Add AI Models Catalog to NLP section

[i-need-token]

Description

Adds the AI Models Catalog to the Natural Language Processing section — a structured, open-source database of 4,587+ AI models across 95 providers with pricing, context windows, modalities, and capabilities.

Why This Is Useful for Python Data Scientists

• Model comparison: Compare pricing, context windows, and capabilities across 95 providers
• Interactive catalog: https://i-need-token.github.io/ai-models/
• npm package + JSON/CSV downloads: Programmatic access to model data
• First-party data: All data sourced from provider APIs, not aggregators
• Machine-readable YAML: TypeScript types + Zod validation

Links

• GitHub: https://github.com/i-need-token/ai-models
• Interactive Catalog: https://i-need-token.github.io/ai-models/
• LLM Pricing Comparison: https://i-need-token.github.io/ai-models/llm-pricing.html

Checklist

• The entry follows the existing format of the list
• The entry is relevant to Python data scientists working with LLMs
• The description is concise and follows the style of other entries