Cost per task: Using cheap classifiers to route across Gemini models and thinking levels

Key points

• • Cost per task: Using cheap classifiers to route across Gemini models and thinking levels - Google Developers Blog Cost per task: Using cheap classifiers to route across Gemini models and thinking levels NOV.
• • The 7-bucket breakdown shows where gemini-3.5-flash-lite and the heuristic router missed tasks and how Router Jev: Flash-Lite to 3.8 LOW recovered 100% accuracy: The strongest setup without a router was Gemini 3.8 Flash on low thinking.
• • We ran a 50-question, auto-graded, coding-agent benchmark against live Gemini and Jev APIs to test whether a near-free classifier can route each task to the cheapest model that still gets it right.