Subscription and API Key for Unlimited GPT-4 Usage with Obsidian Vault

Hi, I’m using OpenAI with my Obsidian Vault (smart connection). Is it possible to subscribe monthly for GPT-4 and get an API key for unlimited usage of GPT-4 with Obsidian? Is this possible if I go for a monthly subscription? Thanks very much.

No.

The API is a developer product ChatGPT is a consumer product, they are not at all related. Having a ChatGPT subscription does not include any API access.