https://heyvasu.com/blog/ Essays on building agentic AI in production, from your first LLM API call to a cost model you can reconcile. en Fri, 17 Jul 2026 00:00:00 GMT https://heyvasu.com/blog/first-llm-api-call-groq/ https://heyvasu.com/blog/first-llm-api-call-groq/ Sun, 12 Jul 2026 00:00:00 GMT Make your first LLM API call in about ten minutes on Groq's free tier. Step-by-step tutorial with curl and Python, API key setup, and common error fixes. Groq LLM API https://heyvasu.com/blog/real-cost-of-llms-in-production/ https://heyvasu.com/blog/real-cost-of-llms-in-production/ Fri, 17 Jul 2026 00:00:00 GMT Token pricing is the smallest line item. A cost model for agentic workloads (context windows, retries, caching, evaluation) built the way finance would build it. LLM Cost Agentic Systems