Jev knot 成本拆解：万次决策从 $4.20 降到 $0.42
一份 Jev knot 成本瀑布图：路由、缓存、0.85 门控三层扣减，把每万次决策从 $4.20 压到 $0.42。
WHOEVER LEAKED THIS JEV KNOT COST BREAKDOWN SHOULD BE OWNING UNIT ECONOMICS I thought cutting an agent bill meant switching to a cheaper model and pretending the quality drop didn't matter. Apparently not. This knot's cost waterfall is much more interesting: → BASELINE sits at $4.20 per 10,000 decisions when every packet goes through a full LLM call, no routing, no cache, no gate, pure "ask Claude everything" → ROUTING subtracts $2.10 by sending each packet into one of 3 trefoil lobes (INTAKE, DECIDE, ACT) instead of broadcasting, 393 packets per second across 3 lanes → CACHE subtracts $0.90 by hitting the TUBE LOAD cache for anything the state has already resolved in the last window, lap 4 of 8 reuses the previous answer → GATE subtracts $0.78 by dropping anything under 0.85 before any model call fires, 57% ACT / 24% IGNORE / 10% ESCALATE / 9% RETRY split from the Sankey → JEV closes at $0.42 total for 10,000 decisions, 213ms p50, 666ms p99, 1.84 billion tokens per minute, flags 7 packets whose cost drifted past the waterfall baseline this lap so you get: Baseline $4.20. Routing minus $2.10. Cache minus $0.90. Gate minus $0.78. the interesting part isn't a cheaper model. it's giving every packet four subtractions the baseline can't argue with. Instead of eating a $4.20 bill per 10K decisions on a full Claude loop, you route through the trefoil, cache the tube load, gate at 0.85, and land at $0.42 with 90% off and output literally free. Route the packet. Cache the lap. Gate the write.
这条是引用着另一条写的：「长文：如何搭好 Jev 驱动的 agent 技术栈」