| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.3T | 57.7T | 106 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4T | 19.7T | 9 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.3T | 32.3T | 2 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.3T | 42.8T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 41.3T | 23 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 988.2B | 33.4T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 881.0B | 25.7T | 107 | |
| No | Retains prompts | Yes | — | Terms | — | 837.4B | 23.4T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 760.4B | 11.5T | 19 | |
| No | Zero retention | Yes | — | Terms | Privacy | 679.7B | 27.3T | 14 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 679.2B | 20.5T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 669.6B | 8.1T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 589.9B | 14.3T | 11 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 562.0B | 6.0T | 12 | |
| No | Zero retention | Yes | — | Terms | Privacy | 559.2B | 15.3T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 549.5B | 24.7T | 62 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 507.3B | 45.8T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 480.5B | 11.0T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 434.5B | 4.6T | 14 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 424.0B | 10.9T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 402.2B | 6.6T | 3 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 391.3B | 11.8T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 329.5B | 12.2T | 69 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 322.4B | 10.2T | 22 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 320.8B | 18.7T | 14 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 309.0B | 1.2T | 4 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 285.1B | 9.8T | 44 | |
| No | Retains prompts | Yes | United States | — | Privacy | 276.4B | 6.3T | 30 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 262.4B | 6.8T | 30 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 251.5B | 6.8T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 232.4B | 16.4T | 47 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 200.7B | 8.9T | 18 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 176.4B | 2.1T | 14 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 170.6B | 6.2T | 28 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 168.6B | 5.0T | 43 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 167.3B | 6.0T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 166.9B | 5.5T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 161.7B | 6.5T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 148.3B | 2.0T | 21 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 146.3B | 4.7T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 143.2B | 11.1T | 41 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 117.9B | 2.6T | 9 | |
| No | Zero retention | Yes | — | — | — | 101.9B | 874.5B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 97.8B | 2.5T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 90.1B | 2.3T | 37 | |
| No | Zero retention | No | — | — | — | 87.3B | 1.7T | 8 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 83.8B | 1.7T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 76.4B | 1.5T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 74.5B | 2.9T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 74.1B | 1.1T | 22 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 70.6B | 3.2T | 15 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 59.9B | 755.4B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 49.9B | 846.9B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 48.8B | 1.4T | 5 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 43.3B | 698.5B | 16 | |
| No | Zero retention | No | — | Terms | Privacy | 41.9B | 605.6B | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 36.8B | 735.4B | 6 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 35.1B | 913.3B | 6 | |
| No | Retains prompts | No | United States | Terms | Privacy | 34.6B | 101.2B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 30.4B | 561.1B | 9 | |
| No | Zero retention | Yes | — | Terms | Privacy | 29.6B | 476.8B | 5 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 21.8B | 2.3T | 34 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 16.7B | 563.6B | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.8B | 657.8B | 8 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 13.6B | 658.9B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 12.6B | 368.6B | 7 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 11.5B | 200.9B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 11.2B | 195.6B | 6 | |
| No | Retains prompts | No | — | Terms | Privacy | 9.7B | 415.1B | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 8.4B | 478.2B | 7 | |
| No | Retains prompts | No | — | Terms | Privacy | 6.8B | 100.6B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.3B | 168.0B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.7B | 56.2B | 3 | |
| No | 30 days retention | No | China | — | Privacy | 3.0B | 56.3B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.4B | 25.8B | 3 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.4B | 82.0B | 16 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.3B | 65.2B | 10 | |
| No | 30 days retention | No | — | Terms | Privacy | 1.1B | 22.9B | 2 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 996.4M | 30.7B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 878.8M | 35.0B | 6 | |
| No | Retains prompts | No | — | — | — | 250.0M | 850.3M | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 248.0M | 6.3B | 9 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 98.1M | 15.1B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 97.9M | 19.5B | 4 | |
| No | Retains prompts | Yes | United States | — | — | 75.8M | 4.2B | 1 | |
| No | Retains prompts | No | — | — | — | 51.6M | 2.3B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 46.8M | 9.4B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 36.5M | 75.8M | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 28.6M | 539.6M | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 13.5M | 15.1B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 6.8M | 311.0M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.9M | 138.8M | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.5M | 112.5M | 11 | |
| No | Retains prompts | No | United States | Terms | Privacy | 263.8K | 3.6M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 89.9K | 9.3M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |