Totally agree. I’ve been building an AI visual tool recently and experimented with both approaches. The latency and c ost of generic "agentic" browser use are absolute dealbreakers for real-time consumer apps right now. Structured APIs (even just chained LLM calls with strict JSON schemas) are not only 40x cheaper, but more importantly, they are deterministic enough to actually build a stable product on top of. Computer use is an amazing demo, but structured APIs are what pay the server bills.
"Agentic engineering" were always just FADs to bring in more revenue for token providers.
If I think an LLM is good for something I create well defined, very deterministic "middleware" for that purpose on top of Openrouter.