Diferencias de prompts y tokens
Compara dos versiones por líneas y mide el cambio en tokens y bytes UTF-8.
Study guide & lesson outline
LEARNING CONTRACTUnderstand → implement → investigate
Goal: explain the mechanism in this lesson, reproduce one example and test a failure case. Reading alone does not mark mastery.
- Understand: state assumptions, shapes/units and a counterexample.
- Implement: reproduce a numerical example and inspect boundaries.
- Investigate: compare one alternative under a matched budget.
01Configurar
02Añadir entrada
Configura los parámetros, carga un ejemplo o pega tus datos.
03Revisar resultados
Configura los parámetros, carga un ejemplo o pega tus datos.
La vista puede estar truncada; el JSON exportado incluye todos los resultados calculados.
Cómo interpretar los resultados
Pega A y B. El diff conserva espacios y muestra líneas añadidas y eliminadas. Los tokens usan la codificación elegida; no se evalúa la calidad semántica. Máximo: 20.000 caracteres y 500 líneas por versión.
Referencias del método
Assumptions, implementation & acceptance
Line edits and token deltas are different quantities. Whitespace affects tokenization; a line edit is not semantic equivalence.
Reviewed counting units, statistical assumptions and numerical examples. Provider accounting and actual GPU allocation still require external measurement.
Before running: predict a boundary case
Line edits and token deltas are different quantities. Whitespace affects tokenization; a line edit is not semantic equivalence.
Hint: isolate the assumption
Keep the baseline input fixed, change one parameter or boundary, and compare both the numerical result and the claimed units. A passing example verifies this fixture only.
Minimal executable example
Save the example and linked modules in one folder. Use Node.js 22 or newer, then run node prompt-diff.mjs. npm install gpt-tokenizer@4.1.0
import {encode as rawEncode} from 'gpt-tokenizer/encoding/cl100k_base';
import {promptDiff,inspectDataset,chunkDocument,compareScores,estimateVRAM,samplingLab,speculativeLab} from './research-core.mjs';
const encode=s=>rawEncode(s,{disallowedSpecial:new Set()});
const result=promptDiff('a\nb\nc','a\nx\nc',encode);
console.log([result.inserted,result.removed,result.unchanged]); // [1,1,2]Test and transfer
Line edits and token deltas are different quantities. Whitespace affects tokenization; a line edit is not semantic equivalence.
Record input, code version, expected result and observed result in the notebook below. Then construct a counterexample that violates the assumption above and explain why the original conclusion no longer follows.
Download complete kit (.tar.gz) · Complete reference kit and regression checksPredict, test and keep evidence
Before revealing an answer, predict one result. After the exercise, record the discrepancy and a transfer test. Saved locally across language editions.
Open notebook / export / clear →The mathematical review scope is recorded per lesson. It does not establish empirical paper reproduction; report suspected errors in your notes. Review scope