| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 3.2T | 50.4T | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.2T | 63.7T | 101 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.6T | 40.6T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.5T | 28.7T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4T | 32.4T | 104 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.2T | 30.6T | 9 | |
| No | Retains prompts | Yes | — | Terms | — | 1.2T | 35.5T | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.2T | 26.0T | 13 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.0T | 32.9T | 10 | |
| Yes | Retains prompts | No | — | Terms | — | 973.2B | 1.6T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 779.9B | 25.4T | 53 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 768.9B | 24.9T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 760.7B | 13.8T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 736.0B | 19.6T | 19 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 729.1B | 51.6T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 727.0B | 18.4T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 704.0B | 12.3T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 634.4B | 13.9T | 44 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 565.3B | 26.5T | 7 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 539.8B | 14.3T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 456.1B | 11.4T | 71 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 453.3B | 9.9T | 3 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 406.7B | 9.5T | 44 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 396.3B | 13.5T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 390.7B | 11.6T | 12 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 346.3B | 8.3T | 32 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 327.8B | 4.6T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 298.1B | 9.1T | 42 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 288.2B | 30.6T | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 256.6B | 7.8T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 253.4B | 12.5T | 40 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 249.0B | 6.0T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 234.8B | 7.2T | 16 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 227.8B | 5.6T | 4 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 221.7B | 3.9T | 19 | |
| No | Zero retention | Yes | — | — | — | 212.2B | 2.5T | 21 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 190.3B | 6.4T | 29 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 185.6B | 6.6T | 12 | |
| No | Zero retention | No | United States | Terms | Privacy | 177.4B | 1.2T | 3 | |
| No | Retains prompts | Yes | United States | — | Privacy | 151.7B | 5.0T | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 151.4B | 3.0T | 9 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 148.3B | 7.9T | 20 | |
| No | Zero retention | No | United States | Terms | Privacy | 120.8B | 1.9T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 117.4B | 2.2T | 20 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 96.7B | 1.1T | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 95.4B | 1.2T | 9 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 94.5B | 5.1T | 42 | |
| No | Zero retention | Yes | France | Terms | Privacy | 88.7B | 2.0T | 30 | |
| No | Zero retention | No | — | — | — | 87.5B | 2.2T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 86.3B | 2.5T | 37 | |
| No | Zero retention | No | United States | Terms | Privacy | 76.0B | 1.2T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 75.1B | 2.8T | 3 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 74.3B | 2.8T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 41.2B | 2.1T | 21 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 37.4B | 605.1B | 11 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 35.0B | 1.0T | 6 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 33.1B | 416.9B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 29.1B | 2.1T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 28.3B | 4.1T | 9 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 28.0B | 1.4T | 5 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 27.8B | 677.0B | 9 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 22.8B | 628.2B | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 22.8B | 281.5B | 1 | |
| No | Zero retention | No | — | Terms | Privacy | 21.9B | 1.0T | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 21.7B | 669.5B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 20.0B | 180.3B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.7B | 591.1B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 15.2B | 475.2B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 14.6B | 14.9B | 3 | |
| No | Retains prompts | No | — | Terms | Privacy | 10.4B | 401.7B | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.6B | 415.7B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.4B | 180.1B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 5.9B | 242.2B | 7 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 5.0B | 94.4B | 16 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.1B | 65.1B | 3 | |
| No | Retains prompts | No | — | Terms | Privacy | 2.8B | 196.5B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 947.4M | 37.8B | 5 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 931.4M | 28.6B | 6 | |
| No | Retains prompts | No | — | — | — | 766.9M | 7.8B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 732.4M | 3.5B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 655.8M | 35.1B | 2 | |
| No | 30 days retention | No | China | — | Privacy | 555.7M | 45.2B | 2 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 537.0M | 537.0M | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 509.4M | 43.9B | 10 | |
| No | 30 days retention | No | — | Terms | Privacy | 316.8M | 8.3B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 247.7M | 6.3B | 1 | |
| No | Retains prompts | No | — | — | — | 220.6M | 3.3B | 16 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 123.6M | 14.9B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 28.4M | 2.1B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 16.3M | 319.7M | 5 | |
| No | Zero retention | No | United States | Terms | Privacy | 14.2M | 1.4B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 12.8M | 220.1M | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 10.8M | 210.9M | 11 | |
| No | Retains prompts | No | United States | Terms | Privacy | 5.7M | 44.5M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 101.2K | 4.5M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 22.8K | 262.0K | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |