Platform UI: Add TogetherAI embedding provider and models (#432)

Author: Paul-Cornell

platform/embedding.mdx

@@ -63,10 +63,20 @@ To generate embeddings, choose one of the following embedding providers and mode
 
 <Note>You can change a workflow's preconfigured provider only through [Custom](/platform/workflows#create-a-custom-workflow) workflow settings.</Note>
 
-- **OpenAI**: Use [OpenAI](https://openai.com) to generate embeddings. Also, choose the model to use:
+- **Azure OpenAI**: Use [Azure OpenAI](https://azure.microsoft.com/products/ai-services/openai-service) to generate embeddings. Also, choose the model to use:
 
   - **text-embedding-3-small**, with 1536 dimensions.
   - **text-embedding-3-large**, with 3072 dimensions.
-  - **Ada 002 (Text)**, with 1536 dimensions.
+  - **Ada 002 (Text)** (`text-embedding-ada-002`), with 1536 dimensions.
 
-  [Learn more](https://platform.openai.com/docs/guides/embeddings).
+  [Learn more](https://learn.microsoft.com/azure/ai-services/openai/concepts/models#embeddings).
+
+- **TogetherAI**: Use [TogetherAI](https://www.together.ai/) to generate embeddings. Also, choose the model to use:
+
+  - **M2-BERT-80M-2K-Retrieval**, with 768 dimensions.
+  - **M2-BERT-80M-8K-Retrieval**, with 768 dimensions.
+  - **M2-BERT-80M-32K-Retrieval**, with 768 dimensions.
+  - **Sentence-BERT**, with 768 dimensions.
+  - **BERT**, with 768 dimensions.
+
+  [Learn more](https://docs.together.ai/docs/serverless-models#embedding-models).

platform/workflows.mdx

@@ -290,13 +290,23 @@ There are two ways to create a custom workflow:
 16. In the **Embed** area, for **Provider**, choose one of the following:
 
     - **None**: Do not generate embeddings.
-    - **OpenAI**: Use OpenAI to generate embeddings. Also, choose the model to use:
+    - **Azure OpenAI**: Use Azure OpenAI to generate embeddings. Also, choose the model to use:
 
       - **text-embedding-3-small**, with 1536 dimensions.
       - **text-embedding-3-large**, with 3072 dimensions.
-      - **Ada 002 (Text)**, with 1536 dimensions.
+      - **Ada 002 (Text)** (`text-embedding-ada-002`), with 1536 dimensions.
 
-      [Learn more](https://platform.openai.com/docs/guides/embeddings).
+      [Learn more](https://learn.microsoft.com/azure/ai-services/openai/concepts/models#embeddings).
+
+    - **TogetherAI**: Use TogetherAI to generate embeddings. Also, choose the model to use:
+
+      - **M2-BERT-80M-2K-Retrieval**, with 768 dimensions.
+      - **M2-BERT-80M-8K-Retrieval**, with 768 dimensions.
+      - **M2-BERT-80M-32K-Retrieval**, with 768 dimensions.
+      - **Sentence-BERT**, with 768 dimensions.
+      - **BERT**, with 768 dimensions.
+
+      [Learn more](https://docs.together.ai/docs/serverless-models#embedding-models).
 
     Learn more:
 
@@ -478,13 +488,23 @@ There are two ways to create a custom workflow:
     <Accordion title="Embedder node">
         For **Providers**, select one of the following:
 
-        - **OpenAI**: Use OpenAI to generate embeddings. Also, choose the model to use:
+        - **Azure OpenAI**: Use Azure OpenAI to generate embeddings. Also, choose the model to use:
 
           - **text-embedding-3-small**, with 1536 dimensions.
           - **text-embedding-3-large**, with 3072 dimensions.
-          - **Ada 002 (Text)**, with 1536 dimensions.
+          - **Ada 002 (Text)** (`text-embedding-ada-002`), with 1536 dimensions.
+
+          [Learn more](https://learn.microsoft.com/azure/ai-services/openai/concepts/models#embeddings).
+
+        - **TogetherAI**: Use TogetherAI to generate embeddings. Also, choose the model to use:
+
+          - **M2-BERT-80M-2K-Retrieval**, with 768 dimensions.
+          - **M2-BERT-80M-8K-Retrieval**, with 768 dimensions.
+          - **M2-BERT-80M-32K-Retrieval**, with 768 dimensions.
+          - **Sentence-BERT**, with 768 dimensions.
+          - **BERT**, with 768 dimensions.
 
-          [Learn more](https://platform.openai.com/docs/guides/embeddings).
+          [Learn more](https://docs.together.ai/docs/serverless-models#embedding-models).
 
         Learn more: