Starter
For validating an AI product before you need high volume.
Product credits
$10
500 credits each month
Recurring subscription billed through Creem
- Prompt generations
- Assistant runs
- Library usage
Build prompts that actually work.
Turn rough ideas into model-ready prompts, then test and reuse them from one workspace.
Built for teams that need reliable AI output, not another prompt graveyard.
Prompt Generator
Role / Task / Context / Output
Prompts assemble in real time.
Optimized for the AI models you already use
Gemini
Claude
OpenAI
Grok
deepseek
Mistral AI
Llama
perplexity
Workflow
From rough idea to reusable prompt asset.
01
Pick model
02
Generate
03
Refine
Prompt Generator
Turn rough instructions into structured prompts with role, goal, context, constraints, and output format.
Prompt Optimizer
Improve existing prompts for clarity, specificity, structure, and model fit without starting over.
Prompt Assistant
Use generated prompts as the basis for testing and iteration inside the app workflow.
Prompt Library
Save, favorite, restore, and reuse prompts instead of rebuilding the same instructions repeatedly.
Plans for prompt work that repeats.
Simple plans built around credits-use them for prompt generations, assistant runs, and library usage.
Pro
For teams and products that need more generation capacity.
Product credits
$20
1,500 credits each month
Recurring subscription billed through Creem
- Prompt generations
- Assistant runs
- Library usage
Credits Pack
One-time credits you can stack on top of any plan.
Product credits
$5
200 credits in one payment
One-time checkout, credits added instantly
- Prompt generations
- Assistant runs
- Library usage
Credits update your balance and history together.
FAQ
Start with one prompt. Keep the system.
What is Prompt Builder?+-
Prompt Builder helps you generate, refine, test, and save prompts that work, all in one workflow.
Which AI models do you support?+-
You can structure prompts for ChatGPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, Perplexity, image models, video models, and coding assistants.
Can I test my prompts without leaving Prompt Builder?+-
Yes. The prompt assistant lets you run and refine prompts inside the same workspace before saving the final version.
No credit card required. Upgrade anytime.
Start freepromptbuildkit