You're allowed free usage of the web interface because the web interface uses your data for training. The API interface does not use your data for training. It'

You're allowed free usage of the web interface because the web interface uses your data for training. The API interface does not use your data for training. It's a classic 'if it's free, you're the product' situation. Source: https://openai.com/policies/api-data-usage-policies https://openai.com/policies/api-data-usage-policies >OpenAI will not use data submitted by customers via our API to train or improve our models, unless you explicitly decide to share your data with us for this purpose. You can opt-in to share data.