| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.4T | 44.5T | 96 | |
| No | Zero retention | Yes | China | Terms | Privacy | 2.4T | 48.2T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.1T | 15.8T | 23 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 958.1B | 12.3T | 9 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 845.7B | 13.8T | 13 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 775.8B | 21.8T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 655.5B | 24.9T | 65 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 645.2B | 19.1T | 72 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 506.9B | 11.9T | 22 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 427.9B | 8.7T | 62 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 411.2B | 9.8T | 32 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 356.5B | 15.1T | 103 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 288.7B | 11.6T | 3 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 272.0B | 1.6T | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 220.1B | 7.0T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 213.7B | 3.1T | 38 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 196.9B | 2.5T | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 191.5B | 7.3T | 4 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 163.1B | 5.4T | 13 | |
| No | 30 day retention | No | United States | Terms | Privacy | 158.5B | 4.7T | 9 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 157.6B | 5.3T | 26 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 155.1B | 4.2T | 57 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 151.9B | 3.2T | 34 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 140.7B | 28.3T | 2 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 110.1B | 6.1T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 103.0B | 2.2T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 98.6B | 6.6T | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 94.6B | 972.7B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 94.0B | 2.1T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 93.5B | 4.7T | 41 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 80.0B | 1.2T | 13 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 78.7B | 2.4T | 3 | |
| No | Retains prompts | Yes | United States | — | Privacy | 78.6B | 2.8T | 35 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 64.5B | 1.3T | 5 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 59.6B | 2.8T | 13 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 51.0B | 562.0B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 49.0B | 1.3T | 33 | |
| No | Zero retention | Yes | — | Terms | Privacy | 44.2B | 3.0T | 19 | |
| No | Retains prompts | Yes | — | Terms | — | 43.0B | 2.8T | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 31.5B | 406.9B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 28.1B | 730.7B | 20 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 28.1B | 574.4B | 12 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 26.6B | 736.7B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 26.4B | 718.5B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 22.9B | 1.5T | 4 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 21.4B | 979.5B | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 20.8B | 527.2B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 20.5B | 784.9B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 20.1B | 355.8B | 7 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 19.6B | 508.5B | 21 | |
| No | Retains prompts | No | — | Terms | Privacy | 16.3B | 194.1B | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 15.7B | 604.1B | 6 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 14.7B | 621.7B | 5 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 12.0B | 746.5B | 8 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 11.7B | 339.1B | 10 | |
| No | Zero retention | No | — | — | — | 8.9B | 127.8B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.3B | 183.8B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.8B | 52.8B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 5.4B | 234.6B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.2B | 247.4B | 3 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 3.4B | 78.1B | 14 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.4B | 99.2B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.3B | 198.2B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.0B | 118.2B | 5 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 2.7B | 75.4B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 2.4B | 172.4B | 2 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.9B | 55.0B | 4 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 1.6B | 39.9B | 2 | |
| No | 30 day retention | No | China | — | Privacy | 1.3B | 101.6B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.2B | 41.7B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 813.5M | 38.6B | 7 | |
| No | Retains prompts | No | — | — | — | 372.5M | 282.7B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 211.2M | 7.4B | 6 | |
| No | Retains prompts | Yes | United States | — | — | 122.6M | 1.5B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 41.3M | 5.7B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 33.5M | 889.7M | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 23.5M | 5.5B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 9.3M | 321.4M | 4 | |
| No | Retains prompts | No | — | — | — | 8.8M | 339.3M | 15 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.2M | 329.5M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 726.5K | 14.2M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |