Perplexity AI is an AI search engine that uses large language models and search engines. It is a demo inspired by openai webgpt, not a commercial product. It also answers Twitter graph queries by translating natural language to SQL code.

Topyc is an AI-powered tool that generates well-researched, SEO-optimized content in minutes, customized to your project, with features like control over word length, tone, and citation type, real-time research, automatic internal and external linking, and privacy assurance.