Reddit Thread: How to Route Fast/Cheap/Deep Model Tiers in Search Agents
MeasurementExpert428 · reddit · 2026-08-23
A developer asked Reddit for production model stacks in a multi-tier search/research agent, avoiding routing everything through one flagship model:
- Tier 1 (fast/background): high-frequency, low-latency parsing of search snippets, JSON structuring, domain filtering — must be cheap and fast.
- Tier 2 (consumer/free): snappy conversational answers for standard queries.
- Tier 3 (deep research/pro): multi-hop reasoning, cross-examining conflicting sources, academic-grade synthesis.
They also asked which single model people would deploy as the primary brain balancing instruction-following, context handling, and factual synthesis.
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