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Testeur de Cohérence LLM — Outil en ligne gratuit

Colle N sorties — mesure variance, similarité, stabilité

Colle plusieurs sorties LLM du même prompt. Mesure variance, similarité Jaccard, score de stabilité. Détecte quand baisser la température.

Workflow: Run your prompt 3-10× at your chosen temperature. Paste each output below. We measure the variance across them.
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LLM consistency tester

Measure LLM output variance. Jaccard, cosine, stability score across N runs.

How to use this tool

  1. 1

    Run your prompt 3-10 times

    Same prompt, any model, save the outputs.

  2. 2

    Paste them below

    One output per text area. Use the + button to add more.

  3. 3

    See consistency metrics

    Length variance, Jaccard similarity, cosine, stability score.

Frequently Asked Questions

Why test LLM consistency?
For production LLMs, variance is a killer. A prompt that works 9/10 times but fails the 10th is production-fragile. Teams need to know: is the variance acceptable? Should I lower temperature? Is this task fundamentally non-deterministic?
What is Jaccard similarity?
Jaccard = |A ∩ B| / |A ∪ B| for word sets. Value 1.0 = identical words, 0 = no shared words. For most LLM outputs, 0.3-0.6 = semantically similar with different wording, 0.7+ = very close phrasing.
How to improve consistency?
Lower temperature (0.0-0.3 for deterministic tasks). Add more few-shot examples. Use structured output (JSON schema). Pick a lower-creativity model. For truly deterministic tasks consider fine-tuning.

À retenir

  • LLM Consistency Tester is a free, browser-based ai tool — paste n outputs — measure variance, similarity, stability.
  • Non signup, no downloads, no file uploads. Outils run in your browser; the few that need an outside service say so on the page.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use LLM Consistency Tester

  1. Open the tool: Launch LLM Consistency Tester on Outilolis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

LLM Consistency Tester — Quick Facts

Prix
Gratuit — sans limites, sans filigrane, sans paywall
Confidentialité
Traité dans votre navigateur. Les outils qui ont besoin d’un service externe l’indiquent sur la page. Les visites sont comptabilisées (Google Analytics).
Plateforme
Tout navigateur moderne — desktop, tablette ou mobile
Catégorie
AI Outils on Outilolis
Hors ligne
Works offline after first visit (Progressive Web App)
CaractéristiqueDétails
OutilLLM Consistency Tester
CatégorieAI
Inscription requiseNon
Téléversement de fichierAucun — traité dans le navigateur
Compatible mobileEntièrement adaptatif
CoûtGratuit pour toujours

Why Use LLM Consistency Tester?

You should try LLM Consistency Tester for a quick, private way to paste n outputs — measure variance, similarity, stability. Processing happens in your browser and files are never uploaded; the few tools that need an outside service say so on the page.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Confidentialité. Cet outil fonctionne entièrement dans votre navigateur. Vos données ne sont jamais envoyées à un serveur.