Just go to: https://Duck.ai
Duck.ai (by DuckDuckGo ) lets you chat with several AI models for free. Your requests are anonymized, and chats aren’t stored on DuckDuckGo’s servers by default.
Current free models:
- GPT-5.6 Luna – best for everyday use (default)
- GPT-5.4 mini – solid, but hits limits sooner
- Claude Haiku 4.5
- Mistral Small 4
- gpt-oss-120b
- Gemma 4 31B
If you care about privacy and want quick access to good models without signing up, it’s worth trying.
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