| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.6T | 57.8T | 106 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.7T | 43.2T | 6 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.4T | 31.4T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3T | 18.4T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3T | 41.3T | 23 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.3T | 33.2T | 12 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 1.1T | 20.2T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.0T | 24.9T | 62 | |
| No | Zero retention | Yes | — | Terms | Privacy | 940.7B | 27.8T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 910.5B | 14.3T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 908.9B | 10.8T | 19 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 896.4B | 46.8T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 889.0B | 25.4T | 107 | |
| No | Zero retention | Yes | — | Terms | Privacy | 812.8B | 15.2T | 2 | |
| No | Retains prompts | Yes | — | Terms | — | 620.0B | 22.6T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 587.0B | 10.8T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 558.8B | 10.7T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 492.8B | 10.1T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 462.8B | 12.2T | 69 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 454.0B | 6.5T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 416.6B | 7.6T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 406.3B | 4.3T | 14 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 396.1B | 11.7T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 336.4B | 17.2T | 47 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 325.9B | 6.8T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 310.5B | 6.4T | 8 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 283.9B | 5.6T | 12 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 279.4B | 9.9T | 44 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 272.6B | 6.1T | 14 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 269.1B | 6.8T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 240.2B | 11.2T | 41 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 236.2B | 9.2T | 18 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 220.8B | 18.6T | 14 | |
| No | Retains prompts | Yes | United States | — | Privacy | 216.6B | 6.2T | 30 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 209.2B | 1.9T | 14 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 187.1B | 6.3T | 28 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 183.0B | 2.0T | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 179.6B | 2.5T | 9 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 147.9B | 3.2T | 15 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 147.3B | 4.7T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 138.9B | 5.1T | 43 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 108.1B | 5.6T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 106.2B | 2.5T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 103.8B | 2.3T | 37 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 102.8B | 960.1B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 89.8B | 1.5T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 88.1B | 1.1T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 87.4B | 2.8T | 5 | |
| No | Zero retention | Yes | — | — | — | 86.0B | 773.7B | 8 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 81.5B | 1.7T | 2 | |
| No | Zero retention | No | — | — | — | 68.3B | 1.6T | 8 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 67.1B | 679.0B | 16 | |
| No | Zero retention | No | United States | Terms | Privacy | 57.5B | 806.5B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 46.6B | 533.0B | 9 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 40.9B | 904.7B | 6 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 40.7B | 737.2B | 6 | |
| No | Zero retention | No | — | Terms | Privacy | 38.8B | 573.5B | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 36.3B | 66.5B | 1 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 35.8B | 2.3T | 34 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 31.0B | 1.4T | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 30.8B | 454.5B | 5 | |
| No | Zero retention | No | United States | Terms | Privacy | 27.5B | 710.8B | 6 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 21.3B | 570.9B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.5B | 673.2B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 17.9B | 488.7B | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 16.1B | 655.2B | 9 | |
| No | Retains prompts | No | — | Terms | Privacy | 15.7B | 93.8B | 4 | |
| No | Retains prompts | No | — | Terms | Privacy | 14.7B | 419.7B | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 13.4B | 358.7B | 7 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 11.3B | 192.2B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 8.3B | 190.2B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.1B | 169.4B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.9B | 23.3B | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 3.8B | 51.5B | 3 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.6B | 81.7B | 16 | |
| No | 30 days retention | No | China | — | Privacy | 1.8B | 113.0B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 1.7B | 23.0B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.1B | 68.8B | 10 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.0B | 30.4B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 764.6M | 35.2B | 6 | |
| No | Retains prompts | No | — | — | — | 423.8M | 600.2M | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 262.5M | 6.3B | 9 | |
| No | Retains prompts | No | — | — | — | 237.8M | 2.3B | 16 | |
| No | Zero retention | No | United States | Terms | Privacy | 195.3M | 20.8B | 4 | |
| No | Retains prompts | Yes | United States | — | — | 76.4M | 4.3B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 55.5M | 15.1B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 52.5M | 9.3B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 38.8M | 39.2M | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 12.3M | 20.2B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.6M | 511.0M | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 9.5M | 313.0M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 8.0M | 135.1M | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.2M | 108.0M | 11 | |
| No | Retains prompts | No | United States | Terms | Privacy | 282.1K | 3.3M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 90.4K | 9.9M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |