There are many AI companies appearing with their own AI models and services. Amongst them are a few who do respect peoples privacy and here I list some of them who are a viable for free.

Privacy Oriented:

Here are AI Services where the main focus is providing Privacy. And not use costumer inputs for model learning.

Ensu FREE

An offline lightweight AI model provided by Ente Techologies inc. A company providing opensource software that are privacy focused.
Agora FREE

Opensource light AI-chat client for android devices.
LeoAI Brave.com Freemium

webbrowser based lightweight AI model with Brave Search Function. There is still a privacy policy to read.
duck.ai Freemium

Privacy Focused. (There is still a privacy policy to read)
huggingChat Freemium

Privacy-friendly AI chatbot of HuggingFace. (There is still a privacy policy to read.)

GDPR Compliant:

Here are European AI services who are protected by the European GeneralDataProtectionLaw that disallows to moneytise on peoples data and selling it to thirdparties.

Lumo.ai Privacy Oriented - Freemium

Providing privacy is the core business of Proton.me . The claims are very promising, (There is still a privacy policy to read.)
xprivo.com Privacy Oriented - Freemium

A German Hosted AI Chatbot. With an Opensource client. Multiple models a viable. No logging, no storing policy. But some ot the network traffic still passes some inner and outer EU countries including Microsoft Ireland, Amazon AWS and Google Cloud depending on what AI model being used. So there is still a transparent easy to read privacy policy.
Euria Privacy Oriented - Freemium

Euria, provided by Infomaniak, a Swiss data center. Similar to Proton.me, Infomaniak established a foundation to safeguard the company's ethical and privacy-first principles, even in the event of a sale. The name 'Euria' reflects a commitment to European sovereignty. However, there is still a privacy policy to read.
Mistral.ai Freemium

Mistral AI is a French artificial intelligence company that emerged early in the current AI boom. It has developed large-scale models that rank among the most influential players in the field. Because of its location in France, Mistral AI’s services are subject to GDPR. However, privacy is NOT positioned as a core principle in its business model. As of my own experience the chat-logs are stored locally. So please mind the Privacy Policy.

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