Thorsten Ball on agents: always use frontier models, cheaper ones waste your time

danbri · x · 2026-10-31

Sourcegraph's Thorsten Ball publishes "How I work with Agents" (as of October 2026), distilling advice he's been DMing friends: always use the latest and greatest models — anything else is potentially a waste of time, because if a model is wrong 10% of the time you don't know which 10%, and you pay for it repeatedly. Reposter anselm adds his nuance: cheaper models for public-facing services, frontier-only for his own research.

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