diff --git a/docs/my-website/docs/providers/ai21.md b/docs/my-website/docs/providers/ai21.md
index c0987b3126..294db3fcbc 100644
--- a/docs/my-website/docs/providers/ai21.md
+++ b/docs/my-website/docs/providers/ai21.md
@@ -1,8 +1,17 @@
+import Tabs from '@theme/Tabs';
+import TabItem from '@theme/TabItem';
+
 # AI21 
 
-LiteLLM supports j2-light, j2-mid and j2-ultra from [AI21](https://www.ai21.com/studio/pricing).
+LiteLLM supports j2-light, j2-mid and j2-ultra from [AI21](https://www.ai21.com/studio/pricing)
 
-They're available to use without a waitlist.
+
+:::tip
+
+**We support ALL AI21 models, just set `model=ai21/<any-model-on-ai21>` as a prefix when sending litellm requests**. 
+**See all litellm supported AI21 models [here](https://models.litellm.ai)**
+
+:::
 
 ### API KEYS
 ```python
@@ -10,6 +19,7 @@ import os
 os.environ["AI21_API_KEY"] = "your-api-key"
 ```
 
+## **LiteLLM Python SDK Usage**
 ### Sample Usage
 
 ```python
@@ -23,10 +33,89 @@ messages = [{"role": "user", "content": "Write me a poem about the blue sky"}]
 completion(model="j2-light", messages=messages)
 ```
 
-### AI21 Models
+
+
+## **LiteLLM Proxy Server Usage**
+
+Here's how to call a ai21 model with the LiteLLM Proxy Server
+
+1. Modify the config.yaml 
+
+  ```yaml
+  model_list:
+    - model_name: my-model
+      litellm_params:
+        model: ai21/<your-model-name>  # add ai21/ prefix to route as ai21 provider
+        api_key: api-key                 # api key to send your model
+  ```
+
+
+2. Start the proxy 
+
+  ```bash
+  $ litellm --config /path/to/config.yaml
+  ```
+
+3. Send Request to LiteLLM Proxy Server
+
+  <Tabs>
+
+  <TabItem value="openai" label="OpenAI Python v1.0.0+">
+
+  ```python
+  import openai
+  client = openai.OpenAI(
+      api_key="sk-1234",             # pass litellm proxy key, if you're using virtual keys
+      base_url="http://0.0.0.0:4000" # litellm-proxy-base url
+  )
+
+  response = client.chat.completions.create(
+      model="my-model",
+      messages = [
+          {
+              "role": "user",
+              "content": "what llm are you"
+          }
+      ],
+  )
+
+  print(response)
+  ```
+  </TabItem>
+
+  <TabItem value="curl" label="curl">
+
+  ```shell
+  curl --location 'http://0.0.0.0:4000/chat/completions' \
+      --header 'Authorization: Bearer sk-1234' \
+      --header 'Content-Type: application/json' \
+      --data '{
+      "model": "my-model",
+      "messages": [
+          {
+          "role": "user",
+          "content": "what llm are you"
+          }
+      ],
+  }'
+  ```
+  </TabItem>
+
+  </Tabs>
+
+
+:::tip
+
+**We support ALL AI21 models, just set `model=ai21/<any-model-on-ai21>` as a prefix when sending litellm requests**
+**See all litellm supported AI21 models [here](https://models.litellm.ai)**
+:::
+
+## AI21 Models
 
 | Model Name       | Function Call                              | Required OS Variables                |
 |------------------|--------------------------------------------|--------------------------------------|
+| jamba-1.5-mini         | `completion('jamba-1.5-mini', messages)`         | `os.environ['AI21_API_KEY']`         |
+| jamba-1.5-large         | `completion('jamba-1.5-large', messages)`         | `os.environ['AI21_API_KEY']`         |
 | j2-light         | `completion('j2-light', messages)`         | `os.environ['AI21_API_KEY']`         |
 | j2-mid           | `completion('j2-mid', messages)`           | `os.environ['AI21_API_KEY']`         |
 | j2-ultra         | `completion('j2-ultra', messages)`         | `os.environ['AI21_API_KEY']`         |
\ No newline at end of file
diff --git a/litellm/tests/test_get_llm_provider.py b/litellm/tests/test_get_llm_provider.py
index 921420f801..ebf4debd5b 100644
--- a/litellm/tests/test_get_llm_provider.py
+++ b/litellm/tests/test_get_llm_provider.py
@@ -77,3 +77,19 @@ def test_get_llm_provider_ai21_chat():
     assert custom_llm_provider == "ai21_chat"
     assert model == "jamba-1.5-large"
     assert api_base == "https://api.ai21.com/studio/v1"
+
+
+def test_get_llm_provider_ai21_chat_test2():
+    """
+    if user prefix with ai21/ but calls jamba-1.5-large then it should be ai21_chat provider
+    """
+    model, custom_llm_provider, dynamic_api_key, api_base = litellm.get_llm_provider(
+        model="ai21/jamba-1.5-large",
+    )
+
+    print("model=", model)
+    print("custom_llm_provider=", custom_llm_provider)
+    print("api_base=", api_base)
+    assert custom_llm_provider == "ai21_chat"
+    assert model == "jamba-1.5-large"
+    assert api_base == "https://api.ai21.com/studio/v1"
diff --git a/litellm/utils.py b/litellm/utils.py
index 85744c2dfb..c32a2736a6 100644
--- a/litellm/utils.py
+++ b/litellm/utils.py
@@ -4666,6 +4666,7 @@ def get_llm_provider(
         ):
             custom_llm_provider = model.split("/", 1)[0]
             model = model.split("/", 1)[1]
+
             if custom_llm_provider == "perplexity":
                 # perplexity is openai compatible, we just need to set this to custom_openai and have the api_base be https://api.perplexity.ai
                 api_base = api_base or get_secret("PERPLEXITY_API_BASE") or "https://api.perplexity.ai"  # type: ignore
@@ -4712,13 +4713,16 @@ def get_llm_provider(
                     or "https://api.cerebras.ai/v1"
                 )  # type: ignore
                 dynamic_api_key = api_key or get_secret("CEREBRAS_API_KEY")
-            elif custom_llm_provider == "ai21_chat":
+            elif (custom_llm_provider == "ai21_chat") or (
+                custom_llm_provider == "ai21" and model in litellm.ai21_chat_models
+            ):
                 api_base = (
                     api_base
                     or get_secret("AI21_API_BASE")
                     or "https://api.ai21.com/studio/v1"
                 )  # type: ignore
                 dynamic_api_key = api_key or get_secret("AI21_API_KEY")
+                custom_llm_provider = "ai21_chat"
             elif custom_llm_provider == "volcengine":
                 # volcengine is openai compatible, we just need to set this to custom_openai and have the api_base be https://api.endpoints.anyscale.com/v1
                 api_base = (