Every team shipping an LLM feature hits the same question : do i do a single model call, or a full agentic workflow with tools, retries, and validation?
They are not the same thing to build — or to operate. In this piece, I walk through:
→ What each architecture actually looks like behind scenes
→ Two worked examples with tool stacks and flow
→ Where the hidden cost and latency actually piles up
→ Four questions that settle bot-vs-workflow for any feature you're building
If you're deciding how to architect your next LLM feature, this one should save you some expensive trial and error.