| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 2.6T | 70.9T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.1T | 67.9T | 105 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.3T | 21.2T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.2T | 11.1T | 18 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.1T | 29.0T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 981.6B | 15.9T | 110 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 927.8B | 24.2T | 75 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 873.6B | 26.5T | 62 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 867.6B | 23.8T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 678.7B | 9.4T | 19 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 630.9B | 21.5T | 14 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 547.6B | 15.4T | 23 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 515.7B | 14.1T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 508.6B | 5.6T | 8 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 392.5B | 10.3T | 65 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 362.3B | 7.2T | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 276.5B | 1.0T | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 274.6B | 18.0T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 268.7B | 4.7T | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 268.2B | 5.8T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 261.6B | 6.8T | 10 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 238.2B | 5.5T | 25 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 229.8B | 5.9T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 223.1B | 7.4T | 36 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 216.1B | 5.4T | 27 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 196.5B | 5.1T | 62 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 192.3B | 6.0T | 4 | |
| No | Retains prompts | Yes | United States | — | Privacy | 174.1B | 3.8T | 34 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 164.2B | 9.3T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 161.1B | 2.4T | 20 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 156.3B | 5.1T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 151.1B | 4.0T | 12 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 125.3B | 2.5T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 115.0B | 1.9T | 7 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 107.7B | 4.1T | 41 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 95.0B | 3.4T | 5 | |
| No | 30 days retention | No | China | — | Privacy | 93.5B | 1.3T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 83.1B | 449.8B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 75.7B | 2.0T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 71.3B | 1.8T | 36 | |
| No | Zero retention | Yes | — | Terms | Privacy | 70.9B | 2.7T | 16 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 66.0B | 1.7T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 51.3B | 913.1B | 7 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 42.0B | 1.1T | 10 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 41.2B | 1.8T | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 36.6B | 1.0T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 36.3B | 857.6B | 8 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 30.9B | 759.1B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 26.9B | 849.5B | 18 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 26.4B | 975.4B | 7 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 26.2B | 390.0B | 9 | |
| No | Zero retention | No | — | — | — | 25.3B | 495.4B | 5 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 20.4B | 193.7B | 8 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 19.8B | 512.4B | 10 | |
| No | Retains prompts | No | — | Terms | Privacy | 19.3B | 357.6B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.0B | 662.5B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 17.9B | 624.8B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.1B | 420.3B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 14.1B | 265.2B | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 13.0B | 277.5B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 12.6B | 240.5B | 2 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 9.1B | 1.0T | 25 | |
| No | Zero retention | Yes | — | Terms | Privacy | 8.3B | 163.8B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 7.5B | 261.8B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.3B | 188.8B | 1 | |
| No | Zero retention | No | — | Terms | Privacy | 5.7B | 24.2B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.7B | 137.8B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.4B | 130.4B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.1B | 170.1B | 7 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.6B | 58.6B | 2 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.8B | 56.0B | 4 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 1.8B | 83.0B | 14 | |
| No | Retains prompts | Yes | — | Terms | — | 1.5B | 989.0B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4B | 33.5B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.3B | 29.8B | 5 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 1.1B | 18.4B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 979.9M | 9.3B | 1 | |
| No | Retains prompts | Yes | United States | — | — | 250.5M | 4.9B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 196.5M | 6.8B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 88.0M | 2.1B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.0M | 1.1B | 1 | |
| No | Retains prompts | No | — | — | — | 15.0M | 459.4M | 15 | |
| No | 30 days retention | No | — | Terms | Privacy | 9.8M | 302.7M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.6M | 182.4M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 665.0K | 20.4M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Zero retention | Yes | — | — | — | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |