GPT Prompt Tester
Experiment with GPT·LLM prompts, analyze cost, and track execution history.
A structured local workspace built for serious AI development.
Your Core Workspace for GPT API Testing
Build System, User, and Assistant prompts in one structured view, and instantly inspect responses, tokens, and estimated cost.
- Three-part prompt structure (System / User / Assistant)
- View responses, tokens, and cost in a single screen
- Rapid experimentation before production deployment
Experiment with Model Options and Web Search in Real Time
Adjust Temperature, Top P, Max Tokens, and Web Search settings directly inside Playground and validate results instantly.
- Instant adjustment with intuitive sliders
- Enable Web Search with region and context control
- Rapid validation of model and option combinations
Restore Any Experiment Instantly
Every run is automatically saved — prompts, options, and results. Reopen any previous state with a single click.
- Automatic execution history
- One-click restoration for faster tuning
- All data stored locally on your device
Monitor Usage, Tokens, and Estimated Cost at a Glance
Visualize your token consumption and cost trends based on real Playground execution history.
- Time-based call, token, and cost summaries
- Detect cost spikes and usage patterns
- Analyze model and tool usage distribution
Writing Studio — Turn Prompt Experiments into Real Content
Define your topic and direction, and GPT generates a structured draft.
Move seamlessly from tested prompts to WordPress publishing.
Experience prompt workflows that go beyond experimentation.
- Full control over title and body generation prompts
- Apply Playground-tested settings directly
- Publish immediately or continue editing anytime
Image Maker — A Structured Workspace for Image Iteration
Go beyond one-off image generation.
Generate → Organize → Compare → Refine
Create section images, thumbnails, backgrounds, and style transformations — all in one flow.
- Theme-based generation (Remix / Custom / Section / Background)
- Organize results in Gallery and iterate quickly
- Finalize decisions with side-by-side comparison and prompt diff view
Who Is It For?
For those who want to iterate prompts rapidly and analyze cost and performance locally.
Developers Using GPT API in Production
Gain precise insight into model output, tokens, cost, and latency.
Professionals Optimizing Prompt Performance
Systematically compare models, options, and tools to find optimal prompts.
Creators Designing Content & Automation Workflows
Rapidly test and compare multiple prompt variations.
PMs Running AI PoCs
Move fast with experiments and maintain clear cost visibility.
Students and Researchers
A more structured alternative to basic Playground environments.
Privacy-Conscious Users
Keep API keys and experiment data securely stored on your local machine.
Explore More Advanced Features
Templates, multi-panel mode, variable systems, and more are available on the Features page.