| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 2.3T | 62.7T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.9T | 63.1T | 97 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.1T | 31.6T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.0T | 21.8T | 74 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 965.7B | 7.4T | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 933.3B | 26.4T | 64 | |
| No | Zero retention | Yes | — | Terms | Privacy | 882.7B | 15.5T | 6 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 714.8B | 24.0T | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 675.5B | 18.0T | 23 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 646.2B | 14.8T | 22 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 585.8B | 11.1T | 2 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 486.6B | 9.9T | 64 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 416.0B | 19.1T | 13 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 358.6B | 5.2T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 357.7B | 13.3T | 103 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 306.4B | 3.4T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 284.6B | 3.1T | 19 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 268.0B | 5.1T | 23 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 257.0B | 7.0T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 239.3B | 5.0T | 57 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 228.4B | 1.5T | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 223.0B | 7.5T | 32 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 222.7B | 3.0T | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 219.1B | 4.8T | 2 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 215.9B | 5.3T | 27 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 191.3B | 6.4T | 4 | |
| No | Retains prompts | Yes | United States | — | Privacy | 191.0B | 3.4T | 33 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 190.8B | 5.3T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 150.4B | 5.1T | 39 | |
| Yes | Retains prompts | No | — | Terms | — | 136.2B | 27.4T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 127.0B | 5.1T | 17 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 118.7B | 4.3T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 117.5B | 3.1T | 5 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 108.0B | 10.8T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 89.6B | 1.6T | 37 | |
| No | 30 days retention | No | China | — | Privacy | 85.3B | 746.6B | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 78.2B | 2.7T | 13 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 74.3B | 1.9T | 3 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 68.4B | 1.3T | 2 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 68.4B | 913.5B | 27 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 63.2B | 1.7T | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 63.2B | 2.9T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 51.4B | 1.6T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 51.4B | 856.9B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 47.5B | 701.5B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 40.3B | 941.8B | 7 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 38.2B | 997.4B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 35.7B | 55.1B | 4 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 30.1B | 729.2B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 26.6B | 904.0B | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 26.0B | 902.6B | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.7B | 422.7B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.7B | 959.4B | 4 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 17.3B | 354.6B | 8 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 17.3B | 590.6B | 8 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 17.0B | 76.1B | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 14.9B | 206.6B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 13.1B | 642.4B | 6 | |
| No | Zero retention | No | — | — | — | 13.0B | 350.1B | 5 | |
| No | Retains prompts | No | — | Terms | Privacy | 12.0B | 298.8B | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 11.6B | 278.3B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 10.4B | 154.4B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.9B | 264.5B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.6B | 124.9B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.6B | 128.1B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.6B | 193.6B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.1B | 125.4B | 5 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 3.7B | 10.1B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.6B | 197.1B | 7 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.4B | 52.2B | 2 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.8B | 55.9B | 4 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 1.8B | 85.2B | 14 | |
| No | Retains prompts | No | — | — | — | 1.7B | 219.3B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4B | 32.7B | 7 | |
| No | Retains prompts | Yes | — | Terms | — | 1.3B | 1.4T | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.1B | 28.4B | 5 | |
| No | Zero retention | No | United States | Terms | Privacy | 660.8M | 1.7B | 3 | |
| No | 30 days retention | No | — | Terms | Privacy | 205.3M | 7.4B | 7 | |
| No | Retains prompts | Yes | United States | — | — | 150.2M | 3.7B | 1 | |
| No | Zero retention | No | — | Terms | Privacy | 67.5M | 534.2M | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 60.6M | 1.4B | 1 | |
| No | Retains prompts | No | — | — | — | 16.9M | 403.5M | 15 | |
| No | 30 days retention | No | — | Terms | Privacy | 10.3M | 292.9M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.8M | 216.9M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 574.0K | 18.6M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |