Nate B. Jones demonstrates how to run a lower-cost model through established coding-agent harnesses instead of paying premium-model prices for every task. He separates four layers that are often confused: the model, the harness, the durable project context and the temporary conversation state.
Nate B. Jones explains that a fresh provider session can retain repository files and written instructions while losing the previous conversation and prompt cache. A concise handoff file can preserve decisions, current status, constraints and next steps so another model can continue without reconstructing the whole session.
Nate B. Jones recommends using cheaper models for bounded work with objective tests, such as migrations, repetitive edits and well-specified feature slices. Stronger models remain better for unclear requirements, difficult debugging, architectural judgment and changes whose failure would be costly, so the practical strategy is task routing rather than wholesale replacement.
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