| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 4.0T | 53.8T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.6T | 49.8T | 98 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 1.4T | 28.4T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 25.8T | 65 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 909.0B | 19.5T | 72 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 857.3B | 16.4T | 13 | |
| No | Zero retention | Yes | — | Terms | Privacy | 754.0B | 8.7T | 5 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 625.1B | 22.7T | 8 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 502.1B | 12.7T | 23 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 391.6B | 9.4T | 62 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 360.0B | 2.6T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 348.1B | 10.2T | 32 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 338.4B | 14.5T | 102 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 303.3B | 17.2T | 21 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 284.7B | 12.1T | 9 | |
| No | 30 day retention | No | United States | Terms | Privacy | 236.3B | 5.3T | 9 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 231.6B | 3.2T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 226.3B | 3.6T | 33 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 225.8B | 11.1T | 3 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 217.8B | 5.8T | 23 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 204.4B | 5.4T | 26 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 199.6B | 3.5T | 38 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 184.5B | 7.1T | 4 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 177.1B | 5.4T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 174.6B | 1.4T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 173.3B | 4.8T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 168.9B | 4.5T | 57 | |
| No | Retains prompts | Yes | United States | — | Privacy | 165.0B | 2.9T | 35 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 158.7B | 6.4T | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 134.7B | 2.5T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 120.5B | 2.4T | 19 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 109.1B | 2.9T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 96.5B | 869.2B | 1 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 88.4B | 780.4B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 86.5B | 881.2B | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 82.6B | 1.5T | 5 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 71.7B | 2.2T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 58.4B | 1.4T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 57.3B | 1.3T | 33 | |
| No | Zero retention | Yes | — | Terms | Privacy | 55.1B | 2.9T | 15 | |
| No | Zero retention | Yes | — | Terms | Privacy | 54.7B | 548.8B | 6 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 47.4B | 672.0B | 12 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 42.7B | 586.8B | 21 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 32.8B | 782.8B | 7 | |
| No | Retains prompts | Yes | — | Terms | — | 30.3B | 2.5T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 28.4B | 806.7B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 27.9B | 406.6B | 9 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 25.9B | 658.2B | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 25.3B | 964.6B | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 21.5B | 535.2B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 20.3B | 1.5T | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 19.8B | 98.8B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 19.8B | 629.1B | 6 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 18.5B | 704.0B | 8 | |
| No | Zero retention | No | — | — | — | 14.6B | 167.9B | 4 | |
| No | Retains prompts | No | — | Terms | Privacy | 13.0B | 231.0B | 6 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 11.9B | 343.8B | 10 | |
| No | Zero retention | No | United States | Terms | Privacy | 10.2B | 258.2B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.4B | 195.4B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 7.7B | 245.8B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.3B | 129.4B | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.0B | 70.4B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.4B | 185.9B | 7 | |
| No | 30 day retention | No | China | — | Privacy | 4.4B | 99.2B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.3B | 146.8B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.0B | 104.0B | 8 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 3.3B | 84.1B | 14 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.5B | 46.2B | 2 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 2.1B | 55.9B | 4 | |
| No | Retains prompts | No | — | — | — | 1.2B | 260.9B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.1B | 38.2B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 833.7M | 32.9B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 253.5M | 2.5B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 230.9M | 7.7B | 6 | |
| No | Retains prompts | Yes | United States | — | — | 149.0M | 1.7B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 57.2M | 5.3B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 40.4M | 982.5M | 3 | |
| No | Retains prompts | No | — | — | — | 9.1M | 341.4M | 15 | |
| No | 30 day retention | No | — | Terms | Privacy | 8.0M | 325.8M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.0M | 318.1M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 654.5K | 15.9M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |