ChatGPT
Best overallChecked 1h agoLink OKFree plan available
Why it wins
Handles all five deliverables efficiently. Produces polished, structured output.
When not to use
When you need human input or feedback from your team during the workflow.
Free options first. Curated shortlists with why each tool wins and when not to use it. · 209 reads
Also includes a prompt pack (5 copy-paste prompts)
Handles all five deliverables efficiently. Produces polished, structured output.
When you need human input or feedback from your team during the workflow.
Free tier supports all five deliverables. Good for practicing workflows.
When you need advanced customization or iteration.
| Tool | Pricing | Verified | Link |
|---|---|---|---|
| ChatGPT | Free plan available | Checked 1h ago | Try → |
| Google Gemini App | Free plan available | Checked 1h ago | Try → |
Copy and paste these prompts into your chosen tool to get started.
Pick a real product challenge from your work or a case study. Gather 5-10 research notes or user feedback items. Ask your AI tool to synthesize the research into a one-page summary of the core problem and user needs.
Using the research summary, ask the AI to draft a PRD section. Include a problem statement, three user stories with acceptance criteria, and success metrics.
Ask the AI to generate a prioritized list of 5-7 feature ideas to solve the problem. Use RICE or a similar framework to rank them.
Pick the top-ranked feature. Ask the AI to write a detailed spec: inputs, outputs, failure modes, and dependencies.
Design a two-week experiment to validate the feature. Include: target users, key metrics, success criteria, and a brief launch plan.