| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 3.8T | 51.3T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 3.1T | 48.1T | 96 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.0T | 17.0T | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 929.8B | 19.2T | 72 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 926.6B | 15.5T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 766.4B | 25.1T | 65 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 748.9B | 27.7T | 2 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 746.0B | 22.5T | 8 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 642.5B | 12.5T | 23 | |
| No | Zero retention | Yes | — | Terms | Privacy | 565.0B | 7.9T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 485.9B | 10.1T | 32 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 450.6B | 9.2T | 62 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 347.7B | 2.3T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 325.9B | 14.4T | 102 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 249.5B | 3.0T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 215.4B | 4.4T | 57 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 213.3B | 11.2T | 3 | |
| No | 30 day retention | No | United States | Terms | Privacy | 213.1B | 5.0T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 205.4B | 6.5T | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 191.2B | 2.4T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 188.6B | 1.3T | 4 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 185.9B | 5.4T | 13 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 185.6B | 5.9T | 23 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 184.7B | 7.1T | 4 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 184.6B | 5.3T | 26 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 181.5B | 3.4T | 33 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 172.7B | 3.3T | 38 | |
| No | Retains prompts | Yes | United States | — | Privacy | 139.5B | 2.8T | 35 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 134.8B | 2.4T | 17 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 117.3B | 4.7T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 81.8B | 1.5T | 5 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 80.8B | 2.8T | 13 | |
| No | Zero retention | Yes | — | Terms | Privacy | 77.1B | 2.9T | 19 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 77.0B | 12.5T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 74.3B | 779.4B | 1 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 67.0B | 692.0B | 2 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 63.1B | 640.6B | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 56.6B | 1.3T | 13 | |
| No | Zero retention | Yes | — | Terms | Privacy | 53.5B | 494.1B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 52.9B | 1.3T | 33 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 50.3B | 2.3T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 50.0B | 799.8B | 21 | |
| No | Retains prompts | Yes | — | Terms | — | 49.4B | 2.6T | 1 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 34.5B | 551.0B | 21 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 31.9B | 644.3B | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 31.3B | 761.4B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 27.8B | 385.5B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 25.3B | 797.4B | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 25.3B | 962.0B | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 23.7B | 1.5T | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 19.1B | 620.2B | 6 | |
| No | Retains prompts | No | — | Terms | Privacy | 16.8B | 221.6B | 6 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 15.4B | 715.9B | 8 | |
| No | Zero retention | No | — | — | — | 14.9B | 153.3B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 14.5B | 530.3B | 6 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 11.5B | 341.0B | 10 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 9.3B | 240.8B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.0B | 189.8B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.9B | 127.1B | 5 | |
| No | Zero retention | No | United States | Terms | Privacy | 7.0B | 252.8B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.9B | 184.8B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.8B | 65.6B | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 3.5B | 79.9B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.5B | 102.1B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 2.8B | 151.9B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.6B | 81.8B | 14 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.0B | 43.6B | 2 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.9B | 55.5B | 4 | |
| No | Retains prompts | No | — | — | — | 1.4B | 263.5B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.3B | 39.9B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 648.4M | 34.5B | 7 | |
| No | 30 day retention | No | — | Terms | Privacy | 327.6M | 7.6B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 91.3M | 5.5B | 2 | |
| No | Retains prompts | Yes | United States | — | — | 88.8M | 1.5B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 64.7M | 3.1B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 39.8M | 951.0M | 3 | |
| No | Retains prompts | No | — | — | — | 13.2M | 344.3M | 15 | |
| No | 30 day retention | No | — | Terms | Privacy | 10.6M | 325.1M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.7M | 325.6M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 375.3K | 15.3M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |