docs supports reasoning

docs/my-website/docs/reasoning_content.md

@@ -18,7 +18,7 @@ Supported Providers:
 
 LiteLLM will standardize the `reasoning_content` in the response and `thinking_blocks` in the assistant message.
 
-```python
+```python title="Example response from litellm"
 "message": {
     ...
     "reasoning_content": "The capital of France is Paris.",
@@ -37,7 +37,7 @@ LiteLLM will standardize the `reasoning_content` in the response and `thinking_b
 <Tabs>
 <TabItem value="sdk" label="SDK">
 
-```python
+```python showLineNumbers
 from litellm import completion
 import os 
 
@@ -111,7 +111,7 @@ Here's how to use `thinking` blocks by Anthropic with tool calling.
 <Tabs>
 <TabItem value="sdk" label="SDK">
 
-```python
+```python showLineNumbers
 litellm._turn_on_debug()
 litellm.modify_params = True
 model = "anthropic/claude-3-7-sonnet-20250219" # works across Anthropic, Bedrock, Vertex AI
@@ -210,7 +210,7 @@ if tool_calls:
 
 1. Setup config.yaml
 
-```yaml
+```yaml showLineNumbers
 model_list:
   - model_name: claude-3-7-sonnet-thinking
     litellm_params:
@@ -224,7 +224,7 @@ model_list:
 
 2. Run proxy
 
-```bash
+```bash showLineNumbers
 litellm --config config.yaml
 
 # RUNNING on http://0.0.0.0:4000
@@ -332,7 +332,7 @@ curl http://0.0.0.0:4000/v1/chat/completions \
 
 Set `drop_params=True` to drop the 'thinking' blocks when swapping from Anthropic to Deepseek models. Suggest improvements to this approach [here](https://github.com/BerriAI/litellm/discussions/8927).
 
-```python
+```python showLineNumbers
 litellm.drop_params = True # 👈 EITHER GLOBALLY or per request
 
 # or per request
@@ -373,7 +373,7 @@ You can also pass the `thinking` parameter to Anthropic models.
 <Tabs>
 <TabItem value="sdk" label="SDK">
 
-```python
+```python showLineNumbers
 response = litellm.completion(
   model="anthropic/claude-3-7-sonnet-20250219",
   messages=[{"role": "user", "content": "What is the capital of France?"}],
@@ -395,5 +395,92 @@ curl http://0.0.0.0:4000/v1/chat/completions \
   }'
 ```
 
+</TabItem>
+</Tabs>
+
+## Checking if a model supports reasoning
+
+<Tabs>
+<TabItem label="LiteLLM Python SDK" value="Python">
+
+Use `litellm.supports_reasoning(model="")` -> returns `True` if model supports reasoning and `False` if not.
+
+```python showLineNumbers title="litellm.supports_reasoning() usage"
+import litellm 
+
+# Example models that support reasoning
+assert litellm.supports_reasoning(model="anthropic/claude-3-7-sonnet-20250219") == True
+assert litellm.supports_reasoning(model="deepseek/deepseek-chat") == True 
+
+# Example models that do not support reasoning
+assert litellm.supports_reasoning(model="openai/gpt-3.5-turbo") == False 
+```
+</TabItem>
+
+<TabItem label="LiteLLM Proxy Server" value="proxy">
+
+1. Define models that support reasoning in your `config.yaml`. You can optionally add `supports_reasoning: True` to the `model_info` if LiteLLM does not automatically detect it for your custom model.
+
+```yaml showLineNumbers title="litellm proxy config.yaml"
+model_list:
+  - model_name: claude-3-sonnet-reasoning
+    litellm_params:
+      model: anthropic/claude-3-7-sonnet-20250219
+      api_key: os.environ/ANTHROPIC_API_KEY
+  - model_name: deepseek-reasoning
+    litellm_params:
+      model: deepseek/deepseek-chat
+      api_key: os.environ/DEEPSEEK_API_KEY
+  # Example for a custom model where detection might be needed
+  - model_name: my-custom-reasoning-model 
+    litellm_params:
+      model: openai/my-custom-model # Assuming it's OpenAI compatible
+      api_base: http://localhost:8000
+      api_key: fake-key
+    model_info:
+      supports_reasoning: True # Explicitly mark as supporting reasoning
+```
+
+2. Run the proxy server:
+
+```bash showLineNumbers title="litellm --config config.yaml"
+litellm --config config.yaml
+```
+
+3. Call `/model_group/info` to check if your model supports `reasoning`
+
+```shell showLineNumbers title="curl /model_group/info"
+curl -X 'GET' \
+  'http://localhost:4000/model_group/info' \
+  -H 'accept: application/json' \
+  -H 'x-api-key: sk-1234'
+```
+
+Expected Response 
+
+```json showLineNumbers title="response from /model_group/info"
+{
+  "data": [
+    {
+      "model_group": "claude-3-sonnet-reasoning",
+      "providers": ["anthropic"],
+      "mode": "chat",
+      "supports_reasoning": true,
+    },
+    {
+      "model_group": "deepseek-reasoning",
+      "providers": ["deepseek"],
+      "supports_reasoning": true,
+    },
+    {
+      "model_group": "my-custom-reasoning-model",
+      "providers": ["openai"],
+      "supports_reasoning": true,
+    }
+  ]
+}
+````
+
+
 </TabItem>
 </Tabs>