Recommended Private AI

Every prompt you send to a mainstream cloud chatbot can be logged, tied to your account, and fed back into training the next model. Private AI flips that: either the model runs locally on your own device so nothing leaves it or it is hosted by a company that encrypts your history and contractually refuses to train on you. The trade-off is real, though. Local models are less capable than frontier cloud systems and need decent hardware, while privacy-first hosted assistants ask you to trust a policy instead of your own machine.

How to choose a private AI tool

Start by deciding between local and hosted. Running a model yourself, with a tool like Ollama or llamafile, is the strongest form of privacy because your prompts never touch a network but it leans on your hardware: several gigabytes of RAM and ideally a modern GPU for anything beyond small models. If that is too much, a privacy-first hosted assistant like Lumo, Duck.ai, or Euria keeps things easy while limiting or encrypting what the provider retains, at the cost of trusting a policy rather than math. Favour tools with open weights and open-source code so the privacy claims can be independently checked and match the model size to what your device or budget can actually handle.

Here are some things to look for.

Runs locally or offline. On-device processing means your prompts never leave your machine so there is nothing to log or leak.
Open source and open weights. Published code and models let others verify the privacy claims instead of taking them on faith.
No training on your data. The provider should state plainly that your conversations are never used to train its models.
No-logs or ephemeral history. The less a hosted service stores, the less can be breached, subpoenaed, or sold.
Reasonable hardware needs. Local models must fit your RAM and GPU so check the requirements before committing to a large one.
Clear jurisdiction and funding. Knowing who runs the service, where, and how they make money tells you how durable the privacy promise is.