Fix JSON and Timeout Issues with OpenAI GPT-4o API on Vercel -- 2

I have a SaaS project integrated with OpenAI's GPT-4o API, designed to create personalized Pilates programs. It works perfectly on my local environment, but once deployed to Vercel, it encounters a JSON error followed by a timeout issue after approximately 10 seconds.

I'm looking for an experienced developer who can quickly identify and resolve this deployment-specific issue. Familiarity with Vercel, OpenAI API integrations, and debugging JSON/time-out errors is required.

If you're confident you can help me troubleshoot and fix this issue, please get in touch!

Thanks.