GeezerVison

Add AI Compare Ninja as a free research and cost-planning website under content/resources/. This uses the existing resource schema and adds one metadata file without images or executable code.

I am Martin Müller, its operator; these facts are prepared with Codex assistance for independent editorial consideration. The website code remains proprietary, and linked downloadable resources keep their own terms. No website source, skills, assets or third-party logos are included in this contribution. Please reuse an existing record if one is present.

AI Compare Ninja is a free editorial resource for researching AI software, comparing provider-sourced prices, plans, limits and alternatives, and planning subscription or LLM API costs. It is available without registration in eight languages.

Resources

• Home and search
• Tool profiles
• Categories
• Side-by-side comparisons
• Prompt templates
• Rule-based prompt checker
• Prompt writing guide
• SKILL.md work instructions
• Assistant instructions
• First-agent setup guide
• Agent-builder comparison
• Custom-GPT alternatives
• Subscription cost calculator
• LLM API cost calculator
• AI glossary
• AI pricing index, statistics and world map
• Image provenance and metadata check
• Workflow loop instructions
• Vibe-coding tools guide
• Voice-agent tools guide
• MCP-server tools guide
• AI visibility tools guide

The API calculator estimates costs from request volume, input/output-token assumptions and published OpenRouter route prices. Estimates are not invoices or API access. The prompt checker is rule-based. Image metadata and Content Credentials do not prove authenticity or the absence of AI. Assistant and loop pages provide instructions for the reader’s chosen tools; no hosted agent execution, inference or models are supplied.

Configurable embeds are available for the calculators and selected resources. The site also offers an optional newsletter and email-confirmed price alerts. Links labelled “Advertisement*” may be advertising or affiliate links; catalogue positions are not sold.

The website source code is proprietary. Linked reusable resources retain their published terms; this listing does not relicense or reproduce them.