| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.4T | 27.2T | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.2T | 57.5T | 109 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.2T | 46.0T | 5 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.2T | 31.1T | 9 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.1T | 45.5T | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 962.2B | 28.9T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 852.2B | 11.8T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 822.8B | 25.6T | 107 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 771.3B | 23.8T | 67 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 721.1B | 15.7T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 719.5B | 39.3T | 24 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 630.2B | 8.0T | 16 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 515.8B | 11.2T | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 496.5B | 13.0T | 2 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 400.8B | 5.3T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 389.5B | 5.8T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 388.3B | 12.7T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 361.9B | 9.0T | 38 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 327.9B | 11.1T | 41 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 325.9B | 19.9T | 47 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 310.2B | 9.2T | 29 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 276.3B | 10.2T | 44 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 230.2B | 3.0T | 11 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 222.9B | 6.9T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 215.5B | 11.3T | 69 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 199.7B | 10.7T | 19 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 190.5B | 6.2T | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 179.1B | 5.0T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 172.6B | 6.9T | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 166.6B | 6.3T | 26 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 161.3B | 4.7T | 14 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 158.3B | 4.9T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 146.3B | 7.2T | 14 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 144.2B | 4.4T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 133.9B | 1.7T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 127.1B | 13.7T | 22 | |
| No | Retains prompts | Yes | United States | — | Privacy | 123.0B | 6.2T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 121.0B | 5.4T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 107.0B | 2.7T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 102.8B | 692.8B | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 87.8B | 2.5T | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 84.9B | 1.3T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 74.8B | 2.0T | 21 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 66.5B | 3.0T | 15 | |
| No | Zero retention | No | — | — | — | 66.4B | 1.5T | 6 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 61.8B | 1.7T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 60.4B | 2.2T | 39 | |
| No | Zero retention | No | United States | Terms | Privacy | 50.8B | 607.6B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 48.4B | 1.3T | 7 | |
| No | Zero retention | Yes | — | — | — | 42.3B | 475.9B | 8 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 42.1B | 1.6T | 10 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 40.8B | 851.6B | 6 | |
| No | Zero retention | No | — | Terms | Privacy | 40.3B | 372.2B | 3 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 34.1B | 2.1T | 30 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 29.4B | 588.7B | 14 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 23.4B | 608.7B | 9 | |
| No | Retains prompts | No | — | Terms | Privacy | 17.3B | 64.4B | 4 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 15.5B | 748.9B | 6 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 15.2B | 561.7B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 14.6B | 716.3B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 14.3B | 629.3B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 14.2B | 482.9B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 13.7B | 382.4B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 13.6B | 324.0B | 6 | |
| No | Retains prompts | No | — | Terms | Privacy | 11.2B | 413.1B | 9 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 10.7B | 904.0B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 9.5B | 275.1B | 4 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 7.7B | 138.7B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.1B | 161.4B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 3.4B | 180.0B | 6 | |
| No | Retains prompts | Yes | — | Terms | — | 2.7B | 20.5T | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.6B | 78.5B | 16 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.1B | 10.1B | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 2.1B | 17.7B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.4B | 35.1B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.1B | 82.9B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.0B | 33.2B | 6 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 906.7M | 34.2B | 6 | |
| No | 30 days retention | No | China | — | Privacy | 677.9M | 583.2B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 430.7M | 26.0B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 287.3M | 21.5B | 2 | |
| No | Retains prompts | Yes | United States | — | — | 182.7M | 5.0B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 164.4M | 5.8B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 81.5M | 252.5M | 1 | |
| No | Retains prompts | No | — | — | — | 53.6M | 1.9B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 37.2M | 9.1B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 20.1M | 23.2B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 8.3M | 68.7M | 11 | |
| No | 30 days retention | No | — | Terms | Privacy | 6.4M | 314.6M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.9M | 109.2M | 7 | |
| No | Retains prompts | No | United States | Terms | Privacy | 138.6K | 522.8K | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 65.3K | 12.7M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |