Research-backed prompting techniques from arXiv, rated for practical value
AI voice generator and voice cloning for text-to-speech
Stage
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Founded
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Based in
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Pricing model
Freemium
Freemium
Pricing
Not given
Free: up to 500 characters per generation (3 daily attempts for guests). Starter: $14.50/month or $174/year, includes 1,500 credits/month. Studio: $49.50/month or $594/year, includes 6,000 credits/month. Enterprise: $149.50/month or $1,794/year, includes 30,000 credits/month. Extra credits: 200 cred
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
Over 200 AI voices across 85 languages
Voice cloning with private voice slots
Audiobook maker with chapter-by-chapter creation
MP3 download and free replay without generation cost
Text-to-speech API for developers
Up to 10,000 characters per generation with active subscription
Credit-based billing system
Generation history and script saving
Priority generation queue with Studio and Enterprise plans
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
Free preview with 500 characters without account or payment
Replay and download audio for free after generation
Commercial license included with Studio and Enterprise plans
Voice cloning from personal voice samples
Support for 85 script languages with natural narrators
PromptLabster