| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 1.5T | 20.2T | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.4T | 20.5T | 97 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 884.5B | 33.3T | 69 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 785.2B | 17.2T | 59 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 653.1B | 11.6T | 93 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 584.5B | 11.9T | 4 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 536.8B | 33.7T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 529.3B | 11.6T | 30 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 429.7B | 12.6T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 359.0B | 3.5T | 20 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 345.1B | 5.8T | 14 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 293.0B | 9.3T | 24 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 261.8B | 7.7T | 23 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 261.3B | 5.4T | 4 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 243.8B | 7.0T | 55 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 219.4B | 4.5T | 24 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 186.5B | 7.8T | 12 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 165.4B | 3.6T | 36 | |
| No | Retains prompts | Yes | — | — | — | 130.7B | 5.9T | 1 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 118.4B | 6.4T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 113.7B | 3.2T | 50 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 111.9B | 4.0T | 4 | |
| No | Retains prompts | Yes | United States | — | Privacy | 109.3B | 3.2T | 33 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 90.8B | 2.2T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 85.4B | 1.2T | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 79.6B | 1.7T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 74.8B | 785.1B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 73.2B | 1.0T | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 56.0B | 1.6T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 51.8B | 147.2B | 5 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 50.6B | 69.3B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 46.2B | 866.3B | 31 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 34.5B | 761.3B | 15 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 32.2B | 1.1T | 11 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 31.9B | 943.4B | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 28.3B | 645.7B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 25.3B | 647.4B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 25.2B | 185.5B | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 24.0B | 335.8B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 21.9B | 484.3B | 8 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 20.0B | 428.2B | 5 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 17.5B | 442.4B | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.8B | 126.3B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.5B | 223.8B | 8 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 13.8B | 250.4B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 11.2B | 340.9B | 6 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 9.8B | 322.7B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.3B | 167.1B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 7.8B | 205.9B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 7.7B | 193.0B | 6 | |
| No | Retains prompts | No | — | — | — | 7.0B | 260.6B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 6.6B | 212.1B | 1 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 6.2B | 374.6B | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.1B | 163.9B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.7B | 135.2B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.4B | 105.8B | 4 | |
| No | 30 day retention | No | China | — | Privacy | 3.6B | 62.8B | 2 | |
| No | Retains prompts | No | — | Terms | Privacy | 3.3B | 99.7B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.0B | 66.9B | 8 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.7B | 49.8B | 13 | |
| No | Zero retention | No | United States | Terms | Privacy | 2.6B | 44.8B | 3 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.0B | 2.1B | 1 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.9B | 51.6B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.8B | 604.3B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3B | 81.0B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 998.6M | 10.6B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 694.5M | 1.5B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 561.3M | 19.0B | 1 | |
| No | 30 day retention | No | United States | Terms | Privacy | 528.9M | 9.3B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 390.6M | 6.0B | 5 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 325.6M | 8.8B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 73.4M | 9.7B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 25.3M | 98.6M | 5 | |
| No | Zero retention | No | United States | Terms | Privacy | 20.8M | 344.7M | 3 | |
| No | Retains prompts | No | — | — | — | 16.7M | 265.8M | 11 | |
| No | 30 day retention | No | — | Terms | Privacy | 15.0M | 366.4M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 11.9M | 242.0M | 2 | |
| No | Retains prompts | Yes | United States | — | — | 5.3M | 1.7B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 55.3K | 1.8M | 3 | |
| No | Retains prompts | Yes | Israel | Terms | Privacy | 0 | 418.5M | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |