docs(providers): add the AIHubMix provider page

docs/providers/aihubmix.md

@@ -0,0 +1,168 @@
+import Tabs from '@theme/Tabs';
+import TabItem from '@theme/TabItem';
+
+# AIHubMix
+
+## Overview
+
+| Property | Details |
+|-------|-------|
+| Description | AIHubMix is an OpenAI-compatible API aggregator that fronts models from OpenAI, Anthropic, Google, and other vendors behind one key and endpoint. |
+| Provider Route on LiteLLM | `aihubmix/` |
+| Link to Provider Doc | [AIHubMix Documentation ↗](https://docs.aihubmix.com) |
+| Base URL | `https://aihubmix.com/v1` |
+| Supported Operations | [`/chat/completions`](/docs/providers/aihubmix#usage---litellm-python-sdk) |
+
+<br />
+<br />
+
+**We support ALL AIHubMix models, just set `aihubmix/` as a prefix when sending completion requests.** Use the model id exactly as AIHubMix lists it (for example `aihubmix/gpt-4o-mini`).
+
+## Required Variables
+
+```python showLineNumbers title="Environment Variables"
+os.environ["AIHUBMIX_API_KEY"] = ""  # your AIHubMix API key
+```
+
+## Usage - LiteLLM Python SDK
+
+### Non-streaming
+
+```python showLineNumbers title="AIHubMix Non-streaming Completion"
+import os
+import litellm
+from litellm import completion
+
+os.environ["AIHUBMIX_API_KEY"] = ""  # your AIHubMix API key
+
+messages = [{"content": "Hello, how are you?", "role": "user"}]
+
+response = completion(
+    model="aihubmix/gpt-4o-mini",
+    messages=messages
+)
+
+print(response)
+```
+
+### Streaming
+
+```python showLineNumbers title="AIHubMix Streaming Completion"
+import os
+import litellm
+from litellm import completion
+
+os.environ["AIHUBMIX_API_KEY"] = ""  # your AIHubMix API key
+
+messages = [{"content": "Write a short story about AI", "role": "user"}]
+
+response = completion(
+    model="aihubmix/gpt-4o-mini",
+    messages=messages,
+    stream=True
+)
+
+for chunk in response:
+    print(chunk)
+```
+
+### Function Calling
+
+```python showLineNumbers title="AIHubMix Function Calling"
+import os
+import litellm
+from litellm import completion
+
+os.environ["AIHUBMIX_API_KEY"] = ""  # your AIHubMix API key
+
+tools = [{
+    "type": "function",
+    "function": {
+        "name": "get_weather",
+        "description": "Get the current weather in a location",
+        "parameters": {
+            "type": "object",
+            "properties": {
+                "location": {
+                    "type": "string",
+                    "description": "The city and state, e.g. San Francisco, CA"
+                }
+            },
+            "required": ["location"]
+        }
+    }
+}]
+
+messages = [{"role": "user", "content": "What's the weather in Boston?"}]
+
+response = completion(
+    model="aihubmix/gpt-4o-mini",
+    messages=messages,
+    tools=tools,
+    tool_choice="auto"
+)
+
+print(response)
+```
+
+## Usage - LiteLLM Proxy Server
+
+```yaml showLineNumbers title="config.yaml"
+model_list:
+  - model_name: gpt-4o-mini
+    litellm_params:
+      model: aihubmix/gpt-4o-mini
+      api_key: os.environ/AIHUBMIX_API_KEY
+  - model_name: claude-sonnet
+    litellm_params:
+      model: aihubmix/claude-sonnet-4-5
+      api_key: os.environ/AIHUBMIX_API_KEY
+```
+
+```bash showLineNumbers title="Start proxy"
+litellm --config /path/to/config.yaml
+```
+
+```bash showLineNumbers title="Test request"
+curl http://0.0.0.0:4000/v1/chat/completions \
+  -H "Content-Type: application/json" \
+  -H "Authorization: Bearer $LITELLM_API_KEY" \
+  -d '{
+    "model": "gpt-4o-mini",
+    "messages": [{"role": "user", "content": "Hello!"}]
+  }'
+```
+
+## Custom API Base
+
+**Option 1: Environment variable**
+
+```python showLineNumbers title="Custom API Base via env var"
+import os
+from litellm import completion
+
+os.environ["AIHUBMIX_API_BASE"] = "https://your-aihubmix-endpoint/v1"
+os.environ["AIHUBMIX_API_KEY"] = ""  # your API key
+
+response = completion(
+    model="aihubmix/gpt-4o-mini",
+    messages=[{"content": "Hello!", "role": "user"}],
+)
+```
+
+**Option 2: Pass directly**
+
+```python showLineNumbers title="Custom API Base via parameter"
+from litellm import completion
+
+response = completion(
+    model="aihubmix/gpt-4o-mini",
+    messages=[{"content": "Hello!", "role": "user"}],
+    api_base="https://your-aihubmix-endpoint/v1",
+    api_key="your-api-key",
+)
+```
+
+## Supported OpenAI Parameters
+
+AIHubMix is registered as an OpenAI-compatible provider, so LiteLLM forwards the standard OpenAI chat parameters (`temperature`, `max_tokens`, `top_p`, `stop`, `n`, `stream`, `tools`, `tool_choice`, `response_format`, `seed`, `user`, and friends) unchanged. Whether a given parameter is honored depends on the upstream model AIHubMix routes to.

sidebars.js

@@ -1124,6 +1124,7 @@ const sidebars = {
         "providers/litellm_proxy",
         "providers/abliteration",
         "providers/ai21",
+        "providers/aihubmix",
         "providers/aiml",
         "providers/aleph_alpha",
         "providers/amazon_nova",