OpenAI builds and deploys advanced AI models like GPT-4o for autonomous agents and workflows.
nib
€7Starting price
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About nib
nib ingests unstructured materials such as notebook photos, voice notes and typed paragraphs, then produces a PRD.md file that coding agents can use to build software. The process begins with an intake phase where a vision model transcribes handwritten content and Whisper converts voice notes into text. Users review a mirrored summary of extracted points, each tagged with its source, and correct any misunderstandings before proceeding. A short interview asks targeted questions about missing details, with skipped questions recorded as assumptions in the final specification. The output is a ten-section document including goals, non-goals, acceptance criteria and decisions, formatted for direct use by agents such as Claude Code, Cursor or Codex. Uploaded materials are processed once and deleted after thirty days; no account is required until the final download.
Key features
- Handwriting transcription via vision model
- Voice note transcription via Whisper
- Automatic grouping of photos by place and date
- Seven targeted interview questions for missing details
- PRD.md with ten structured sections
- Agent context files for CLAUDE.md, AGENTS.md or Cursor rules
- Scaffolded GitHub repository in Pro pack
- Frontier model refinement in paid build packs
Use cases
- Drafting a plant tracker application from scattered notes
- Planning a CLI tool based on voice memos from a walk
- Designing a browser extension using typed paragraphs and photos
Pros
- Accepts multiple input types: photos, voice notes and typed text
- Generates structured PRD.md with goals, non-goals and acceptance criteria
- Supports agent frameworks including Claude Code, Cursor and Codex
- No subscription required; one-time payment for build packs
- Deletes uploaded content after thirty days
Cons
- No editing tools for images or media
- Albums created from photos are public by default
- No API or programmatic access
- Limited to one project per build pack
Frequently asked questions about nib
Do I have to create an account to use nib?
No account is required to use nib until the final download. Photos, voice notes, summaries, questions, and the spec itself can all be processed without signing in.
What happens to my photos and voice notes after uploading?
Uploaded materials are read once, converted into text, and then deleted after thirty days. They are not used for training any models.
Which models does nib use to process my materials?
Whisper is used for voice notes, Mistral Small 3.1 for photographs, and Qwen3 for written content. These models run on Workers AI and are not used for training.
Will nib write my application code?
No, nib does not write application code. It generates a PRD.md file that coding agents can use to build software based on the provided specifications.
Does nib work with Cursor and Codex, or only Claude Code?
nib works with all three tools. The build pack generates context files tailored to the selected agent, such as CLAUDE.md, Cursor rules, or AGENTS.md.
Is there a subscription fee for using nib?
No, there is no subscription. The spec generation is free, and build packs are one-time payments for a single project. There is nothing to cancel.
