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 37-48 of 194 prompts
Evaluate a regression model
Evaluate regression model performance
Create lag features for time series
Engineer time series features
Generate interaction features
Discover feature interactions
Design an A/B test report
Report A/B test results
Handle concept drift in models
Maintain model performance over time
Create a data strategy proposal
Propose data initiatives strategically
Build a feature engineering pipeline
Create reproducible preprocessing pipelines
Analyze feature importance
Understand model feature importance
Create a data visualization
Build impactful visualizations
Select features using multiple methods
Select the most predictive features
Tune hyperparameters with Optuna
Optimize model hyperparameters
Build an ML training pipeline
Automate ML training pipelines