Last updated: 2026-10-19
Choose the right AI model by task: start with rules or retrieval, escalate to small then mid models only where quality fails, use frontier sparingly, and tune prompts and routing so running costs stay low — model-agnostic, no vendor kickbacks.
How do you choose the right AI model for a business task?
Right-Size Ladder
Rule → Small model → Mid model → Frontier model → Human. Most consultant-style recurring tasks never need frontier if the workflow is decomposed and measured.
Cost control
Running cost is part of the ROI case. We pass through API usage at cost in your report and optimise routing (batching, caching, smaller models for drafts, larger only for exceptions).
Comparison
| Topic | Hourly consulting | Outcome + tuned AI |
|---|---|---|
| Selection driver | Firm standard stack | Cheapest pass per task |
| Running cost | Bundled in hours | Transparent at cost |
| Vendor lock-in | Common | You own prompts/workflows |
Related answers
The Outcome Layer — Free First Task · vs traditional consultancies · hello@theoutcomelayer.com