Korean Personas and the Small Model Problem — A 4-Tier Truncation Pattern for On-Device AI
Anthropic’s Persona Selection Model (PSM, 2026) makes the claim explicit: “A persona is not the same thing as the AI system itself. The LLM is simulating a character, and the Assistant is just one instance of that character.” Karpathy framed the same shift from the other end at Sequoia Ascent 2026: “Install .md skills instead of install .sh scripts.” Spec-as-instruction at the frontier. But if frontier models are “on the rails,” on-device small models are “off-road in the jungle with a machete.” ...