| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.7T | 59.5T | 109 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.7T | 25.4T | 3 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.7T | 48.7T | 6 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.6T | 45.4T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 38.9T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 13.8T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 23.8T | 67 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 791.5B | 14.8T | 12 | |
| No | Zero retention | Yes | — | Terms | Privacy | 735.8B | 29.5T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 659.6B | 10.8T | 41 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 639.4B | 7.0T | 16 | |
| No | Zero retention | Yes | — | Terms | Privacy | 576.1B | 12.2T | 2 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 571.7B | 31.2T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 570.1B | 25.7T | 107 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 501.2B | 10.9T | 8 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 445.8B | 9.0T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 408.7B | 12.5T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 407.1B | 8.7T | 38 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 355.7B | 21.5T | 52 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 337.2B | 10.5T | 43 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 327.7B | 4.6T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 297.4B | 11.3T | 69 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 256.3B | 4.3T | 42 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 253.7B | 11.5T | 19 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 249.0B | 6.2T | 31 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 247.6B | 6.9T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 234.5B | 7.0T | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 232.2B | 6.8T | 26 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 228.0B | 6.3T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 222.4B | 2.7T | 10 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 184.3B | 7.8T | 14 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 183.2B | 4.8T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 176.8B | 10.5T | 8 | |
| No | Retains prompts | Yes | — | Terms | — | 175.9B | 20.5T | 2 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 173.3B | 4.9T | 11 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 158.3B | 5.0T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 145.7B | 5.3T | 8 | |
| No | Retains prompts | Yes | United States | — | Privacy | 145.5B | 6.3T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 144.7B | 2.7T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 132.9B | 1.5T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 110.0B | 2.4T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 81.0B | 2.2T | 39 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 79.8B | 2.1T | 30 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 77.4B | 3.0T | 15 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 72.8B | 1.5T | 10 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 58.0B | 1.7T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 55.2B | 1.1T | 9 | |
| No | Zero retention | Yes | — | — | — | 53.5B | 398.3B | 6 | |
| No | Zero retention | No | — | — | — | 48.0B | 1.4T | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 44.1B | 1.2T | 7 | |
| No | Zero retention | No | — | Terms | Privacy | 41.4B | 300.6B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 40.7B | 2.3T | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 39.8B | 592.7B | 22 | |
| No | Zero retention | No | United States | Terms | Privacy | 38.1B | 542.3B | 3 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 32.3B | 548.7B | 14 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 31.6B | 830.1B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 27.8B | 479.0B | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 25.6B | 590.2B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 23.4B | 734.8B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 22.9B | 259.7B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 22.2B | 357.2B | 9 | |
| No | Zero retention | No | United States | Terms | Privacy | 20.9B | 616.3B | 4 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 16.2B | 573.0B | 10 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 15.6B | 808.7B | 8 | |
| No | Retains prompts | No | — | Terms | Privacy | 15.0B | 414.6B | 9 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 14.2B | 121.8B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 14.1B | 303.8B | 6 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 12.4B | 963.0B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 10.4B | 186.1B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.6B | 162.8B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 4.7B | 76.0B | 16 | |
| No | Retains prompts | No | — | Terms | Privacy | 3.1B | 44.1B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 3.1B | 31.8B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.7B | 88.1B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.6B | 33.0B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.2B | 5.8B | 3 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 921.3M | 35.9B | 6 | |
| No | 30 days retention | No | China | — | Privacy | 567.3M | 782.8B | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 551.3M | 20.6B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 533.6M | 27.5B | 4 | |
| No | Retains prompts | Yes | United States | — | — | 304.1M | 5.1B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 238.5M | 25.4B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 220.9M | 5.9B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 126.7M | 9.0B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 100.7M | 100.7M | 1 | |
| No | Retains prompts | No | — | — | — | 72.7M | 1.8B | 16 | |
| No | Zero retention | No | United States | Terms | Privacy | 24.7M | 23.2B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 11.7M | 327.3M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 9.5M | 53.4M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.0M | 103.2M | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 87.0K | 13.7M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 54.9K | 218.2K | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |