| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 4.3T | 59.5T | 98 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.8T | 58.9T | 5 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 1.0T | 31.1T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 992.4B | 20.5T | 74 | |
| No | Zero retention | Yes | — | Terms | Privacy | 944.6B | 13.1T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 612.3B | 26.3T | 65 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 603.5B | 24.1T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 524.2B | 5.6T | 34 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 467.1B | 10.8T | 2 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 410.1B | 11.9T | 10 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 400.8B | 13.8T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 369.2B | 13.6T | 102 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 303.4B | 17.5T | 23 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 285.3B | 4.2T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 235.8B | 2.7T | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 227.0B | 4.3T | 2 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 225.6B | 18.0T | 13 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 221.6B | 9.3T | 63 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 217.9B | 4.7T | 39 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 182.8B | 6.7T | 4 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 152.8B | 5.3T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 150.1B | 4.8T | 57 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 141.9B | 6.3T | 9 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 141.6B | 5.2T | 27 | |
| No | Retains prompts | Yes | United States | — | Privacy | 141.5B | 3.1T | 36 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 136.1B | 5.1T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 117.5B | 2.0T | 3 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 110.3B | 4.4T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 105.3B | 2.7T | 19 | |
| No | Zero retention | Yes | — | Terms | Privacy | 101.1B | 2.8T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 90.9B | 2.8T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 88.2B | 5.2T | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 87.3B | 8.8T | 32 | |
| No | 30 day retention | No | China | — | Privacy | 74.9B | 533.2B | 2 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 70.5B | 1.1T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 69.3B | 1.4T | 36 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 48.8B | 2.8T | 13 | |
| No | Zero retention | Yes | — | Terms | Privacy | 48.6B | 804.6B | 6 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 43.7B | 825.6B | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 42.1B | 1.5T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 36.7B | 1.1T | 23 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 34.9B | 1.9T | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 34.7B | 883.3B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 33.2B | 1.7T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 32.1B | 581.7B | 7 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 27.8B | 748.5B | 26 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 25.8B | 681.1B | 5 | |
| No | Zero retention | No | — | — | — | 24.8B | 292.6B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 24.1B | 813.1B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 21.4B | 1.2T | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 18.9B | 901.9B | 18 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 17.7B | 630.5B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 16.1B | 670.9B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 12.9B | 173.3B | 7 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 11.4B | 30.7B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 10.1B | 409.8B | 6 | |
| No | Retains prompts | No | — | Terms | Privacy | 8.2B | 272.7B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 7.4B | 136.1B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.8B | 105.9B | 2 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 6.5B | 333.9B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.1B | 126.6B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.9B | 193.4B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 3.8B | 268.0B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 3.8B | 260.6B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.3B | 190.9B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.7B | 120.2B | 9 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.9B | 55.8B | 4 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 1.7B | 49.8B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 1.2B | 85.4B | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1B | 1.2B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 843.6M | 31.3B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 695.8M | 29.2B | 5 | |
| No | Retains prompts | Yes | — | Terms | — | 462.4M | 1.8T | 1 | |
| No | Retains prompts | Yes | United States | — | — | 408.4M | 2.9B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 309.6M | 5.6B | 4 | |
| No | Retains prompts | No | — | — | — | 256.5M | 232.5B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 199.5M | 7.1B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 38.2M | 1.1B | 3 | |
| No | 30 day retention | No | — | Terms | Privacy | 11.3M | 317.2M | 4 | |
| No | Retains prompts | No | — | — | — | 10.5M | 346.6M | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.4M | 1.4B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.7M | 229.3M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 723.7K | 17.8M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Zero retention | No | — | Terms | Privacy | 0 | 456.0M | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |