the configured provider(s) with load balancing and fallbacks.
+
+
+
+
+
+
+
 ## Troubleshooting
 
 If you encounter issues: