Illustrative · no measured results
Choose a model only after the facts are clear.
One clear record
Model AMust pass the status-extraction checks
Several consistent records
Model BMust pass the synthesis checks
Dates conflict or an owner is missing
Ask a personResolve the source gap before routing
A colleague reviews either model’s draft before use.
The model can change from one request to the next.
A team preparing project updates need not send every draft to the same model. A routing step can choose a candidate for each request before it answers. RouteLLM studies this selection using learned preferences; a cascade instead tries models in sequence.[S1] Choosing the route does not establish that the resulting answer is correct.
A missing project fact needs clarification.
Our invented workflow distinguishes one clear status record from several consistent records that need combining. Model A is a candidate for the first task; model B for the second. Both must first meet the relevant task requirements. The graphic shows proposed branches, not tested performance.[S3]
When records disagree on the review date, or omit the owner, a person resolves that gap before model selection. A more capable model cannot supply an absent project decision. A colleague still checks either model’s draft before use. This human path surrounds model routing; it is not another language model.
A router’s prediction still needs testing on your work.
A predictive router estimates which model will suit the request. Amazon Bedrock’s documentation makes two relevant limitations explicit: its intelligent prompt routing is optimized only for English and cannot adapt decisions using application-specific performance data.[S2] These are service-specific limits. They make testing the intended languages and exceptions necessary; they do not prove that every router fails on German.
Compare the routed workflow with a fixed, eligible model on the same permitted cases. Keep accepted drafts, incorrect routes, response time, actual cost and human correction together. The extra routing step is worthwhile only if the resulting trade-off helps the task. We have measured no saving or reliability here.
Start with our model-selection cases , then write which requests would take each route and who handles unresolved facts. That gives the router something concrete to be tested against.
