Frugal AI: The Green Model Router
The Green Model Router
Frugal AI Router is an open-source proxy layer that sits between your application and AI providers. It analyzes incoming requests, benchmarks them against efficiency metrics, and routes them to the most resource-appropriate model. Think of it as a “green load balancer” for AI.
Core Components
- Request Analyzer: Classifies task complexity (simple Q&A vs. complex reasoning)
- Model Efficiency Index: Database of models ranked by performance-per-watt
- Smart Router: Directs requests to the most efficient capable model
- Dashboard: Visualizes energy savings, cost reduction, and carbon impact
Problem to Solve
- Wasteful AI defaults: Developers use powerful models for simple tasks (summarization, classification, basic chat) that smaller models handle equally well
- No visibility: There’s no easy way to measure or compare the environmental footprint of AI choices
- Cost explosion: Overpowered model usage drives up API costs unnecessarily
- Hosting blind spot: Web hosts offering AI features have no tools to optimize or report on sustainability
Target Audience
- Web hosting providers adding AI features to their platforms
- WordPress plugin developers integrating AI functionality
- Agencies and developers building AI-powered sites for clients
- Enterprise teams with sustainability reporting requirements
- Open-source projects wanting responsible AI integration
- …
| Role | Contribution |
|---|---|
| Backend Developers | Build the routing logic, API proxy, model abstraction layer |
| Frontend/UI Developers | Create the dashboard and configuration interface |
| DevOps/Platform Engineers | Containerization, deployment, scaling considerations |
| Data/ML Enthusiasts | Help build the task classification and benchmarking system |
| Sustainability Advocates | Research carbon metrics, validate methodology |
| Technical Writers | Documentation, pitch materials, demo scripts |
Hackathon Goals
- Deliver an MVP routing proxy across multiple AI providers. Build a working proxy that can route requests between 2–3 model providers (e.g., OpenAI + Anthropic) and different models, with a stable API surface that teams can drop into existing apps.
- Add an initial task complexity signal to drive routing. Implement a basic complexity classifier (rule-based or lightweight ML) that predicts “cheap vs. capable” needs and selects an appropriate model accordingly.
- Make footprint and cost observable by default. Log every request/response with estimated cost and energy/CO₂ proxy metrics (even if coarse at first), ensuring audits and comparisons are possible.
- Provide a minimal dashboard that proves value. Ship a simple dashboard that explains routing decisions and quantifies savings (cost, estimated energy/CO₂), so users can validate impact quickly.
- Enable configurable routing strategies beyond the default. Support switchable policies (cost-first vs. green-first vs. performance-first) via configuration and rules, so teams can align routing with their priorities.
- Lay the foundation for ecosystem adoption and benchmarking. Package integrations (e.g., a WordPress wrapper) and a model-efficiency benchmarking harness, with a path toward later stretch features such as a developer browser extension and a public “greenest implementation” leaderboard.
Project Lead

Daniel Heinz
Postdoctoral Researcher,
Karlsruhe Institute of Technology
#FrugalAI
#GreenModelRouter
Project Mentor






