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.