That’s depends upon Traffic Request and What type Of Application you Are building with Free Api

but i personally not recommend For  Production App

But Still Its Your choice

There Are Few Advantages Of Free Api like :

• Free to use: This is obviously a major advantage, especially for early-stage startups or projects with limited budgets. It allows you to test and iterate on your app without incurring any upfront costs.
• Easy to set up: The API is straightforward to use with simple HTTP requests, making it accessible even for developers with limited experience in AI.

Disadvantage :

• Limited resources: The free tier has limitations on request rates and model size, which could be problematic for high-traffic or complex applications.
• Unpredictable performance: The free tier shares resources with other users, potentially leading to fluctuations in performance and potential throttling during peak hours.
• Lack of control: You don’t have control over the underlying infrastructure and cannot customize settings to optimize performance for your specific needs.

So basically If You Still Want to use free inference API Then I will Only Suggest to Use For low-traffic apps and Only For Testing Your concept

For high-traffic apps I recommend you to use Paid Plans And Proper Api So Your App can Run Without Having Any issues