| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 3.0T | 55.0T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.8T | 32.2T | 11 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.5T | 62.4T | 64 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3T | 33.7T | 98 | |
| No | Retains prompts | Yes | — | Terms | — | 1.1T | 35.6T | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.0T | 24.8T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.0T | 39.2T | 21 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 999.9B | 32.2T | 10 | |
| Yes | Retains prompts | No | — | Terms | — | 935.7B | 4.3T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 673.5B | 13.8T | 11 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 665.4B | 50.2T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 655.0B | 31.7T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 560.7B | 20.4T | 20 | |
| No | Zero retention | Yes | — | Terms | Privacy | 551.1B | 18.8T | 2 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 525.1B | 27.6T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 518.5B | 14.5T | 44 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 496.3B | 13.6T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 473.7B | 24.4T | 43 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 471.4B | 14.7T | 23 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 467.9B | 24.1T | 12 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 438.2B | 10.3T | 43 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 414.8B | 6.5T | 4 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 371.4B | 26.2T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 342.5B | 10.5T | 3 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 313.6B | 14.3T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 306.7B | 11.2T | 71 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 268.0B | 8.4T | 32 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 252.8B | 11.6T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 247.7B | 3.6T | 9 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 243.9B | 7.6T | 4 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 238.8B | 7.1T | 12 | |
| No | Zero retention | No | United States | Terms | Privacy | 215.5B | 1.8T | 3 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 206.1B | 4.4T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 198.3B | 7.5T | 16 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 194.6B | 7.3T | 20 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 178.8B | 5.2T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 170.1B | 8.5T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 164.7B | 10.3T | 40 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 158.2B | 6.0T | 15 | |
| No | Retains prompts | Yes | United States | — | Privacy | 123.8B | 4.6T | 31 | |
| No | Zero retention | Yes | — | — | — | 110.7B | 2.9T | 22 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 105.3B | 6.1T | 29 | |
| No | Zero retention | No | United States | Terms | Privacy | 96.6B | 2.1T | 2 | |
| No | Zero retention | No | — | — | — | 91.9B | 2.2T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 77.5B | 2.6T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 76.0B | 2.5T | 37 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 73.7B | 1.3T | 20 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 68.7B | 2.4T | 20 | |
| No | Zero retention | No | United States | Terms | Privacy | 60.3B | 1.3T | 5 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 54.5B | 684.9B | 11 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 49.5B | 4.9T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 40.9B | 2.0T | 21 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 35.3B | 2.4T | 13 | |
| No | Zero retention | Yes | France | Terms | Privacy | 31.3B | 1.8T | 29 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 31.0B | 1.1T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 28.9B | 1.3T | 9 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 26.9B | 684.7B | 9 | |
| No | Zero retention | No | — | Terms | Privacy | 25.9B | 1.1T | 4 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 23.1B | 1.3T | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 22.8B | 2.0T | 9 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 21.8B | 350.4B | 1 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 19.1B | 469.7B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 18.1B | 493.0B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 17.0B | 570.7B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 15.3B | 70.2B | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 15.2B | 217.6B | 2 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 14.2B | 645.4B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 10.9B | 3.6T | 8 | |
| No | Retains prompts | No | — | Terms | Privacy | 6.8B | 370.2B | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.2B | 183.9B | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 5.1B | 6.5B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.4B | 385.2B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 3.5B | 237.8B | 7 | |
| No | Retains prompts | No | — | Terms | Privacy | 3.3B | 205.8B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.8B | 73.3B | 3 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.7B | 97.8B | 16 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.2B | 29.1B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 982.0M | 37.0B | 5 | |
| No | Zero retention | No | United States | Terms | Privacy | 617.7M | 5.0B | 1 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 530.6M | 2.5B | 1 | |
| No | Retains prompts | No | — | — | — | 464.6M | 9.1B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 428.5M | 11.4B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 388.1M | 38.1B | 10 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 321.8M | 11.2B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 302.9M | 40.8B | 2 | |
| No | Retains prompts | No | — | — | — | 269.0M | 3.5B | 16 | |
| No | 30 days retention | No | China | — | Privacy | 253.5M | 45.0B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 238.2M | 8.5B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 90.3M | 2.2B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 14.6M | 256.0M | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 13.0M | 1.4B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 11.5M | 322.4M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.2M | 230.2M | 11 | |
| No | Retains prompts | No | United States | Terms | Privacy | 3.8M | 58.6M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 191.3K | 4.3M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 19.6K | 339.8K | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |