nexie vs. ChatGPT,
Gemini, Claude,
and Perplexity
A transparent look at how nexie compares to the major AI tools on privacy, data ownership, and personal context. These are not the same products, and the differences matter.
How they handle your data
| Feature | nexie | ChatGPT | Gemini | Claude | Perplexity |
|---|---|---|---|---|---|
| Your identity sent to AI model provider | Never | Yes | Yes | Yes | Yes |
| Conversations stored on provider servers | No, in your control | Yes, by default | Yes | Yes, by default | Yes |
| Data used to train AI models | Never without consent | Opt-out available | Opt-out available | Opt-out available | Opt-out available |
| Human review of conversations | No | Yes (safety review) | Yes (safety review) | Yes (safety review) | Yes |
| Full data export | Yes | Partial | Partial | Partial | Partial |
| Permanent deletion | Yes | Interface only | Interface only | Interface only | Interface only |
How they work for you
| Feature | nexie | ChatGPT | Gemini | Claude | Perplexity |
|---|---|---|---|---|---|
| Access to multiple AI models | Yes, from one interface | GPT models only | Gemini models only | Claude models only | Limited |
| Personal Context Engine | Yes, private, portable | Memory (on their servers) | Personalization (on their servers) | No persistent memory | No |
| Context travels across AI services | Yes | No | No | No | No |
| Works for sensitive use cases | Yes, by design | With caution | With caution | With caution | With caution |
| Monthly cost | $20 / month | Free + $20/mo (Plus) | Free + $19.99/mo | Free + $20/mo (Pro) | Free + $20/mo (Pro) |
This comparison reflects publicly available information as of June 2026. "Opt-out available" means the platform offers a setting to limit data use for training, but logging and other data practices may still apply. "Interface only" for deletion means the conversation is removed from the user-facing interface; backend data retention policies vary. nexie's privacy properties are architectural by design, not toggle-based.
ChatGPT, Gemini, Claude, and Perplexity are powerful tools. nexie is not trying to replace them, it routes through the best of them. The difference is that nexie is built so you never have to trade your identity and personal data to use them.