| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 3.4T | 52.2T | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.2T | 63.7T | 64 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.6T | 29.9T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.5T | 39.7T | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.5T | 32.5T | 98 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.3T | 25.3T | 12 | |
| No | Retains prompts | Yes | — | Terms | — | 1.2T | 36.7T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 31.2T | 9 | |
| Yes | Retains prompts | No | — | Terms | — | 1.1T | 2.6T | 1 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 984.0B | 32.7T | 10 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 920.5B | 51.5T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 821.0B | 14.4T | 23 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 765.5B | 10.0T | 43 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 742.6B | 12.9T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 741.2B | 20.1T | 20 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 731.3B | 14.2T | 44 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 706.0B | 25.2T | 43 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 703.7B | 25.0T | 12 | |
| No | Zero retention | Yes | — | Terms | Privacy | 698.3B | 18.6T | 2 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 555.1B | 26.9T | 7 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 523.5B | 14.4T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 511.2B | 11.5T | 71 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 471.9B | 11.5T | 12 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 397.9B | 13.7T | 8 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 395.6B | 29.2T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 388.2B | 10.3T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 336.7B | 3.2T | 9 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 328.9B | 6.1T | 15 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 325.1B | 8.4T | 32 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 323.3B | 4.9T | 9 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 273.2B | 7.8T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 262.6B | 9.0T | 42 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 234.1B | 4.1T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 233.0B | 11.5T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 222.9B | 7.4T | 16 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 210.6B | 6.4T | 29 | |
| No | Zero retention | No | United States | Terms | Privacy | 209.6B | 1.4T | 3 | |
| No | Zero retention | Yes | — | — | — | 205.2B | 2.7T | 22 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 197.0B | 5.7T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 183.4B | 5.1T | 42 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 177.5B | 6.7T | 12 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 166.5B | 7.6T | 20 | |
| No | Retains prompts | Yes | United States | — | Privacy | 137.0B | 4.7T | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 111.7B | 2.3T | 20 | |
| No | Zero retention | No | United States | Terms | Privacy | 102.8B | 1.2T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 102.4B | 2.5T | 37 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 99.0B | 1.2T | 21 | |
| No | Zero retention | No | — | — | — | 98.5B | 2.2T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 95.7B | 2.8T | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 78.8B | 2.0T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 77.1B | 1.3T | 9 | |
| No | Zero retention | Yes | France | Terms | Privacy | 74.8B | 2.0T | 29 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 63.2B | 2.7T | 13 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 43.9B | 628.7B | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 41.3B | 2.0T | 21 | |
| No | Zero retention | Yes | — | Terms | Privacy | 36.6B | 2.1T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 35.0B | 3.9T | 8 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 31.0B | 1.0T | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 30.0B | 1.4T | 5 | |
| No | Zero retention | No | — | Terms | Privacy | 28.2B | 1.0T | 4 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 27.5B | 438.0B | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 27.4B | 681.3B | 9 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 25.2B | 306.8B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 23.0B | 482.3B | 8 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 21.4B | 639.4B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 19.7B | 675.3B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 17.0B | 31.9B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 16.9B | 580.6B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 11.7B | 191.7B | 5 | |
| No | Retains prompts | No | — | Terms | Privacy | 9.1B | 390.7B | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.0B | 403.8B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 7.5B | 242.4B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.8B | 181.0B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 4.9B | 39.5B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 4.8B | 96.9B | 16 | |
| No | Retains prompts | No | — | Terms | Privacy | 3.0B | 198.4B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.6B | 67.8B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.0B | 8.3B | 1 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.0B | 28.7B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 718.0M | 37.3B | 5 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 672.7M | 1.2B | 1 | |
| No | Retains prompts | No | — | — | — | 529.3M | 8.4B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 514.7M | 4.0B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 380.6M | 41.6B | 10 | |
| No | 30 days retention | No | China | — | Privacy | 295.2M | 45.1B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 280.4M | 8.4B | 9 | |
| No | Retains prompts | No | United States | Terms | Privacy | 141.3M | 141.3M | 1 | |
| No | Retains prompts | No | — | — | — | 105.3M | 3.3B | 16 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 53.8M | 12.1B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 38.5M | 2.2B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 16.5M | 1.4B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 15.8M | 325.5M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 15.0M | 232.4M | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 12.9M | 222.9M | 11 | |
| No | Retains prompts | No | United States | Terms | Privacy | 5.1M | 49.6M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 112.6K | 4.3M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 29.0K | 291.1K | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |