| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.3T | 69.9T | 107 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.1T | 30.4T | 19 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.7T | 39.3T | 5 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.4T | 60.8T | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.2T | 28.8T | 11 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.1T | 25.5T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 974.8B | 21.2T | 103 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 860.7B | 23.3T | 65 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 695.1B | 25.0T | 76 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 636.8B | 4.7T | 7 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 625.6B | 16.7T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 586.2B | 8.8T | 12 | |
| No | Zero retention | Yes | — | Terms | Privacy | 529.9B | 7.2T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 476.7B | 10.1T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 431.6B | 9.4T | 68 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 426.4B | 6.7T | 39 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 376.8B | 13.9T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 376.5B | 9.0T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 374.8B | 5.5T | 6 | |
| No | Retains prompts | Yes | United States | — | Privacy | 361.3B | 6.0T | 29 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 319.9B | 10.6T | 67 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 319.1B | 7.0T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 285.4B | 4.0T | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 259.9B | 6.5T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 251.6B | 10.7T | 14 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 233.5B | 9.3T | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 231.1B | 8.7T | 26 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 228.6B | 6.0T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 191.3B | 9.7T | 19 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 158.6B | 1.6T | 30 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 155.3B | 5.2T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 153.2B | 3.8T | 42 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 149.8B | 4.8T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 129.6B | 1.2T | 5 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 117.4B | 2.7T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 116.7B | 1.9T | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 116.5B | 2.1T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 115.1B | 7.1T | 3 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 81.3B | 5.6T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 70.3B | 1.8T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 69.4B | 3.0T | 5 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 69.1B | 954.7B | 10 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 68.1B | 1.9T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 60.8B | 2.0T | 37 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 48.2B | 965.5B | 7 | |
| No | Retains prompts | Yes | — | Terms | — | 45.4B | 299.2B | 1 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 43.5B | 1.1T | 3 | |
| No | Zero retention | No | — | — | — | 42.6B | 881.4B | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 36.8B | 1.1T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 33.7B | 2.6T | 20 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 29.6B | 1.2T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 27.7B | 457.3B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 27.5B | 810.2B | 8 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 25.6B | 467.1B | 10 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 24.7B | 805.0B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 22.9B | 485.1B | 9 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 22.8B | 606.4B | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.3B | 202.2B | 5 | |
| No | Zero retention | No | United States | Terms | Privacy | 18.6B | 540.6B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 18.6B | 512.6B | 7 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 17.4B | 479.8B | 12 | |
| No | Retains prompts | No | — | Terms | Privacy | 14.8B | 388.9B | 9 | |
| No | Zero retention | No | — | Terms | Privacy | 10.7B | 117.4B | 1 | |
| No | Zero retention | Yes | — | — | — | 10.3B | 114.0B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.6B | 113.1B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.4B | 338.0B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 8.8B | 206.0B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 7.3B | 203.0B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.4B | 168.4B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 3.7B | 67.6B | 16 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 3.5B | 77.0B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.4B | 121.8B | 9 | |
| No | 30 days retention | No | — | Terms | Privacy | 1.7B | 20.4B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1B | 31.6B | 6 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.1B | 45.5B | 6 | |
| No | Retains prompts | No | — | Terms | Privacy | 786.8M | 33.3B | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 771.2M | 30.4B | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 674.5M | 21.5B | 4 | |
| No | 30 days retention | No | China | — | Privacy | 566.1M | 1.5T | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 277.1M | 6.1B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 192.8M | 943.5M | 1 | |
| No | Retains prompts | Yes | United States | — | — | 113.7M | 5.6B | 1 | |
| No | Retains prompts | No | — | — | — | 75.5M | 1.1B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 29.8M | 9.0B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 15.2M | 317.6M | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 14.9M | 24.1B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.8M | 72.4M | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 234.2K | 17.5M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 0 | 0 | 11 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |