Perplexity 是免費的 AI 驗答引擎，提供即時、可信的問題回覆，讓你快速取得答案並可繼續追問。
Perplexity 替代品
ClayHog
ClayHog 是一個 AI 搜尋能見度平台，可追蹤品牌在 ChatGPT、Gemini、Perplexity、Claude 與 Google AI Overviews 中的曝光表現，協助代理商、行銷與 SEO 團隊集中監測引用、競品、情緒與內容機會。
Grok AI Assistant
Grok 是由 xAI 開發的一款免費 AI 助理，旨在優先考慮真實性和客觀性，同時提供即時資訊存取和圖像生成等進階功能。
AakarDev AI
AakarDev AI helps teams manage AI provider access, project-level setups, logs, and analytics from one dashboard. It supports BYOK workflows and lists providers including OpenAI, Google Gemini, Anthropic, Groq, Mistral AI, and Perplexity AI.
BookAI.chat
BookAI允許您透過簡單提供書名和作者與您的書籍進行AI聊天。
Skills Janitor
Skills Janitor is a GitHub-hosted set of slash commands for auditing, tracking, and managing Claude Code and OpenAI Codex skills. It helps users find duplicates, broken links, and unused skills, then clean them up with self-contained commands.
FeelFish
FeelFish is a PC client for AI-assisted novel writing, designed to help fiction writers plan characters and settings, draft and revise long-form content, and manage story context. It includes a free tier and paid plans, with support for multiple large-model providers.