| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 1.7T | 17.2T | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.2T | 18.5T | 97 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 824.7B | 34.9T | 70 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 705.0B | 35.0T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 534.4B | 10.6T | 90 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 519.4B | 16.6T | 59 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 468.6B | 11.3T | 3 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 398.6B | 6.0T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 352.0B | 11.8T | 30 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 338.6B | 13.0T | 11 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 318.8B | 9.4T | 24 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 307.9B | 2.7T | 18 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 282.5B | 5.0T | 4 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 254.2B | 7.8T | 22 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 234.8B | 5.8T | 14 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 224.1B | 6.8T | 56 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 207.4B | 3.5T | 36 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 180.6B | 8.5T | 12 | |
| No | Retains prompts | Yes | — | — | — | 171.0B | 5.9T | 1 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 139.0B | 3.8T | 4 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 138.0B | 4.3T | 24 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 104.5B | 3.2T | 50 | |
| No | Retains prompts | Yes | United States | — | Privacy | 102.4B | 3.2T | 33 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 95.0B | 1.6T | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 78.6B | 921.6B | 17 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 66.7B | 2.2T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 66.3B | 1.6T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 61.2B | 806.6B | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 48.9B | 1.1T | 30 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 35.8B | 724.6B | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 33.2B | 693.9B | 3 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 30.7B | 912.9B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 28.9B | 286.2B | 1 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 28.9B | 1.1T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 26.6B | 457.3B | 9 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 23.8B | 618.6B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 23.7B | 633.4B | 10 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 17.4B | 414.6B | 5 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 17.2B | 309.6B | 7 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 16.0B | 225.4B | 2 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 12.3B | 438.4B | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 10.9B | 189.0B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 10.8B | 342.0B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 10.6B | 201.0B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.4B | 201.5B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.1B | 66.9B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.8B | 96.2B | 8 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 7.8B | 386.7B | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.9B | 162.6B | 16 | |
| No | Retains prompts | No | — | — | — | 5.7B | 260.6B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.9B | 221.2B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.8B | 134.5B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.8B | 163.1B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 4.7B | 188.5B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.1B | 99.4B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.1B | 66.9B | 8 | |
| No | Retains prompts | No | — | Terms | Privacy | 3.4B | 97.2B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.1B | 602.5B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 2.9B | 40.8B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.2B | 84.2B | 6 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 1.8B | 46.6B | 9 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.8B | 51.7B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1B | 11.2B | 1 | |
| No | 30 day retention | No | China | — | Privacy | 1.1B | 61.3B | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 787.7M | 8.7B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 328.3M | 20.2B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 280.8M | 8.8B | 2 | |
| No | 30 day retention | No | — | Terms | Privacy | 209.9M | 5.3B | 5 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 133.8M | 3.1B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 66.9M | 289.6M | 3 | |
| No | Retains prompts | Yes | United States | — | — | 26.1M | 2.0B | 1 | |
| No | 30 day retention | No | United States | Terms | Privacy | 22.2M | 8.3B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 18.5M | 44.2M | 5 | |
| No | Retains prompts | No | — | — | — | 14.4M | 249.0M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 8.9M | 227.3M | 2 | |
| No | 30 day retention | No | — | Terms | Privacy | 8.9M | 376.1M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.9M | 605.7M | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 59.8K | 1.6M | 2 | |
| No | Retains prompts | Yes | Israel | Terms | Privacy | 0 | 456.6M | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |