Improve any prompt
Prompt improver templates for diagnosis, rewrite, and variable extraction.
Prompt engineering prompts treat the prompt as a product—iterate with tests.
Prompt engineering on LMpad
Improve, test, and compare prompts — treat them like code.
- 1
Save the baseline
Store the original prompt on your pad before improving.
- 2
Run the improver
Use prompt-improver templates to diagnose missing role, format, and constraints.
- 3
A/B models
Run the same prompt on two models with the comparison template; save both outputs.
- 4
Version with remix
Duplicate before big edits so you can roll back.
- 5
Publish playbooks
Share generic engineering guides on your author page, not proprietary chains.
Use cases
AI builders
Benchmark prompts before shipping agent features.
Prompt freelancers
Client deliverables as pad folders with saved outputs.
Power users
Personal library of tuned templates across models.
Teams
Standardize on shared seed prompts; remix locally on each pad.
Pro tips
- →Change one variable at a time when testing.
- →Log failure cases in the prompt as 'avoid when…' bullets.
- →Read the OpenRouter guide for model selection tips.
LMpad tutorials
Step-by-step guides for using the site — pad, models, publishing, and more.
Why use LMpad for this
- Copy-ready templates with {{variables}} you fill per use case
- Run instantly in LMpad with your OpenRouter API key
- Save favorites to your personal pad and remix over time
Ready-to-run prompts
Copy, fill in {{variables}}, and run with your preferred model. How to run prompts →
Prompt Improver
Meta-prompt that rewrites weak prompts into clear, structured instructions.
Model Comparison Test Prompt
A standardized benchmark prompt to compare model outputs side by side.
Explain This Code Like I'm Junior
Break down complex code into plain English with analogies and a learning path.
Frequently asked questions
How do I improve a bad prompt?+
Add role, context, format, constraints, and examples—then test on edge cases.
Is this prompt engineering prompt free to use?+
Yes—browse, copy, and run prompts on LMpad at no cost. You bring your own model API key via OpenRouter.
Can I customize the prompt?+
Every prompt supports variables and can be saved to your pad for editing before you run it.
Save prompts to your pad
LMpad is an AI prompt workspace synced to your account. Browse community templates, remix them on your pad, and run with OpenRouter.