Your Voice Agent Doesn't Need a Frontier Model
summary
Ace runs on Haiku 4.5 and trades model thinking for engineered orchestration: lesson planning, memory of student state, and next‑step decisions move into a deterministic state machine that hands the model a tight brief each turn. The result is real measurements not promises — response time drops to ~900 ms vs multi‑second waits from frontier models, at the cost of upfront scaffolding code paid once rather than per turn.
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