| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| Yes | Retains prompts | No | — | Terms | — | 2.7T | 7.9T | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.4T | 70.2T | 105 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.7T | 72.5T | 5 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.5T | 28.6T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.2T | 13.5T | 18 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.1T | 22.7T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.0T | 25.2T | 77 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 789.1B | 25.7T | 62 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 748.0B | 23.0T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 645.9B | 6.9T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 578.9B | 16.1T | 111 | |
| No | Zero retention | Yes | — | Terms | Privacy | 461.5B | 1.9T | 1 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 459.9B | 14.6T | 2 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 445.1B | 15.6T | 22 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 423.5B | 10.7T | 67 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 369.8B | 6.9T | 10 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 315.0B | 7.7T | 7 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 307.9B | 5.8T | 25 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 264.2B | 5.4T | 62 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 262.4B | 5.4T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 247.4B | 2.1T | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 247.2B | 6.1T | 3 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 230.5B | 4.0T | 42 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 225.8B | 21.6T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 225.4B | 6.2T | 39 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 221.0B | 17.5T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 220.8B | 9.6T | 19 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 211.8B | 5.5T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 210.7B | 7.4T | 36 | |
| No | Retains prompts | Yes | United States | — | Privacy | 180.6B | 4.0T | 34 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 180.3B | 8.9T | 10 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 175.2B | 5.9T | 4 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 167.1B | 5.1T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 166.1B | 4.2T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 117.2B | 2.6T | 20 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 102.4B | 2.5T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 96.5B | 3.4T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 89.8B | 632.1B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 87.3B | 1.9T | 36 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 66.6B | 2.1T | 14 | |
| No | Zero retention | Yes | — | Terms | Privacy | 61.2B | 2.6T | 16 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 56.5B | 1.8T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 43.2B | 960.5B | 7 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 41.6B | 1.2T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 31.2B | 867.1B | 8 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 27.7B | 504.8B | 10 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 26.6B | 771.7B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 26.6B | 1.1T | 9 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 24.2B | 989.6B | 7 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 24.0B | 239.6B | 8 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 23.8B | 413.3B | 10 | |
| No | Zero retention | No | — | — | — | 23.7B | 542.3B | 5 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 23.3B | 1.7T | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 20.3B | 825.6B | 18 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 20.0B | 974.3B | 28 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.6B | 638.8B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 18.9B | 614.7B | 6 | |
| No | Retains prompts | No | — | Terms | Privacy | 14.2B | 366.2B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 12.9B | 425.6B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 12.1B | 272.2B | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 9.9B | 293.2B | 7 | |
| No | Zero retention | No | — | Terms | Privacy | 9.8B | 42.3B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.6B | 246.8B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 7.3B | 177.7B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.7B | 189.1B | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 5.8B | 259.5B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 5.0B | 9.6B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.9B | 133.1B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.7B | 140.7B | 6 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.7B | 60.5B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.3B | 155.3B | 7 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.1B | 79.0B | 14 | |
| No | Retains prompts | Yes | — | Terms | — | 1.5B | 872.7B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.3B | 30.7B | 5 | |
| No | 30 days retention | No | — | Terms | Privacy | 1.2B | 10.9B | 1 | |
| No | Zero retention | Yes | — | — | — | 1.1B | 3.2B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1B | 33.4B | 7 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 754.4M | 54.6B | 6 | |
| No | Retains prompts | Yes | United States | — | — | 254.7M | 5.4B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 181.6M | 6.7B | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 116.1M | 18.5B | 4 | |
| No | Retains prompts | No | — | — | — | 70.6M | 531.8M | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 25.6M | 1.1B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 8.7M | 303.8M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.3M | 180.8M | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 644.3K | 19.2M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |