| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | United States | Terms | Privacy | 2.9T | 8.9T | 19 | |
| No | Zero retention | Yes | China | Terms | Privacy | 2.4T | 69.0T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.9T | 66.6T | 97 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.1T | 20.2T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.0T | 15.3T | 108 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.0T | 29.4T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 889.6B | 23.6T | 75 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 857.2B | 24.0T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 805.2B | 26.3T | 62 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 603.1B | 9.9T | 18 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 571.7B | 15.5T | 23 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 489.4B | 13.8T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 470.3B | 5.1T | 8 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 384.8B | 10.1T | 64 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 358.3B | 6.9T | 7 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 334.9B | 20.9T | 14 | |
| No | Zero retention | Yes | — | Terms | Privacy | 287.9B | 751.7B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 270.8B | 5.6T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 243.6B | 6.8T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 237.6B | 2.3T | 20 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 230.3B | 5.7T | 39 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 228.9B | 17.9T | 23 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 228.2B | 5.3T | 25 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 215.3B | 5.3T | 27 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 204.4B | 5.1T | 58 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 202.6B | 3.8T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 192.8B | 7.4T | 33 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 191.3B | 6.1T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 176.4B | 4.5T | 3 | |
| No | Retains prompts | Yes | United States | — | Privacy | 170.9B | 3.7T | 34 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 158.6B | 5.1T | 13 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 119.7B | 10.0T | 10 | |
| No | 30 days retention | No | China | — | Privacy | 107.4B | 1.3T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 92.3B | 4.1T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 89.3B | 1.8T | 7 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 82.3B | 2.5T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 82.2B | 1.7T | 36 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 80.2B | 1.9T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 79.1B | 3.4T | 5 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 72.6B | 1.7T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 70.2B | 2.7T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 65.6B | 366.7B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 54.0B | 876.0B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 40.7B | 234.4B | 2 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 40.2B | 1.8T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 33.8B | 849.2B | 8 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 32.2B | 1.0T | 25 | |
| No | Zero retention | Yes | — | Terms | Privacy | 31.6B | 1.0T | 6 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 28.7B | 1.1T | 10 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 28.6B | 743.8B | 6 | |
| No | Zero retention | No | — | — | — | 27.4B | 470.0B | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 22.8B | 849.2B | 18 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 22.6B | 960.3B | 7 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 20.0B | 372.7B | 9 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 19.1B | 173.4B | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 18.1B | 269.9B | 7 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 17.8B | 523.0B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 16.9B | 620.4B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.4B | 716.1B | 4 | |
| No | Retains prompts | No | — | Terms | Privacy | 15.0B | 343.4B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 13.0B | 416.6B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 11.8B | 258.1B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.6B | 155.8B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.1B | 134.3B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.2B | 188.2B | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 5.1B | 257.5B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.3B | 127.6B | 9 | |
| No | Zero retention | No | — | Terms | Privacy | 3.7B | 18.5B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.9B | 180.5B | 7 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.6B | 57.4B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.2B | 84.4B | 14 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.9B | 55.9B | 4 | |
| No | Retains prompts | Yes | — | Terms | — | 1.7B | 1.0T | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.2B | 29.2B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.0B | 33.0B | 7 | |
| No | 30 days retention | No | — | Terms | Privacy | 785.0M | 8.3B | 1 | |
| No | Retains prompts | Yes | United States | — | — | 427.2M | 4.6B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 406.3M | 17.4B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 196.9M | 6.8B | 7 | |
| No | Retains prompts | No | — | — | — | 21.3M | 449.7M | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 13.1M | 1.1B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 10.4M | 305.3M | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.9M | 2.0B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.0M | 184.0M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 878.7K | 20.4M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |