OpenAI API

Jan supports most OpenAI as well as the many OpenAI-compatible APIs out there, allowing you to use all models from OpenAI (GPT-4o, o3 and even those from Together AI, DeepSeek, Fireworks and more) through Jan’s interface.

Integrate OpenAI API with Jan

Step 1: Get Your API Key

1. Visit the OpenAI Platform and sign in
2. Create & copy a new API key or copy your existing one

Note

Ensure your API key has sufficient credits

Step 2: Configure Jan

1. Navigate to the Settings page
2. Under Remote Engines, select OpenAI
3. Insert your API Key

Step 3: Start Using OpenAI’s Models

In any existing Threads or create a new one Select an OpenAI model from model selector Start chatting

Available OpenAI Models

Jan automatically includes popular OpenAI models. In case you want to use a specific model that you cannot find in Jan, follow instructions in Add Cloud Models:

• See list of available models in OpenAI Platform.
• The id property must match the model name in the list. For example, if you want to use the GPT-4.5, you must set the id property to respective one.

Troubleshooting

Common issues and solutions:

1. API Key Issues

• Verify your API key is correct and not expired
• Check if you have billing set up on your OpenAI account
• Ensure you have access to the model you’re trying to use

2. Connection Problems

• Check your internet connection
• Verify OpenAI’s system status
• Look for error messages in Jan’s logs

3. Model Unavailable

• Confirm your API key has access to the model
• Check if you’re using the correct model ID
• Verify your OpenAI account has the necessary permissions

Need more help? Join our Discord community or check the OpenAI documentation.