Research-backed prompting techniques from arXiv, rated for practical value
Fix AI writing fast
Stage
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Founded
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Based in
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Pricing model
Freemium
Freemium
Pricing
Not given
Free: 100 credits at sign-up, topped up by 40 every week, 2 models per rewrite, 4 fast models including GPT-6 Luna, articles up to 6,000 words. Pro: $19 per month, 1,500 credits every month, up to 5 models per rewrite, all 9 models including Claude Sonnet 5.5 and Grok 4.7, articles up to 15,000 word
Key features
715 published prompting techniques scored 80+ for practical value
Scores based on practitioner applicability, evidence strength, effect size, and novelty
Copy-paste prompts for ChatGPT, Claude, and Gemini
Links to original arXiv papers for every technique
Weekly newsletter with top techniques every Sunday
Four views per technique: breakdown, plain language, digest, and role-based guides
Browsable catalog organized by technique type and publication month
No account required to access all pages and techniques
Lab score range 80-97 indicates technique quality and applicability
Mark passages and add notes about what's wrong
Flip through rewrites from multiple AI models at once
Choose from 9 AI models including GPT-6 Luna, Claude Sonnet, and Grok
Preserve undo history and original drafts
Support for TipTap-based editors and built-in document editor
No need for personal API keys
Credit-based pricing with transparent cost estimates
Handle articles up to 6,000 words on Free plan or 15,000 on Pro
Access 2 models on Free plan or up to 5 on Pro plan
What makes it different
Transparent scoring methodology with links to original papers for verification
Techniques tested across multiple models and use cases to confirm practical transferability
Never leave your editor—rewrites happen in-place without copy-paste
Only the passages you mark change; the rest of your draft stays exactly as written
Compare rewrites from multiple AI models side by side in one click
Free plan with 100 credits and weekly top-ups, no card required
Preserves full undo history even after accepting rewrites
PromptLabster
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