| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | 30 day retention | Yes | China | Terms | Privacy | 1.4T | 29.9T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4T | 21.8T | 62 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.3T | 30.5T | 97 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.0T | 17.4T | 8 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.0T | 32.6T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 598.9B | 21.5T | 67 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 591.9B | 15.7T | 97 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 523.1B | 7.6T | 21 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 410.0B | 9.1T | 24 | |
| No | Zero retention | Yes | — | Terms | Privacy | 366.6B | 1.8T | 3 | |
| No | 30 day retention | No | United States | Terms | Privacy | 311.8B | 2.2T | 9 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 280.4B | 7.7T | 60 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 269.5B | 4.4T | 38 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 257.2B | 11.6T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 250.2B | 10.0T | 31 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 212.6B | 10.0T | 9 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 205.1B | 7.4T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 204.6B | 1.8T | 13 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 186.8B | 5.9T | 12 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 174.8B | 5.3T | 25 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 174.3B | 6.1T | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 155.5B | 3.8T | 51 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 149.5B | 7.5T | 24 | |
| No | Zero retention | Yes | — | Terms | Privacy | 131.5B | 2.1T | 17 | |
| No | Retains prompts | Yes | United States | — | Privacy | 107.2B | 3.1T | 33 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 104.1B | 2.5T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 103.4B | 1.8T | 27 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 77.8B | 1.0T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 69.0B | 1.7T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 58.5B | 1.8T | 43 | |
| No | Retains prompts | Yes | — | — | — | 57.8B | 4.6T | 1 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 53.4B | 368.8B | 23 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 52.0B | 535.6B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 49.6B | 850.6B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 48.7B | 965.1B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 45.2B | 1.1T | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 44.2B | 305.7B | 1 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 40.0B | 3.1T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 31.3B | 730.4B | 10 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 30.9B | 1.0T | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 26.8B | 937.1B | 16 | |
| No | Zero retention | Yes | — | Terms | Privacy | 26.1B | 428.9B | 5 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 25.7B | 74.2B | 2 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 23.2B | 520.5B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 20.8B | 349.0B | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 20.7B | 1.6T | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 19.6B | 640.6B | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 18.9B | 127.0B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 18.6B | 411.0B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 17.1B | 490.0B | 6 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 13.7B | 373.9B | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 10.5B | 347.0B | 10 | |
| No | Retains prompts | No | — | Terms | Privacy | 9.7B | 117.4B | 3 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 9.6B | 333.1B | 7 | |
| No | Retains prompts | No | — | — | — | 9.1B | 250.1B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.8B | 537.7B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 8.8B | 224.2B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 8.1B | 172.2B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.0B | 268.0B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.0B | 165.8B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 6.6B | 239.7B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.8B | 81.0B | 8 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 3.8B | 58.7B | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.6B | 108.5B | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 2.1B | 45.7B | 7 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.8B | 54.1B | 4 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 1.7B | 21.8B | 2 | |
| No | 30 day retention | No | China | — | Privacy | 1.6B | 109.2B | 2 | |
| No | Zero retention | No | — | — | — | 1.6B | 1.6B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1B | 57.0B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 792.5M | 50.8B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 632.5M | 14.4B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 240.4M | 7.0B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 90.6M | 6.8B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 43.4M | 652.2M | 3 | |
| No | Retains prompts | No | — | — | — | 17.1M | 300.2M | 15 | |
| No | Retains prompts | Yes | United States | — | — | 16.1M | 726.2M | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.3M | 6.6B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 7.0M | 339.0M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.9M | 195.3M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.1M | 7.7M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |