AI Engineer World's Fair 2026 — unofficial import demo

There is no best model. There's only the right model for a given task, and the right model depends on your team's preferences, not a benchmark score. This talk makes the case for preference-aligned routing: choosing models by the constraints that actually matter — cost, latency, task type, model preference — instead of a single leaderboard number. We'll demo a sub-200ms routing decision running on a purpose-built 30B MoE model with no application code changes, walk through real coding workflows routing most traffic to open models without losing accuracy, and show where this goes next: evals, caching, and personalization.