| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 1.9T | 36.6T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.7T | 36.7T | 60 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 1.1T | 7.1T | 13 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 922.3B | 10.4T | 23 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 785.2B | 19.9T | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 684.4B | 4.4T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 637.9B | 23.8T | 62 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 569.6B | 20.0T | 72 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 554.4B | 30.8T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 414.8B | 17.1T | 99 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 399.8B | 9.6T | 23 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 332.2B | 10.6T | 8 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 232.1B | 7.7T | 62 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 204.8B | 7.8T | 4 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 191.6B | 11.6T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 189.7B | 2.0T | 43 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 187.6B | 9.5T | 31 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 172.8B | 5.6T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 160.5B | 6.6T | 22 | |
| No | 30 day retention | No | United States | Terms | Privacy | 156.1B | 3.3T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 144.5B | 1.4T | 4 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 137.7B | 5.3T | 25 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 115.1B | 1.5T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 102.3B | 2.5T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 101.1B | 3.8T | 51 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 100.2B | 2.3T | 34 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 90.8B | 1.7T | 11 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 86.1B | 6.6T | 24 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 69.9B | 2.6T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 61.7B | 452.0B | 12 | |
| No | Retains prompts | Yes | United States | — | Privacy | 61.0B | 2.6T | 34 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 58.7B | 2.5T | 4 | |
| No | Retains prompts | Yes | — | — | — | 54.2B | 3.5T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 53.9B | 601.9B | 1 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 52.7B | 4.5T | 39 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 51.1B | 757.7B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 45.0B | 570.1B | 2 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 40.5B | 283.7B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 35.9B | 1.2T | 32 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 34.3B | 973.0B | 18 | |
| No | Zero retention | Yes | — | Terms | Privacy | 31.5B | 247.2B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 29.2B | 1.0T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 25.2B | 1.6T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 22.8B | 515.1B | 22 | |
| No | Zero retention | Yes | — | Terms | Privacy | 22.5B | 501.3B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 21.8B | 614.8B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 21.3B | 747.2B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 17.2B | 466.3B | 6 | |
| No | Retains prompts | No | — | — | — | 14.7B | 275.8B | 3 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 14.0B | 524.9B | 4 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 13.3B | 349.6B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 12.9B | 277.3B | 7 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 12.5B | 884.9B | 8 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 9.9B | 426.8B | 26 | |
| No | Retains prompts | No | — | Terms | Privacy | 8.8B | 150.1B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.2B | 300.7B | 7 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 7.7B | 340.3B | 13 | |
| No | Zero retention | No | — | — | — | 7.6B | 59.6B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 5.9B | 230.1B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.5B | 108.3B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.1B | 167.8B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 4.4B | 190.0B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 3.5B | 209.0B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 3.1B | 58.5B | 7 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.9B | 54.4B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.7B | 90.1B | 8 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 1.5B | 66.1B | 14 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 1.2B | 29.3B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 859.0M | 46.5B | 7 | |
| No | 30 day retention | No | China | — | Privacy | 574.6M | 101.9B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 505.2M | 47.2B | 3 | |
| No | 30 day retention | No | — | Terms | Privacy | 328.3M | 7.1B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 327.2M | 6.3B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 248.9M | 13.0B | 1 | |
| No | Retains prompts | Yes | United States | — | — | 208.7M | 945.6M | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 98.3M | 6.2B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 28.0M | 758.0M | 3 | |
| No | Retains prompts | No | — | — | — | 9.4M | 319.6M | 15 | |
| No | 30 day retention | No | — | Terms | Privacy | 6.8M | 328.4M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.3M | 329.2M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 752.9K | 10.6M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |