updates

Author: Chenglong-MS

README.md

@@ -22,6 +22,11 @@ Transform data and create rich visualizations iteratively with AI 🪄. Try Data
 
 ## News 🔥🔥🔥
 
+- [02-12-2025] Run Data Formulator with different models (powered by [LiteLLM](https://github.com/BerriAI/litellm))!
+  - You can now run Data Formulator with different models by specifying the model in the model selection dialog.
+  - We have tested with OpenAI, Azure, Ollama, and Anthropic. Models with good code generation capabilities are recommended (gpt-4o, gpt-4o-mini, claude-3-5-sonnet etc.).
+  - If running locally, you can also save your API keys in the `api-keys.env` file (check `api-keys.env.template` for reference), Data Formulator will automatically load them.
+
 - [11-07-2024] Minor fun update: data visualization challenges!
   - We added a few visualization challenges with the sample datasets. Can you complete them all? [[try them out!]](https://github.com/microsoft/data-formulator/issues/53#issue-2641841252)
   - Comment in the issue when you did, or share your results/questions with others! [[comment here]](https://github.com/microsoft/data-formulator/issues/53)
@@ -77,7 +82,7 @@ Play with Data Formulator with one of the following options:
 
 ## Using Data Formulator
 
-Once you’ve completed the setup using either option, follow these steps to start using Data Formulator:
+Once you've completed the setup using either option, follow these steps to start using Data Formulator:
 
 ### The basics of data visualization
 * Provide OpenAI keys and select a model (GPT-4o suggested) and choose a dataset.

api-keys.env.template

@@ -1,10 +1,11 @@
 # OpenAI Configuration
 OPENAI_ENABLED=true
 OPENAI_API_KEY=#your-openai-api-key
-OPENAI_MODELS=gpt-4o,gpt-4o-mini
+OPENAI_MODELS=gpt-4o,gpt-4o-mini # comma separated list of models
 
 # Azure OpenAI Configuration
 AZURE_ENABLED=true
+AZURE_API_KEY=#your-azure-openai-api-key
 AZURE_API_BASE=https://your-azure-openai-endpoint.openai.azure.com/
 AZURE_API_VERSION=2024-02-15-preview
 AZURE_MODELS=gpt-4o
@@ -17,4 +18,7 @@ ANTHROPIC_MODELS=claude-3-5-sonnet-20241022,claude-3-5-haiku-20241022
 # Ollama Configuration
 OLLAMA_ENABLED=true
 OLLAMA_API_BASE=http://localhost:11434
-OLLAMA_MODELS=codellama:7b
+OLLAMA_MODELS=codellama:7b # models with good code generation capabilities recommended
+
+# if you want to add other models, you can add them with PROVIDER_API_KEY=your-api-key, PROVIDER_MODELS=model1,model2 etc 
+# (replacing PROVIDER with the provider name like GEMINI, ANTHROPIC, AZURE, OPENAI, OLLAMA etc. as long as they are supported by LiteLLM)