| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| Yes | Retains prompts | No | — | Terms | — | 4.3T | 19.2T | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.7T | 72.5T | 105 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.7T | 29.2T | 5 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.6T | 71.7T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.6T | 18.1T | 18 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.1T | 23.7T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 977.3B | 17.3T | 112 | |
| No | Zero retention | Yes | — | Terms | Privacy | 820.2B | 24.4T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 744.1B | 24.1T | 63 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 609.6B | 25.8T | 72 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 564.3B | 7.5T | 39 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 555.2B | 14.7T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 468.0B | 8.1T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 448.1B | 6.5T | 63 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 432.8B | 15.4T | 22 | |
| No | Zero retention | Yes | — | Terms | Privacy | 394.0B | 3.4T | 1 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 367.9B | 7.2T | 11 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 363.9B | 10.8T | 67 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 279.0B | 6.2T | 27 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 258.5B | 8.7T | 7 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 238.8B | 17.8T | 14 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 213.2B | 15.3T | 24 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 209.3B | 5.6T | 30 | |
| No | Retains prompts | Yes | United States | — | Privacy | 203.5B | 4.2T | 34 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 202.9B | 9.6T | 19 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 188.1B | 6.6T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 186.4B | 2.8T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 180.2B | 7.1T | 36 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 169.9B | 4.6T | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 163.6B | 5.7T | 4 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 147.0B | 5.0T | 13 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 117.9B | 8.8T | 11 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 114.6B | 3.8T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 104.1B | 1.0T | 6 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 96.6B | 1.0T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 96.1B | 3.5T | 5 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 84.3B | 2.6T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 68.5B | 1.1T | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 62.4B | 2.4T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 59.5B | 1.9T | 37 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 54.1B | 619.4B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 50.4B | 698.6B | 4 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 48.0B | 1.8T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 44.0B | 2.2T | 8 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 40.9B | 1.3T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 40.7B | 6.4T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 39.0B | 2.6T | 20 | |
| No | Zero retention | No | — | — | — | 35.4B | 631.0B | 5 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 32.1B | 807.1B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 30.1B | 1.1T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 23.6B | 838.7B | 8 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 22.4B | 1.6T | 3 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 20.8B | 439.9B | 10 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 19.9B | 991.4B | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 19.0B | 734.7B | 18 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 16.2B | 344.0B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 15.0B | 584.1B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.0B | 174.2B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 14.9B | 439.8B | 6 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 14.7B | 299.2B | 8 | |
| No | Zero retention | Yes | — | — | — | 13.6B | 45.3B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 12.4B | 280.0B | 3 | |
| No | Retains prompts | No | — | Terms | Privacy | 12.1B | 371.3B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 11.1B | 259.0B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.3B | 181.8B | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 4.8B | 236.6B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.4B | 201.9B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.8B | 127.2B | 9 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.9B | 64.6B | 2 | |
| No | Zero retention | No | — | Terms | Privacy | 2.7B | 54.1B | 1 | |
| No | Retains prompts | No | — | Terms | Privacy | 2.3B | 6.6B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.2B | 118.5B | 7 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.0B | 73.9B | 15 | |
| No | Retains prompts | Yes | — | Terms | — | 1.4B | 636.3B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.4B | 32.8B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1B | 32.0B | 7 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.1B | 51.3B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 866.6M | 19.9B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 719.8M | 12.7B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 231.8M | 6.5B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 175.9M | 2.0B | 2 | |
| No | Retains prompts | Yes | United States | — | — | 92.9M | 5.7B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 56.1M | 18.1B | 4 | |
| No | Retains prompts | No | — | — | — | 54.4M | 684.9M | 16 | |
| No | 30 days retention | No | China | — | Privacy | 49.8M | 1.5T | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 9.6M | 303.9M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.6M | 62.1M | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 900.1K | 19.5M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |