| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 3.2T | 59.0T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.2T | 35.8T | 99 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.2T | 63.5T | 64 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.6T | 39.8T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.5T | 34.1T | 11 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.3T | 49.9T | 2 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.2T | 31.9T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.2T | 32.1T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 975.3B | 24.4T | 48 | |
| No | Retains prompts | Yes | — | Terms | — | 929.7B | 32.0T | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 892.4B | 25.8T | 13 | |
| No | Zero retention | Yes | — | Terms | Privacy | 821.2B | 19.5T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 727.9B | 23.9T | 12 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 702.3B | 11.0T | 43 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 701.2B | 15.0T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 674.0B | 12.2T | 11 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 673.5B | 24.3T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 671.1B | 20.4T | 17 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 671.0B | 14.9T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 605.8B | 14.9T | 45 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 546.6B | 13.7T | 9 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 541.3B | 28.3T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 508.6B | 8.5T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 482.0B | 14.3T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 441.0B | 11.4T | 73 | |
| No | Zero retention | Yes | — | Terms | Privacy | 403.2B | 3.5T | 26 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 367.1B | 4.9T | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 349.9B | 11.0T | 3 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 343.2B | 8.8T | 33 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 343.0B | 9.6T | 35 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 246.4B | 5.5T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 245.7B | 4.0T | 9 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 244.3B | 7.3T | 20 | |
| No | Zero retention | No | United States | Terms | Privacy | 239.6B | 2.3T | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 234.0B | 7.6T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 186.0B | 6.1T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 175.4B | 7.6T | 16 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 155.4B | 2.5T | 14 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 137.2B | 6.9T | 4 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 135.6B | 1.8T | 1 | |
| No | Retains prompts | Yes | United States | — | Privacy | 131.8B | 4.5T | 29 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 116.2B | 5.9T | 27 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 111.1B | 2.6T | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 108.4B | 2.3T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 106.3B | 2.6T | 20 | |
| No | Zero retention | No | — | — | — | 102.2B | 2.3T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 101.1B | 1.4T | 9 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 89.8B | 6.9T | 14 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 84.8B | 4.8T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 79.1B | 2.5T | 37 | |
| No | Zero retention | Yes | France | Terms | Privacy | 71.7B | 1.8T | 29 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 66.0B | 1.4T | 17 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 47.1B | 1.1T | 6 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 40.0B | 742.3B | 10 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 29.7B | 694.1B | 9 | |
| No | Zero retention | Yes | — | Terms | Privacy | 29.6B | 2.0T | 9 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 29.2B | 1.2T | 5 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 26.7B | 675.8B | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 23.3B | 396.9B | 1 | |
| No | Zero retention | No | — | Terms | Privacy | 22.8B | 1.1T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 21.9B | 578.1B | 8 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 21.6B | 502.4B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.8B | 3.3T | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 16.6B | 507.5B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 15.5B | 234.6B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 15.0B | 108.1B | 3 | |
| No | Retains prompts | No | — | Terms | Privacy | 8.9B | 361.5B | 12 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 8.4B | 245.5B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.2B | 376.2B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.2B | 192.5B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.2B | 81.2B | 3 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 4.1B | 100.9B | 16 | |
| No | Retains prompts | No | United States | Terms | Privacy | 4.1B | 15.5B | 1 | |
| No | Retains prompts | No | — | Terms | Privacy | 3.8B | 213.9B | 3 | |
| No | 30 days retention | No | China | — | Privacy | 3.7B | 43.7B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.7B | 17.2B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.4B | 37.8B | 10 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.2B | 29.6B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1B | 37.2B | 5 | |
| No | Retains prompts | No | — | — | — | 639.2M | 10.3B | 2 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 626.9M | 3.8B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 550.8M | 41.0B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 454.1M | 6.0B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 307.8M | 8.8B | 9 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 198.9M | 11.2B | 4 | |
| No | Retains prompts | No | — | — | — | 132.6M | 3.7B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 111.2M | 2.2B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 19.9M | 1.4B | 4 | |
| No | Retains prompts | Yes | South Korea | Terms | Privacy | 16.0M | 16.0M | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 14.5M | 282.0M | 7 | |
| No | 30 days retention | No | — | Terms | Privacy | 10.5M | 324.5M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.8M | 235.6M | 11 | |
| No | Retains prompts | No | United States | Terms | Privacy | 5.3M | 67.4M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 282.6K | 4.5M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 79.8K | 510.0K | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |