| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 3.5T | 18.5T | 14 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.9T | 43.6T | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.7T | 57.6T | 109 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.6T | 30.5T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 1.4T | 19.4T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4T | 41.5T | 25 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3T | 17.2T | 9 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.2T | 32.5T | 12 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.1T | 27.9T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.0T | 24.6T | 62 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 975.0B | 47.0T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 970.3B | 25.2T | 107 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 939.2B | 14.1T | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 678.9B | 14.8T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 673.1B | 9.9T | 22 | |
| No | Retains prompts | Yes | — | Terms | — | 654.9B | 22.0T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 577.3B | 10.4T | 39 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 527.7B | 10.5T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 521.2B | 12.0T | 69 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 507.2B | 10.0T | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 473.5B | 6.5T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 442.3B | 7.4T | 8 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 410.9B | 11.6T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 399.5B | 4.0T | 14 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 376.0B | 6.1T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 356.8B | 18.0T | 46 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 342.2B | 6.7T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 336.6B | 6.1T | 8 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 329.0B | 10.1T | 44 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 275.4B | 6.8T | 5 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 265.7B | 5.5T | 12 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 247.1B | 9.3T | 18 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 234.3B | 6.4T | 28 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 208.6B | 11.2T | 41 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 195.0B | 3.2T | 15 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 192.1B | 5.1T | 43 | |
| No | Retains prompts | Yes | United States | — | Privacy | 170.2B | 6.2T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 166.3B | 2.4T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 161.3B | 1.9T | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 152.2B | 5.6T | 9 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 135.6B | 4.7T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 123.1B | 991.2B | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 104.7B | 2.3T | 37 | |
| No | Zero retention | Yes | — | — | — | 98.7B | 689.8B | 8 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 96.4B | 2.3T | 33 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 93.3B | 2.8T | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 79.9B | 1.4T | 10 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 67.8B | 1.7T | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 63.8B | 757.9B | 3 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 62.4B | 1.7T | 14 | |
| No | Zero retention | No | — | — | — | 61.0B | 1.6T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 56.2B | 2.5T | 7 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 53.7B | 893.0B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 53.7B | 1.4T | 6 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 44.4B | 636.1B | 16 | |
| No | Zero retention | No | — | Terms | Privacy | 42.4B | 543.0B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 40.8B | 431.6B | 5 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 36.9B | 895.2B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 29.3B | 489.9B | 9 | |
| No | Retains prompts | No | United States | Terms | Privacy | 28.9B | 30.2B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 26.2B | 695.0B | 5 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 21.2B | 571.4B | 10 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 21.2B | 740.6B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 21.1B | 693.9B | 8 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 17.4B | 649.2B | 9 | |
| No | Zero retention | Yes | — | Terms | Privacy | 16.8B | 488.0B | 7 | |
| No | Retains prompts | No | — | Terms | Privacy | 13.3B | 417.1B | 9 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 11.1B | 183.7B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.9B | 352.0B | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 8.3B | 192.5B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.2B | 169.4B | 2 | |
| No | Retains prompts | No | — | Terms | Privacy | 4.9B | 78.1B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.9B | 19.5B | 3 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.3B | 81.1B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.8B | 35.5B | 5 | |
| No | 30 days retention | No | — | Terms | Privacy | 1.8B | 21.7B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.2B | 72.5B | 9 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.1B | 30.8B | 6 | |
| No | 30 days retention | No | China | — | Privacy | 442.8M | 170.8B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 242.6M | 6.2B | 9 | |
| No | Zero retention | No | United States | Terms | Privacy | 218.9M | 47.7B | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 189.3M | 15.2B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 158.7M | 9.3B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 137.5M | 22.0B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 132.7M | 501.4M | 1 | |
| No | Retains prompts | No | — | — | — | 100.4M | 176.4M | 1 | |
| No | Retains prompts | No | — | — | — | 95.0M | 2.1B | 16 | |
| No | Retains prompts | Yes | United States | — | — | 63.7M | 4.6B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 15.0M | 22.7B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 10.0M | 312.6M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.2M | 102.8M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.5M | 129.4M | 7 | |
| No | Retains prompts | No | United States | Terms | Privacy | 1.0M | 3.0M | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 451.2K | 451.2K | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 218.9K | 10.3M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |