Side by side
OnlyPrompts vs PromptPerfect
Compare what each tool does, what it costs, and how it fits your workflow.
Designed for
Automate 37,000+ tasks with 150,000+ prompts
AI Prompt Generator and Optimizer
Primary task
Prompts
Prompts
Pricing
Free Trial · Trial; then from $17/mo
Freemium · Free + from $16.67/mo
Pricing details
Free + from $17/mo
Free + from $16.67/mo
Billing cycle
Monthly
Monthly
API access
Not documented
Not documented
Platforms
Web
Web
Integrations
Make
Not documented
Source rating
4.1 / 5 · 15 ratings
3.0 / 5 · 8 ratings
Catalog views
17k
19k
Estimated monthly traffic
—
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Catalog imported
30 Aug 2026
30 Aug 2026
Listed strengths
- 40% OFF offer for early adopters
- 150,000 prompts for 37,000 tasks
- Tailored for every department (Marketing, RnD, Finance, etc…)
- New prompts updated monthly
- Side-by-side prompt test
- Optimizes prompts for LLMs/LMs/LMOps
- Supports ChatGPT, GPT-3.5, DALLE, StableDiffusion
- Multi-goal optimization
- Customizable optimization settings
- Supports any language
Listed limitations
- Free trial in a limited time
- Paid version required for full access
- Limited model compatibility
- Targeted at specific users
- Only optimizes language prompts
- Non-obvious results comparison
- Subscription can be expensive