Other Assistants
Answer engines, hubs, and specialty chats beyond core provider models.
Grouped by country of origin. Answer engines, multi-model hubs, and specialty assistants live here. First-party lab chats (ChatGPT, Claude, Gemini, Lumo, etc.) are on AI Chats → Provider Chats.
United States
Perplexity
AI answer engine with cited search
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NotebookLM
Google’s AI notebook
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Character.AI
10M+ characters
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Copilot
Microsoft
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Duck.ai
Private AI chat by DuckDuckGo; free, no tracking; third-party models
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OpenRouter
Unified API & chat for 400+ models across 60+ providers; not a model lab
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Poe
Multi-model hub
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T3 Chat
Fast multi-model chat platform; by theo gg
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