| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 2.7T | 65.4T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.9T | 64.6T | 97 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 22.6T | 74 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 13.9T | 103 | |
| No | Zero retention | Yes | — | Terms | Privacy | 982.7B | 17.5T | 6 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 977.5B | 24.1T | 8 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 965.2B | 31.1T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 777.6B | 3.9T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 744.2B | 26.3T | 64 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 684.2B | 15.2T | 23 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 622.7B | 11.8T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 560.0B | 8.6T | 31 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 469.6B | 19.9T | 14 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 434.9B | 10.0T | 64 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 379.0B | 5.9T | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 333.8B | 17.9T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 293.9B | 3.9T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 266.8B | 1.9T | 21 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 259.0B | 6.9T | 9 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 240.9B | 5.0T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 235.3B | 5.4T | 39 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 225.2B | 5.3T | 23 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 218.0B | 5.3T | 27 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 205.1B | 3.4T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 194.7B | 7.5T | 32 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 194.0B | 6.2T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 182.4B | 5.0T | 57 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 181.3B | 5.2T | 13 | |
| No | Retains prompts | Yes | United States | — | Privacy | 177.5B | 3.5T | 35 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 150.3B | 5.0T | 17 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 137.0B | 4.2T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 134.8B | 3.3T | 5 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 134.6B | 10.6T | 10 | |
| No | 30 days retention | No | China | — | Privacy | 99.9B | 934.2B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 84.8B | 84.8B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 82.5B | 2.9T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 80.2B | 1.6T | 36 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 71.7B | 1.7T | 6 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 71.1B | 2.6T | 13 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 69.9B | 1.5T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 69.6B | 173.7B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 63.4B | 1.7T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 53.8B | 761.2B | 6 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 51.0B | 1.1T | 10 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 38.5B | 1.0T | 25 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 35.2B | 1.8T | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 34.2B | 938.0B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 29.0B | 1.0T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 24.8B | 853.6B | 8 | |
| No | Zero retention | No | — | — | — | 22.9B | 397.7B | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 22.9B | 889.0B | 18 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 22.1B | 118.0B | 7 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 21.3B | 733.9B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 21.2B | 867.4B | 4 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 17.0B | 565.8B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 14.6B | 629.5B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 13.8B | 166.9B | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 13.3B | 232.3B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 12.2B | 256.4B | 4 | |
| No | Retains prompts | No | — | Terms | Privacy | 12.2B | 317.9B | 8 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 12.1B | 359.9B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.5B | 418.9B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 8.1B | 139.0B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 5.9B | 267.9B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.2B | 192.5B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 4.6B | 14.6B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 4.1B | 4.2B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.5B | 128.6B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.1B | 195.9B | 7 | |
| No | Zero retention | No | — | Terms | Privacy | 2.8B | 6.3B | 1 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.4B | 54.6B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.3B | 124.5B | 5 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.9B | 55.6B | 4 | |
| No | Retains prompts | Yes | — | Terms | — | 1.7B | 1.2T | 1 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 1.6B | 84.7B | 14 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.3B | 28.1B | 5 | |
| No | Retains prompts | No | — | — | — | 1.2B | 203.9B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 921.9M | 33.1B | 7 | |
| No | 30 days retention | No | — | Terms | Privacy | 187.4M | 7.3B | 7 | |
| No | Retains prompts | Yes | United States | — | — | 100.0M | 4.1B | 1 | |
| No | Retains prompts | No | — | — | — | 36.1M | 439.1M | 15 | |
| No | 30 days retention | No | — | Terms | Privacy | 12.9M | 300.1M | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 12.7M | 1.4B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 10.3M | 1.7B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.7M | 206.5M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 636.4K | 18.8M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |