| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 1.8T | 49.3T | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.8T | 59.7T | 109 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.7T | 44.9T | 5 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.4T | 24.3T | 2 | |
| No | Retains prompts | Yes | — | Terms | — | 1.3T | 20.4T | 2 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.2T | 31.4T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 38.7T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.0T | 12.8T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 944.8B | 23.7T | 67 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 921.7B | 14.3T | 12 | |
| No | Zero retention | Yes | — | Terms | Privacy | 831.7B | 29.7T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 681.9B | 25.4T | 106 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 632.4B | 6.4T | 16 | |
| No | Zero retention | Yes | — | Terms | Privacy | 588.1B | 11.6T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 537.7B | 10.8T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 520.8B | 10.3T | 40 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 511.7B | 8.9T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 489.6B | 12.4T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 450.6B | 8.5T | 38 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 373.6B | 22.2T | 52 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 348.8B | 10.7T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 319.1B | 11.2T | 69 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 296.7B | 4.3T | 7 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 274.8B | 11.9T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 265.0B | 7.0T | 7 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 255.3B | 6.2T | 31 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 251.8B | 6.8T | 5 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 245.7B | 4.2T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 243.5B | 10.3T | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 242.2B | 7.2T | 26 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 230.3B | 5.2T | 8 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 210.7B | 4.9T | 11 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 210.6B | 8.1T | 14 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 176.4B | 4.8T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 163.2B | 6.3T | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 163.0B | 5.0T | 4 | |
| No | Retains prompts | Yes | United States | — | Privacy | 158.6B | 6.3T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 135.0B | 1.3T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 130.1B | 2.3T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 119.4B | 2.5T | 10 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 92.2B | 3.0T | 15 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 87.7B | 1.5T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 85.9B | 2.7T | 5 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 83.3B | 2.1T | 30 | |
| No | Zero retention | No | — | — | — | 66.0B | 1.3T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 62.5B | 2.2T | 39 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 58.5B | 1.7T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 53.0B | 1.1T | 9 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 51.8B | 1.2T | 7 | |
| No | Zero retention | Yes | — | — | — | 51.3B | 344.8B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 45.9B | 514.5B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 42.3B | 2.5T | 21 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 36.5B | 828.5B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 36.1B | 578.9B | 22 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 26.6B | 579.5B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 26.3B | 762.8B | 8 | |
| No | Zero retention | No | — | Terms | Privacy | 25.6B | 259.3B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 25.6B | 338.6B | 10 | |
| No | Zero retention | Yes | — | Terms | Privacy | 22.2B | 464.4B | 7 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 20.8B | 533.7B | 13 | |
| No | Zero retention | No | United States | Terms | Privacy | 19.4B | 605.3B | 4 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 16.3B | 573.8B | 10 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 16.3B | 1.0T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 16.1B | 293.7B | 6 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 14.7B | 831.3B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 13.4B | 243.4B | 4 | |
| No | Retains prompts | No | — | Terms | Privacy | 11.9B | 411.6B | 9 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 11.6B | 187.3B | 6 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 6.7B | 110.0B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.0B | 161.8B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 4.6B | 73.0B | 16 | |
| No | Zero retention | No | United States | Terms | Privacy | 3.0B | 28.7B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.1B | 92.0B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4B | 32.8B | 6 | |
| No | 30 days retention | No | — | Terms | Privacy | 1.0B | 25.1B | 1 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 947.8M | 36.9B | 6 | |
| No | 30 days retention | No | China | — | Privacy | 928.1M | 867.5B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 782.9M | 4.6B | 3 | |
| No | Retains prompts | No | — | Terms | Privacy | 693.7M | 41.0B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 532.8M | 28.1B | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 356.8M | 23.8B | 4 | |
| No | Retains prompts | Yes | United States | — | — | 301.1M | 5.0B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 194.4M | 5.9B | 9 | |
| No | Retains prompts | No | — | — | — | 105.3M | 1.8B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 27.6M | 8.9B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 17.4M | 325.9M | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 11.1M | 23.8B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 10.8M | 99.9M | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 8.1M | 43.9M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 147.3K | 14.1M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 71.2K | 163.3K | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |