| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 2.7T | 63.8T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.6T | 64.0T | 97 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.1T | 16.6T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 22.2T | 74 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 992.0B | 31.4T | 2 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 831.8B | 24.1T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 811.4B | 26.4T | 64 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 797.4B | 8.1T | 31 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 581.3B | 11.4T | 2 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 564.7B | 14.9T | 23 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 501.4B | 19.6T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 494.9B | 13.4T | 103 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 489.1B | 18.0T | 23 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 459.1B | 9.9T | 64 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 379.5B | 5.6T | 7 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 275.9B | 5.2T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 264.9B | 3.7T | 6 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 251.8B | 7.0T | 9 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 235.3B | 10.7T | 10 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 222.1B | 4.9T | 2 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 213.4B | 5.3T | 27 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 206.9B | 5.0T | 57 | |
| No | Retains prompts | Yes | United States | — | Privacy | 195.3B | 3.5T | 35 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 192.6B | 5.3T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 190.6B | 3.3T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 189.6B | 3.2T | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 188.8B | 6.3T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 186.7B | 7.5T | 32 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 180.2B | 5.2T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 153.3B | 1.6T | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 136.5B | 5.1T | 17 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 135.9B | 4.3T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 114.3B | 3.2T | 5 | |
| No | 30 days retention | No | China | — | Privacy | 100.9B | 839.9B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 82.0B | 2.9T | 16 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 81.6B | 988.1B | 25 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 77.7B | 2.7T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 74.3B | 1.7T | 5 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 70.8B | 1.4T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 68.7B | 1.6T | 36 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 61.9B | 1.7T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 55.3B | 718.9B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 49.0B | 104.1B | 5 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 44.2B | 1.9T | 3 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 38.1B | 1.0T | 10 | |
| No | Zero retention | Yes | — | Terms | Privacy | 34.9B | 976.7B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 31.7B | 918.4B | 7 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 30.7B | 736.5B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 27.0B | 855.7B | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 24.8B | 897.2B | 18 | |
| No | Zero retention | No | — | — | — | 24.7B | 374.8B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 20.5B | 905.0B | 4 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 19.8B | 95.9B | 7 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 19.7B | 579.6B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 18.1B | 428.6B | 5 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 15.6B | 220.3B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 14.2B | 634.4B | 6 | |
| No | Retains prompts | No | — | Terms | Privacy | 13.7B | 309.1B | 7 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 12.6B | 356.5B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 10.3B | 158.9B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 8.6B | 259.1B | 4 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 8.5B | 270.1B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 7.0B | 131.5B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.2B | 193.7B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.1B | 128.6B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.5B | 125.7B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.2B | 196.3B | 7 | |
| No | Zero retention | No | — | Terms | Privacy | 3.0B | 3.5B | 1 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.1B | 53.8B | 2 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.7B | 55.6B | 4 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 1.6B | 84.8B | 14 | |
| No | Retains prompts | Yes | — | Terms | — | 1.4B | 1.3T | 1 | |
| No | Retains prompts | No | — | — | — | 1.3B | 212.1B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.1B | 27.8B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1B | 33.0B | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 540.0M | 10.3B | 4 | |
| No | Retains prompts | Yes | United States | — | — | 321.2M | 4.0B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 181.8M | 7.3B | 7 | |
| No | 30 days retention | No | — | Terms | Privacy | 122.5M | 122.5M | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 35.8M | 1.7B | 3 | |
| No | Retains prompts | No | — | — | — | 22.2M | 413.3M | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 20.2M | 1.4B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 14.9M | 293.5M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.7M | 2.7M | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.6M | 212.9M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 537.9K | 18.6M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |