| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 1.9T | 66.0T | 5 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.5T | 13.0T | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.5T | 64.9T | 97 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.2T | 18.3T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.0T | 14.3T | 103 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 917.4B | 24.1T | 8 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 866.7B | 30.7T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 823.7B | 22.9T | 74 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 715.4B | 20.5T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 643.2B | 26.2T | 64 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 573.2B | 15.3T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 491.4B | 5.2T | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 468.8B | 4.3T | 7 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 428.8B | 10.6T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 363.1B | 4.3T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 352.5B | 8.9T | 31 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 335.2B | 10.0T | 64 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 333.2B | 6.2T | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 249.9B | 5.2T | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 194.1B | 6.1T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 186.5B | 5.5T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 165.3B | 5.0T | 57 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 160.7B | 2.0T | 20 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 160.3B | 6.8T | 9 | |
| No | Zero retention | Yes | — | Terms | Privacy | 160.1B | 244.9B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 156.8B | 3.5T | 19 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 150.7B | 5.1T | 13 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 148.4B | 5.3T | 27 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 148.2B | 17.9T | 23 | |
| No | Retains prompts | Yes | United States | — | Privacy | 142.7B | 3.5T | 35 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 134.9B | 7.4T | 32 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 130.0B | 5.2T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 113.8B | 3.3T | 5 | |
| No | 30 days retention | No | China | — | Privacy | 90.7B | 1.0T | 2 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 79.2B | 4.1T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 72.4B | 1.8T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 67.7B | 241.4B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 66.8B | 1.7T | 36 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 64.3B | 1.5T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 59.4B | 1.7T | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 58.6B | 2.8T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 57.6B | 799.1B | 7 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 41.5B | 2.6T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 27.9B | 814.2B | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 26.2B | 1.8T | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 23.2B | 944.9B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 22.0B | 849.0B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 21.7B | 1.0T | 6 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 21.6B | 732.7B | 5 | |
| No | Zero retention | No | — | — | — | 21.2B | 418.8B | 5 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 19.2B | 1.1T | 10 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 18.7B | 136.7B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 15.7B | 178.0B | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 14.9B | 550.2B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 14.0B | 621.0B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 12.5B | 864.7B | 18 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 12.1B | 243.2B | 7 | |
| No | Retains prompts | No | — | Terms | Privacy | 11.6B | 325.8B | 8 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 11.5B | 360.6B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 10.8B | 416.0B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 8.6B | 253.5B | 4 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 8.2B | 1.0T | 25 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.1B | 144.7B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 5.9B | 266.1B | 6 | |
| No | Zero retention | No | — | Terms | Privacy | 5.9B | 12.2B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.0B | 189.4B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.8B | 125.7B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.9B | 195.4B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.5B | 127.5B | 9 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 2.3B | 16.6B | 4 | |
| No | Retains prompts | Yes | — | Terms | — | 2.2B | 1.2T | 1 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.2B | 55.0B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 1.9B | 6.1B | 1 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 1.8B | 85.0B | 14 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.8B | 55.5B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.5B | 28.1B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 726.0M | 33.2B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 437.6M | 2.1B | 3 | |
| No | Retains prompts | No | — | — | — | 381.7M | 194.2B | 1 | |
| No | Retains prompts | Yes | United States | — | — | 134.8M | 4.2B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 118.0M | 7.0B | 7 | |
| No | Retains prompts | No | — | — | — | 8.2M | 438.5M | 15 | |
| No | 30 days retention | No | — | Terms | Privacy | 7.5M | 299.7M | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.5M | 1.2B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.5M | 203.5M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.0M | 19.6M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |