Free AI Prompt Library - ChatGPT, Claude, Gemini
Library of 194 free AI prompts for ChatGPT, Claude and Gemini. Sorted by category, one-click copy, no signup required.
Looking for free AI prompts that actually work? Our library gathers 194 prompts tested and optimized for ChatGPT, Claude and Gemini. Everything is 100% free - no signup, no copy limit.
Every prompt is sorted by category (writing, productivity, marketing, code, education…) and comes with concrete examples. You save time by reaching for proven formulations instead of trial-and-error each time.
100% free
No paywall, no mandatory signup to copy a prompt.
Multi-AI
Every prompt works with ChatGPT, Claude, Gemini and Mistral.
Categorized
Filter by topic, difficulty and use case.
Bilingual
Available in French and English, tailored to each audience.
Showing 25-36 of 194 prompts
Design an A/B test report
Report A/B test results
Compute feature correlations with target
Identify predictive features
Engineer date features
Extract features from datetime columns
Structure a data science presentation
Structure data presentations
Analyze feature importance
Understand model feature importance
Build a forecasting model
Forecast time series data
Set up model monitoring
Monitor production models
Write a data analysis memo
Share analysis findings formally
Explain model predictions with SHAP
Make model predictions explainable
Select features using multiple methods
Select the most predictive features
Perform cohort analysis
Analyze user retention by cohort
Write an ML experiment tracking setup
Track ML experiments with MLflow