| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | United States | Terms | Privacy | 1.6T | 22.8T | 62 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 1.6T | 29.8T | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.3T | 31.5T | 97 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.0T | 32.8T | 4 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 978.0B | 17.9T | 8 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 875.6B | 12.1T | 3 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 575.2B | 2.4T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 571.2B | 21.2T | 68 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 538.4B | 7.9T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 527.7B | 16.0T | 98 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 397.1B | 4.7T | 38 | |
| No | Zero retention | Yes | — | Terms | Privacy | 367.7B | 2.2T | 3 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 333.9B | 9.2T | 25 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 259.4B | 7.7T | 61 | |
| No | 30 day retention | No | United States | Terms | Privacy | 259.3B | 2.5T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 251.9B | 9.9T | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 226.7B | 6.2T | 21 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 221.2B | 7.6T | 4 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 193.1B | 5.3T | 25 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 192.7B | 10.0T | 9 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 180.8B | 5.9T | 12 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 175.5B | 7.5T | 24 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 163.8B | 1.9T | 26 | |
| No | Retains prompts | Yes | United States | — | Privacy | 144.9B | 2.9T | 33 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 136.6B | 3.8T | 51 | |
| No | Zero retention | Yes | — | Terms | Privacy | 130.7B | 2.2T | 17 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 100.4B | 2.6T | 12 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 82.9B | 1.1T | 2 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 74.3B | 3.0T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 73.3B | 1.8T | 44 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 69.6B | 415.2B | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 65.4B | 363.9B | 1 | |
| No | Retains prompts | Yes | — | — | — | 64.2B | 4.4T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 55.6B | 1.0T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 54.0B | 1.2T | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 50.3B | 1.7T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 49.4B | 898.2B | 1 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 43.3B | 576.0B | 4 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 37.6B | 392.7B | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 31.4B | 739.3B | 10 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 31.4B | 105.6B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 31.1B | 945.0B | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 29.0B | 435.8B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 26.1B | 443.9B | 5 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 22.3B | 526.4B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 18.7B | 145.7B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 17.0B | 1.6T | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 16.8B | 634.0B | 5 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 15.8B | 1.0T | 8 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 13.5B | 371.6B | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 12.0B | 351.6B | 11 | |
| No | Zero retention | No | — | — | — | 11.9B | 13.4B | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 11.3B | 231.3B | 3 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 11.1B | 335.3B | 7 | |
| No | Retains prompts | No | — | Terms | Privacy | 10.5B | 124.1B | 4 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 9.6B | 173.7B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.6B | 270.4B | 7 | |
| No | Retains prompts | No | — | — | — | 6.9B | 247.6B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.6B | 493.9B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.3B | 166.5B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.9B | 478.2B | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.6B | 85.0B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 3.9B | 235.2B | 1 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 3.8B | 60.9B | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.5B | 107.8B | 5 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 2.0B | 47.7B | 7 | |
| No | 30 day retention | No | China | — | Privacy | 1.9B | 107.6B | 2 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.7B | 54.1B | 4 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 1.4B | 23.2B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.2B | 55.1B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 709.3M | 50.8B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 462.0M | 14.2B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 240.9M | 7.0B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 143.1M | 6.9B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 29.2M | 667.8M | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 26.4M | 221.6M | 5 | |
| No | Retains prompts | No | — | — | — | 21.8M | 315.9M | 15 | |
| No | 30 day retention | No | — | Terms | Privacy | 9.9M | 340.9M | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.1M | 6.2B | 1 | |
| No | Retains prompts | Yes | United States | — | — | 8.0M | 665.2M | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 692.3K | 8.3M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |