HotBot and Perplexity are both AI assistants you talk to in a chat box, but they are built for different jobs: HotBot is a multi-model chat platform that lets you switch between 644 AI models under one roof, while Perplexity is an AI answer engine that searches the web and cites its sources. Here is a factual side-by-side of what each does, what each costs, and where each runs. For practical workflows, see our guide How to Get More from Multi-Model AI Chat Platforms.
| HotBot | Perplexity | |
|---|---|---|
| Official site | hotbot.com | perplexity.ai |
| Company | Hotbot Services LLC | Perplexity AI |
| What it does | Multi-model AI chat — 644 AI models under one interface, switch anytime, file uploads, voice input | AI answer engine that searches the web and delivers direct answers with inline citations from trusted sources |
| Official pricing | $19.95/month; $39.95 per 3 months — full model catalog, model switching | Pro $20/month; Max $200/month (official pricing page, verified 2026-10-01) |
| Free plan | Free tier with daily limits (per official FAQ) | Free plan with limited daily usage (per official pricing page) |
| Platforms | Web | Web, macOS, Windows, iOS, Android |
| Key features | 644-model catalog, model switching, file upload, voice input | Inline citations from trusted sources; multiple AI models orchestrated per task; Pro Search and deep research; file uploads; projects and artifacts; Perplexity Computer; desktop and mobile apps |
| Approach | Aggregator — one subscription, many models | Answer engine — search-grounded answers with cited sources |
Situations each fits
- HotBot is built around model choice — subscribers pick from 644 models and switch in one interface, with file uploads and voice input; its free tier carries daily limits.
- Perplexity is built around answered research — it searches the web and returns answers with cited sources.
- HotBot’s official pricing is $19.95/month or $39.95 per 3 months; Perplexity’s official pricing is Pro $20/month or Max $200/month (verified 2026-10-01).