YC S26 Startup Mentlio Turns AI Coding Spend Into Cost-Per-PR, 24.9% Cheaper at 98.93% Accuracy

ycombinator · x · 2026-08-19

Mentlio (YC S26) launches with a pitch of turning AI coding spend into a measurable unit: cost per PR, reuse, and downstream quality, benchmarked against industry. It claims to cut waste without touching prompts, via cache hits, less context bloat, and auto-routing. On Terminal-Bench 2.1, its local router kept 98.93% of Fable 5's accuracy at 24.9% lower cost on Claude Code.

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