| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| Yes | Retains prompts | No | — | Terms | — | 5.3T | 29.7T | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.1T | 73.7T | 107 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.0T | 21.4T | 19 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.7T | 31.6T | 5 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.4T | 71.1T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 816.2B | 24.4T | 63 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 808.3B | 23.9T | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 753.5B | 24.5T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 718.5B | 7.3T | 67 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 582.8B | 18.0T | 103 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 536.7B | 15.5T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 508.1B | 4.4T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 485.1B | 25.6T | 73 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 434.0B | 7.6T | 11 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 398.2B | 15.4T | 22 | |
| No | Retains prompts | Yes | United States | — | Privacy | 396.8B | 5.1T | 33 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 346.9B | 7.8T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 343.4B | 8.9T | 8 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 330.4B | 11.0T | 67 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 325.4B | 6.6T | 27 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 269.2B | 7.2T | 36 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 252.2B | 9.1T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 248.5B | 4.9T | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 212.5B | 14.2T | 25 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 205.1B | 5.7T | 30 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 196.2B | 15.6T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 191.5B | 9.6T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 185.0B | 1.4T | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 178.1B | 6.7T | 4 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 160.6B | 5.0T | 13 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 153.1B | 5.6T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 131.8B | 3.9T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 120.7B | 3.0T | 5 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 117.2B | 1.2T | 29 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 116.7B | 2.6T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 114.4B | 6.6T | 4 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 107.4B | 8.2T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 88.2B | 3.5T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 79.6B | 1.2T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 68.8B | 2.0T | 37 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 65.7B | 2.2T | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 58.7B | 2.3T | 16 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 57.3B | 702.0B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 55.8B | 766.2B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 51.1B | 2.7T | 20 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 48.8B | 1.9T | 2 | |
| No | Zero retention | No | — | — | — | 40.7B | 692.1B | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 37.2B | 1.1T | 10 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 28.3B | 1.3T | 10 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 26.9B | 826.6B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 24.7B | 988.8B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 24.3B | 833.1B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 21.7B | 299.5B | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 21.0B | 373.7B | 9 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 20.9B | 464.4B | 9 | |
| No | Zero retention | Yes | — | Terms | Privacy | 18.1B | 586.0B | 7 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 16.7B | 1.5T | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 15.7B | 691.4B | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.1B | 447.6B | 6 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 14.6B | 331.8B | 9 | |
| No | Zero retention | Yes | — | — | — | 13.5B | 64.7B | 1 | |
| No | Retains prompts | No | — | Terms | Privacy | 12.4B | 378.8B | 9 | |
| No | Zero retention | No | United States | Terms | Privacy | 10.3B | 270.9B | 3 | |
| No | Retains prompts | No | — | Terms | Privacy | 9.6B | 20.9B | 3 | |
| No | Zero retention | No | — | Terms | Privacy | 8.5B | 69.8B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 7.4B | 214.3B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.6B | 182.9B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.2B | 171.9B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 4.7B | 236.4B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.2B | 129.0B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.2B | 101.9B | 7 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.9B | 73.3B | 15 | |
| No | Zero retention | No | United States | Terms | Privacy | 2.9B | 24.2B | 3 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.8B | 67.5B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4B | 32.0B | 7 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.2B | 49.9B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.1B | 33.1B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 744.9M | 2.7B | 2 | |
| No | Retains prompts | Yes | — | Terms | — | 704.1M | 515.0B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 367.9M | 20.1B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 297.2M | 13.1B | 2 | |
| No | 30 days retention | No | China | — | Privacy | 251.7M | 1.5T | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 239.6M | 6.3B | 7 | |
| No | Retains prompts | Yes | United States | — | — | 128.6M | 5.7B | 1 | |
| No | Retains prompts | No | — | — | — | 55.3M | 785.8M | 16 | |
| No | 30 days retention | No | — | Terms | Privacy | 10.3M | 312.8M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.8M | 59.6M | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 656.6K | 19.6M | 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 |