| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 5.5T | 15.1T | 14 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 2.0T | 29.4T | 2 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.8T | 44.3T | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.8T | 57.9T | 109 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.7T | 16.0T | 8 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.3T | 32.2T | 12 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 1.2T | 18.2T | 12 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.1T | 47.1T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 41.4T | 24 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.1T | 28.0T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 887.6B | 25.2T | 108 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 869.2B | 24.5T | 62 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 850.9B | 13.7T | 10 | |
| No | Zero retention | Yes | — | Terms | Privacy | 719.4B | 14.4T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 529.0B | 9.6T | 16 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 515.8B | 10.2T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 478.0B | 10.1T | 39 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 416.0B | 11.6T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 408.0B | 6.3T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 400.4B | 18.5T | 48 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 399.6B | 11.7T | 69 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 350.5B | 10.1T | 44 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 336.7B | 6.5T | 30 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 303.4B | 5.4T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 286.6B | 3.6T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 285.7B | 5.8T | 8 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 269.4B | 5.0T | 43 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 262.0B | 7.1T | 8 | |
| No | Retains prompts | Yes | — | Terms | — | 234.7B | 21.3T | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 220.5B | 6.8T | 5 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 212.9B | 9.6T | 18 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 212.2B | 6.3T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 189.2B | 9.9T | 22 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 185.6B | 6.4T | 27 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 171.8B | 11.2T | 41 | |
| No | Retains prompts | Yes | United States | — | Privacy | 148.4B | 6.2T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 137.7B | 2.2T | 9 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 134.1B | 4.8T | 4 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 131.0B | 3.1T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 106.8B | 1.9T | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 103.0B | 2.2T | 37 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 91.8B | 5.5T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 82.6B | 2.7T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 80.9B | 895.0B | 22 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 68.3B | 2.2T | 33 | |
| No | Zero retention | Yes | — | Terms | Privacy | 60.7B | 1.4T | 10 | |
| No | Zero retention | No | United States | Terms | Privacy | 58.5B | 706.7B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 56.3B | 1.3T | 6 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 56.0B | 1.7T | 2 | |
| No | Zero retention | No | — | — | — | 55.0B | 1.5T | 8 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 46.9B | 1.7T | 10 | |
| No | Zero retention | Yes | — | Terms | Privacy | 45.6B | 399.1B | 5 | |
| No | Zero retention | No | — | Terms | Privacy | 45.2B | 506.3B | 3 | |
| No | Zero retention | Yes | — | — | — | 39.3B | 591.1B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 35.6B | 464.6B | 9 | |
| No | Zero retention | No | United States | Terms | Privacy | 29.7B | 682.9B | 4 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 28.5B | 617.9B | 14 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 28.2B | 889.2B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 27.3B | 709.1B | 8 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 26.4B | 644.8B | 9 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 24.9B | 880.4B | 3 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 22.0B | 570.6B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 20.8B | 2.5T | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 16.8B | 489.1B | 7 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 15.6B | 761.4B | 6 | |
| No | Retains prompts | No | — | Terms | Privacy | 15.3B | 423.0B | 9 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 14.7B | 175.2B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 11.6B | 347.7B | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 9.6B | 191.7B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.9B | 169.5B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 2.7B | 47.5B | 1 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.5B | 80.6B | 16 | |
| No | Retains prompts | No | — | Terms | Privacy | 2.5B | 73.3B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.7B | 16.6B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4B | 35.1B | 6 | |
| No | Retains prompts | No | United States | Terms | Privacy | 1.3B | 1.3B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.2B | 76.8B | 9 | |
| No | 30 days retention | No | — | Terms | Privacy | 991.1M | 20.9B | 2 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 863.9M | 31.5B | 6 | |
| No | 30 days retention | No | China | — | Privacy | 675.3M | 263.9B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 255.1M | 23.2B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 230.3M | 6.2B | 9 | |
| No | Retains prompts | Yes | United States | — | — | 173.5M | 4.8B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 61.9M | 9.2B | 2 | |
| No | Retains prompts | No | — | — | — | 60.6M | 2.0B | 16 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 43.9M | 16.1B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 24.0M | 368.6M | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 13.4M | 22.8B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 10.1M | 126.5M | 7 | |
| No | 30 days retention | No | — | Terms | Privacy | 8.5M | 312.4M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.9M | 96.6M | 11 | |
| No | Retains prompts | No | United States | Terms | Privacy | 351.6K | 2.0M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 150.8K | 10.8M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |