OnlyPrompts

Designed for business users who need reliable, outcome-focused AI outputs rather than experimental prompt engineering, the platform provides curated prompts for marketing, finance, HR, legal, research, customer service, and dozens of other professional domains.

Each prompt in the library has been tested and designed to produce specific, predictable outcomes rather than generic responses.

This is the core differentiator from free prompt lists found online: OnlyPrompts prompts are crafted with the precision needed to generate genuinely usable professional outputsnot conversation starters, but production-ready templates that deliver consistent results when applied to real work tasks.

The side-by-side testing feature allows users to compare different prompt variations for the same task simultaneously, identifying which version produces the strongest output across different AI models. This comparative testing capability is valuable for teams that want to optimize their prompt workflows empirically rather than through trial and error over time.

Direct AI model integration within the platform supports GPT-4, Claude 3 Sonnet, Claude 3 Haiku, and Google Gemini, allowing users to run prompts against multiple models without switching tabs or managing separate API keys. A credit system provides the currency for these in-platform test runs and model interactions, with credits included in all pricing tiers.

OnlyPrompts is available exclusively through one-time lifetime deals rather than monthly subscriptions, with a 60-day money-back guarantee. Plan 1 costs $59 for 3,000 AI credits per month, Plan 2 at $118 provides 10,000 credits per month, and Plan 3 at $177 gives unlimited monthly credits. This structure means users pay once and benefit indefinitely without recurring charges.