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What is AI Routing?

Learn what AI routing is and how to select the right model for each query. Understand cost-quality tradeoffs and routing strategies.

By DriftRail · Updated

AI routing dynamically selects which LLM handles each request based on query complexity, cost constraints, or specialized capabilities. Simple queries go to cheaper models while complex ones use premium models.

Routing Strategies

  • Complexity-based: Route by query difficulty
  • Task-based: Route by task type (code, chat, analysis)
  • Cost-based: Route by budget constraints
  • Latency-based: Route by speed requirements

Monitoring Routing Decisions

  • Track routing accuracy vs quality outcomes
  • Monitor cost savings from routing
  • Alert on routing failures or fallbacks
  • Compare model performance by query type

Practical example

Short classification tasks use one evaluated path while complex requests are escalated to another.

What to check

Record the routing rule or model version, selected destination, failed routes, and quality by task group.

Limits and tradeoffs

Cheaper calls can increase total cost if incorrect routing produces retries or manual rework.

Maintained by DriftRail. AI assisted the October 2026 content and template revision. Examples are illustrative; they are not measured product benchmarks. Suggest a correction.

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