Which agent steps deserve the expensive model in long-running workflows?

Top-Construction938 · reddit · 2026-08-27

For long-running agents, the author discusses model policies for planning, tool selection, execution, recovery, and verification. Sending every tool call to the strongest model is predictable but budget-heavy, while using cheaper paths makes failures harder to diagnose.

The proposed strategy reserves the expensive model for ambiguous planning, recovery after repeated failures, and strategy-shifting decisions. Lower-cost paths handle routine retrieval and deterministic transformations. The post asks for the community's escalation policies and which steps are most worth the extra capability.

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