How this material uses the term In the channel's captured material, function calling appears in the context of building end-to-end AI products: an AI application pairs a language model with external tools and data sources so the model's output can drive real work — for example, a product like Audos, where ChatGPT is combined with a database like Airtable to move a user from a business idea to concrete deliverables such as a pitch deck, landing page, custom GPT, and customer interviews [^ddb2866c]. Why it matters - Function calling is what turns a chat model into a working product: the model's response triggers actions in other systems rather than ending as plain text.- For non-technical builders, it enables prototyping by pairing a model with familiar tools — like a database — instead of writing traditional application logic.- Understanding this mechanism helps you see how an AI wrapper moves a user from zero to one: idea in, structured outputs and artifacts out.