| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | — | Terms | — | 3.2T | 6.6T | 2 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.7T | 41.7T | 5 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.6T | 52.9T | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.6T | 67.1T | 109 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.5T | 20.7T | 2 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.3T | 27.7T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 35.5T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 854.3B | 23.6T | 101 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 822.0B | 11.2T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 808.1B | 22.9T | 65 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 691.0B | 24.7T | 58 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 557.6B | 3.5T | 16 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 485.2B | 9.6T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 476.9B | 6.6T | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 474.9B | 31.0T | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 452.2B | 9.1T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 415.0B | 10.3T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 404.4B | 9.5T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 401.4B | 10.9T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 381.3B | 2.7T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 355.2B | 7.0T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 312.4B | 10.3T | 69 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 295.1B | 7.7T | 29 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 284.4B | 10.5T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 280.8B | 6.4T | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 243.8B | 6.7T | 5 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 237.3B | 13.3T | 19 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 234.6B | 7.9T | 26 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 165.7B | 6.0T | 30 | |
| No | Retains prompts | Yes | United States | — | Privacy | 164.3B | 6.4T | 29 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 163.3B | 4.8T | 13 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 162.8B | 5.2T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 149.5B | 4.4T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 145.1B | 2.0T | 8 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 143.0B | 8.5T | 14 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 128.1B | 3.8T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 127.0B | 7.0T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 113.2B | 1.8T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 101.1B | 598.1B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 87.5B | 2.8T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 79.6B | 2.2T | 38 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 78.9B | 2.9T | 15 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 76.7B | 1.0T | 7 | |
| No | Zero retention | No | — | — | — | 70.7B | 1.1T | 5 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 63.8B | 1.2T | 10 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 63.8B | 5.1T | 11 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 60.9B | 1.8T | 30 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 57.0B | 1.1T | 3 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 54.0B | 1.8T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 43.2B | 1.1T | 8 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 31.4B | 800.6B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 29.4B | 2.6T | 18 | |
| No | Zero retention | Yes | — | — | — | 25.2B | 204.3B | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 25.2B | 520.0B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.9B | 162.0B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 19.3B | 384.6B | 3 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 19.3B | 549.6B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 17.4B | 785.0B | 8 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 15.9B | 497.2B | 10 | |
| No | Retains prompts | No | — | Terms | Privacy | 13.3B | 396.4B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 12.1B | 242.7B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 12.0B | 556.3B | 21 | |
| No | Zero retention | No | — | Terms | Privacy | 11.8B | 171.2B | 2 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 9.8B | 1.0T | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 9.6B | 484.0B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 8.0B | 570.3B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.9B | 224.5B | 4 | |
| No | 30 days retention | No | China | — | Privacy | 4.6B | 1.3T | 2 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 3.9B | 88.1B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 3.5B | 184.9B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.3B | 156.6B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.3B | 64.6B | 16 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.4B | 108.0B | 9 | |
| No | Retains prompts | No | — | Terms | Privacy | 990.1M | 36.2B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 901.6M | 32.2B | 6 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 842.7M | 41.3B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 583.7M | 29.0B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 486.2M | 22.4B | 2 | |
| No | Retains prompts | Yes | United States | — | — | 209.3M | 5.6B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 176.6M | 1.7B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 167.5M | 8.8B | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 162.3M | 25.7B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 145.6M | 5.9B | 8 | |
| No | Retains prompts | No | — | — | — | 53.7M | 1.4B | 16 | |
| No | 30 days retention | No | — | Terms | Privacy | 12.0M | 320.3M | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.1M | 23.9B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.1M | 77.2M | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.9M | 9.4M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 154.2K | 16.1M | 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 |