All recordings

Recorded run

Blank start on 853 stories

Cyclotron starts with no rubric and learns one while deciding 853 stories in order, with every label revealed after each decision.

What to notice

  • The cyclotron scored 86.6%, 94.4%, 93.0%, 95.1%, 97.9%, 95.8% across the 6 windows of 142 stories.
  • Rejecting everything would have scored 83.8%, 81.0%, 81.7%, 78.9%, 76.8%, 76.8%. Read each accuracy beside that number.
  • In the last window the cyclotron beat that baseline by 19.0 points.
  • The first rubric proposal arrived at cycle 24. Until then the decision model worked from the blank start.
  • In the last window the decision model alone scored 95.8%, so the cyclotron's added work did not help there.
  • Accuracy is above the most-common-label baseline in every window, starting with the first, and stays at 93 percent or higher after the first window.
  • All twenty rubric changes happened in the first 410 of the 853 stories; the last 440 ran on the final rubric.

Setup

Full setup of Blank start on 853 stories
Decision modelJev 1.13.0 (jev)
LLM optimizergpt-6-luna
ObjectiveAccuracy
Starting rubricBlank (no written rubric)
Stories reviewedEvery story
Rubric changes consideredEvery 6 cycles
Idea screeningOff
Max rubric optimizationsnull
Rubric trigger basislabel_transitions
Selection policy{"aggregation":"positive","max_secondary_regression":0,"minimum_secondary":null,"positive_class":null,"primary":"accuracy","secondary":null}
First rubricCycle 24
Corpuseditorial-relabel-v4, 853 stories
Window size142 stories
Recorded2026-10-11
Engine commit41608e3081081492044fda1d9a46fc5327472620

Accuracy by window

Each window is 142 stories. The last column is what rejecting everything would have scored.

Accuracy by window of 142 stories
WindowCyclotronDecision model aloneRejecting everything
Stories 1–14286.6%84.5%83.8%
Stories 143–28494.4%94.4%81.0%
Stories 285–42693.0%93.0%81.7%
Stories 427–56895.1%94.4%78.9%
Stories 569–71097.9%97.2%76.8%
Stories 711–85295.8%95.8%76.8%
0%25%50%75%100%142284426568710852stories, to the end of each window
CyclotronDecision model aloneRejecting everything

How the answers were wrong

Accuracy says how often an answer was wrong. These tables say which way. They count the 852 stories whose right answer was revealed.

Final decision
PublishedRejected
Should be published172 stories14785.5% of those to publishPublished: right2514.5% of those to publishRejected: wrong
Should be rejected680 stories284.1% of those to rejectPublished: wrong65295.9% of those to rejectRejected: right
Each row is the answer we should have given. Heavy borders and bold numbers mark right answers. Of the stories it published, 84.0% were right. Of the stories to publish, it found 85.5%.
Decision model alone
PublishedRejected
Should be published172 stories15187.8% of those to publishPublished: right2112.2% of those to publishRejected: wrong
Should be rejected680 stories375.4% of those to rejectPublished: wrong64394.6% of those to rejectRejected: right
Each row is the answer we should have given. Heavy borders and bold numbers mark right answers. Of the stories it published, 80.3% were right. Of the stories to publish, it found 87.8%.

Of 172 stories that should be published, the final decision found 147 and the decision model alone found 151. Of 680 stories that should be rejected, the final decision published 28 and the decision model alone published 37.

Cost

About $0.64 in model calls at list prices: 5,477 decision-model calls ($0.38) and 20 optimizer requests ($0.26).

Price basis: list prices, USD per million tokens, applied to the provider-reported usage on every recorded call; decision model jev (TypeSafe's published price); optimizer gpt-6-luna (LiteLLM model price table (standard tier), read 2026-10-11).

Where the labels came from

Labels are simulated. Original labels came from a single labeling model run under a written rubric. These labels come from two independent blind relabeling passes under an explicit written policy; where the passes disagreed (6 percent of the new stories), the label was settled by hand.

Replay the run

One correction can improve the next tested decision.

Cycle 852 of 852 · 852 revealed · recorded agreement

cyclotron looprubricexamplesitemdecision modelsupporting questionsML modelPublish86%decisionreviewerreviewed labeltrainscombines classifier signals

A standalone model repeats its answer. cyclotron records the correction, tests guidance and configuration changes, then uses only accepted evidence to align later decisions.

This recorded decision

Podolski announces retirement from international football

Model: reject · 100%

Reviewer: reject

A player retirement is routine sports news.

Recorded feedback policy: All. Realized feedback is shown in the playback.

Recorded editorial run · Run

Cycle 852 of 852
Training label
Cycle
Model decision
Human label
Optimization
Evaluation

Prediction, before the label

reject · >99% confidence

Reviewer label

reject · prediction matched

What the revealed feedback says so far

Recall
87%
Of the items that should be a yes, how many it found.
39 of 45 · 95% interval 74%–94%
Precision
95%
Of the items it said yes to, how many were right.
39 of 41 flagged
Accuracy
96%
Of all items, how many it got right.
192 of 200; always “reject” would score 78%

Accuracy is the share of decisions that matched revealed labels. Precision asks how often a “publish” call was right; recall asks how many actual “publish” stories were found. These are running totals, not future results.

Simulated reviewer replay

Visual replay only — clicking these controls never changes the recorded run.

Editorial decision

Recorded agreement

Recorded simulated reviewer explanation, replayed after the prediction. Ground-truth source evidence remains separate from optimizer feedback. The run records 852 explanations; the last optimizer proposal came at cycle 410, and the explanations after it were recorded but followed by no optimizer request. Only recorded correction events appear below.

Curated public source

Podolski announces retirement from international football

Wikinews reports: Podolski announces retirement from international football. The original linked article provides the complete reporting context.

Brief adapted and shortened for this demo; see the original Wikinews article for the complete work. Read original · CC BY 2.5 (Wikinews policy; articles dated through 2024-12-15).

What happened after the label

No optimization was due. cyclotron recorded the prediction and the label.

Recorded reliability

Observed accuracy versus the logged pre-review confidence, using only 852 revealed labels. Hidden labels are not used.

40–60% confidencen=16
Logged 55%Observed 50%
60–80% confidencen=37
Logged 70%Observed 54%
80–100% confidencen=799
Logged 99%Observed 96%

Recorded rolling metrics at this cycle: Brier 0.078 · ECE 0.036.

Matched evaluator-only windows

First 142 vs last 142 items, each scored against frozen simulated reference labels, evaluator-only; never learner feedback.

Accuracy 87% → 96% (rejecting everything would score 84% → 77%) · Brier 0.168 → 0.079 · ECE 0.067 → 0.034.

This permits equal-window comparison across modes; it was not learner-visible feedback.