DuckDuckGo

source

closed

self-host

none

license

proprietary(SaaS app + browser integration)

A proprietary anonymizing proxy in front of closed model APIs: no source, no self-hosting. The closed privacy-chat surface in this category.

• https://duckduckgo.com/duckduckgo-help-pages/duckai/ai-chat-privacy recorded 2026-08-13

  DuckDuckGo's proprietary Duck.ai privacy/help documentation

Backed by DuckDuckGo's large user base and built into its browser, but no Duck.ai-specific usage figures are published. The level is a conservative reading of that reported reach until an active-user count is disclosed.

• https://spreadprivacy.com/ai-chat/ recorded 2026-08-13

  DuckDuckGo's launch of free, anonymous AI Chat across web + browser

Anonymizing multi-model chat proxy, strong on privacy and model choice but with a deliberately minimal surface: no RAG, plugins, agents or multimodal generation. That keeps it lower-tier among chat UIs, though paid tiers reach Claude Sonnet 4.6, Mistral Small 4 and, at the top, Claude Opus 4.8 with higher reasoning effort.

• https://duckduckgo.com/duckduckgo-help-pages/duckai/chat-models recorded 2026-08-13

  available models (Claude 4.5 Haiku, Llama 3.3 70B, Mistral Small 3, GPT-4o mini; subscriber models)