| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | — | Terms | — | 2.6T | 3.5T | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.3T | 68.8T | 109 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.9T | 41.3T | 5 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.7T | 54.2T | 6 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.5T | 19.7T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3T | 34.9T | 19 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.2T | 27.1T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 954.4B | 23.2T | 101 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 944.5B | 10.6T | 12 | |
| No | Zero retention | Yes | — | Terms | Privacy | 939.4B | 31.2T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 931.1B | 23.0T | 65 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 780.0B | 25.1T | 58 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 576.4B | 9.5T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 555.0B | 6.2T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 529.6B | 9.7T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 524.0B | 10.1T | 19 | |
| No | Zero retention | Yes | — | Terms | Privacy | 474.2B | 8.6T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 444.3B | 3.0T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 431.8B | 10.2T | 69 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 413.6B | 6.8T | 39 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 393.7B | 7.6T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 387.6B | 10.8T | 10 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 314.6B | 13.6T | 19 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 313.6B | 6.8T | 5 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 312.8B | 10.5T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 272.1B | 6.2T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 240.4B | 2.3T | 7 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 221.6B | 6.1T | 30 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 220.2B | 7.9T | 26 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 215.4B | 7.2T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 203.9B | 8.8T | 14 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 185.6B | 4.8T | 13 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 182.5B | 3.8T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 177.5B | 1.7T | 5 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 172.8B | 3.0T | 15 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 172.3B | 5.2T | 4 | |
| No | Retains prompts | Yes | United States | — | Privacy | 167.0B | 6.4T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 159.9B | 4.3T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 125.4B | 2.2T | 38 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 124.2B | 1.9T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 91.3B | 2.8T | 5 | |
| No | Zero retention | No | — | — | — | 79.2B | 1.1T | 5 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 79.0B | 1.8T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 76.5B | 515.4B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 75.0B | 2.6T | 20 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 74.9B | 1.1T | 10 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 73.6B | 1.1T | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 71.3B | 1.0T | 7 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 65.1B | 5.2T | 11 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 58.3B | 1.8T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 52.3B | 1.1T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 28.2B | 145.2B | 8 | |
| No | Zero retention | Yes | — | — | — | 25.1B | 179.1B | 3 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 23.9B | 796.2B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 23.8B | 514.9B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 22.2B | 796.5B | 8 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 20.5B | 530.3B | 10 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 15.3B | 495.3B | 11 | |
| No | Retains prompts | No | — | Terms | Privacy | 15.2B | 401.5B | 9 | |
| No | Zero retention | No | — | Terms | Privacy | 14.3B | 159.4B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 13.0B | 576.2B | 21 | |
| No | Zero retention | No | United States | Terms | Privacy | 13.0B | 574.3B | 3 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 12.5B | 1.1T | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 12.1B | 497.0B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 11.6B | 368.9B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 11.4B | 233.2B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 11.4B | 226.3B | 4 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 5.8B | 194.5B | 6 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 5.5B | 86.2B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.4B | 158.6B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.8B | 65.4B | 16 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.9B | 115.5B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.2B | 32.5B | 6 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.0B | 42.3B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 688.3M | 29.0B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 517.1M | 21.9B | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 361.3M | 25.6B | 4 | |
| No | 30 days retention | No | China | — | Privacy | 316.3M | 1.4T | 2 | |
| No | Retains prompts | Yes | United States | — | — | 264.2M | 5.6B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 213.6M | 6.0B | 8 | |
| No | Retains prompts | No | — | Terms | Privacy | 203.7M | 35.2B | 3 | |
| No | Retains prompts | No | — | — | — | 150.6M | 1.4B | 16 | |
| No | Zero retention | No | United States | Terms | Privacy | 142.5M | 1.5B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 53.3M | 8.7B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 15.4M | 322.7M | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 10.1M | 24.0B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.9M | 6.5M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.6M | 74.8M | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 162.5K | 16.5M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |