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Every one has a lever next to it, and every one fails open: when a limit is reached, events flow through unjudged and nothing in the request path waits.",[612,613,614,629],"table",{},[615,616,617],"thead",{},[618,619,620,623,626],"tr",{},[621,622],"th",{},[621,624,625],{},"At the default",[621,627,628],{},"The lever",[630,631,632,654,669,689],"tbody",{},[618,633,634,638,641],{},[635,636,637],"td",{},"Money",[635,639,640],{},"$0.042 per million input tokens, about $6 per 100k judged events",[635,642,643,647,648,647,651],{},[644,645,646],"code",{},"when",", ",[644,649,650],{},"cacheKey",[644,652,653],{},"state",[618,655,656,659,662],{},[635,657,658],{},"Rate",[635,660,661],{},"1,200 calls per minute per account",[635,663,664,647,667],{},[644,665,666],{},"budget.perMinute",[644,668,650],{},[618,670,671,674,681],{},[635,672,673],{},"Latency",[635,675,676,677,680],{},"up to 2 s before a ",[644,678,679],{},"keep"," event drains, client unaffected",[635,682,683,686,687],{},[644,684,685],{},"timeoutMs",", a tight ",[644,688,646],{},[618,690,691,694,697],{},[635,692,693],{},"Egress",[635,695,696],{},"the whole event, before redaction",[635,698,699,647,701],{},[644,700,653],{},[644,702,703],{},"providerOptions.gateway.zeroDataRetention",[705,706,637],"h2",{"id":707},"money",[608,709,710,711,715],{},"Jev bills input tokens only, at $0.042 per million at the time of writing. The fifteen requests on the ",[712,713,714],"a",{"href":460},"overview"," cost $0.00007. A 1.5k-token event is about $0.00006, so 100k judged events are about $6, and a million are about $60. Prices move; the model page has the current figure.",[608,717,718],{},"What decides the bill is how many events reach the model, not how many signals you define. All signals due for one event share one call, so adding a question to a signal that already runs is close to free:",[720,721],"signal-batch",{},[723,724,725,739,748],"ul",{},[726,727,728,730,731,734,735,738],"li",{},[644,729,646],{}," is the first lever. ",[644,732,733],{},"fault"," on ",[644,736,737],{},"status >= 400"," costs nothing on successful requests.",[726,740,741,743,744,747],{},[644,742,650],{}," is the second. An outage produces thousands of identical 502s; a key on ",[644,745,746],{},"path + error.name"," makes it one call and serves the rest from cache.",[726,749,750,752],{},[644,751,653],{}," is the third. The default sends the whole event. Picking the six fields the question needs cuts tokens and is the same change that fixes egress below.",[705,754,658],{"id":755},"rate",[608,757,758,759,761,762,765],{},"The limit that binds before money is the account rate: 1,200 requests per minute per TypeSafe account, about 20 a second. ",[644,760,666],{}," (default 600) is a fixed one-minute window per process, so with four instances on one account set it to 300. Past the window, events pass through unjudged and ",[644,763,764],{},"stats().skipped"," goes up.",[608,767,768,769,772],{},"A failed call opens a breaker for ",[644,770,771],{},"budget.cooldownMs"," (default 30 s), so a 429 or an outage at the model costs you a 30 s gap in verdicts, not a queue.",[705,774,673],{"id":775},"latency",[608,777,778,779,781,782,784],{},"A ",[644,780,679],{}," signal runs before the sampling decision and waits for the verdict, up to ",[644,783,685],{}," (default 2 s). Two things make that acceptable:",[723,786,787,797],{},[726,788,789,790,792,793,796],{},"The response is already sent. ",[644,791,679],{}," and ",[644,794,795],{},"enrich"," run after the request finishes, so the client never waits on the model.",[726,798,799,802],{},[644,800,801],{},"durationMs"," on the event is the request's duration, measured before keep hooks run. The judgment does not inflate your latency charts.",[608,804,805,806,809,810,812],{},"What it does delay is the event reaching your drain, by the model's round trip. Keep signals belong on narrow paths (",[644,807,808],{},"\u002Fapi\u002Fcheckout",", not every 200), and ",[644,811,795],{},"-only signals have no such wait.",[705,814,693],{"id":815},"egress",[608,817,818,819,821,822,825,826,828,829,833,834,837,838,840],{},"The model reads what ",[644,820,653],{}," gives it. 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Inference runs in your process with your key; evlog holds no key and proxies nothing.",[705,1025,1027],{"id":1026},"what-never-happens","What never happens",[723,1029,1030,1033,1040],{},[726,1031,1032],{},"A keep signal never drops an event. It promotes, and head sampling stays deterministic.",[726,1034,1035,1036,1039],{},"A verdict is never prose. Columns are typed values with a probability, and nothing else is added to the event unless you ask for it (",[644,1037,1038],{},"stampModel",").",[726,1041,1042,1043,1049],{},"A limit never surfaces as an error. 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Each with its lever.","md",[1064,1067],{"label":41,"icon":44,"to":460,"color":1065,"variant":1066},"neutral","subtle",{"label":436,"icon":84,"to":473,"color":1065,"variant":1066},{},{"title":468,"icon":471},{"title":468,"description":1061},"HgIQK99vkpnPlMgmRLZM2-Rtt1APy13RZrf_k4xrzSc",[1073,1075],{"title":463,"path":464,"stem":465,"description":1074,"icon":466,"children":-1},"Three question shapes, each with the column it produces: a yes\u002Fno with a probability, one option out of a list, or a position on a rubric.",{"title":436,"path":473,"stem":474,"description":1076,"icon":84,"children":-1},"Every option of defineSignal and createSignals with its default, the column format, the stats() counters, and the test helpers in @evlog\u002Fsignals\u002Ftesting.",1791034608238]