| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.4T | 57.7T | 110 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.1T | 42.9T | 23 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.9T | 43.9T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4T | 22.3T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 15.6T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.0T | 26.0T | 107 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 946.1B | 33.6T | 2 | |
| No | Retains prompts | Yes | — | Terms | — | 854.5B | 25.1T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 807.4B | 27.0T | 13 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 802.7B | 21.3T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 802.4B | 12.9T | 19 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 799.3B | 33.0T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 785.2B | 24.6T | 62 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 779.2B | 19.6T | 14 | |
| No | Zero retention | Yes | — | Terms | Privacy | 655.0B | 15.7T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 626.8B | 9.0T | 9 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 595.3B | 11.4T | 29 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 463.0B | 43.4T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 430.3B | 6.3T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 420.1B | 11.4T | 42 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 402.7B | 11.9T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 367.7B | 5.3T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 364.8B | 12.1T | 69 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 350.5B | 10.4T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 334.1B | 6.9T | 8 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 318.6B | 7.0T | 30 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 268.1B | 6.8T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 255.0B | 15.5T | 47 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 253.2B | 8.8T | 19 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 239.4B | 6.1T | 12 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 226.8B | 9.6T | 44 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 224.9B | 5.1T | 43 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 203.5B | 6.0T | 14 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 201.9B | 6.3T | 29 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 201.6B | 1.7T | 4 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 166.7B | 2.3T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 150.5B | 10.8T | 41 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 144.6B | 4.6T | 4 | |
| No | Retains prompts | Yes | United States | — | Privacy | 137.5B | 6.3T | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 136.6B | 2.8T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 118.3B | 3.0T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 108.5B | 2.5T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 106.6B | 5.3T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 105.2B | 1.3T | 21 | |
| No | Zero retention | No | — | — | — | 96.8B | 1.8T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 96.7B | 2.4T | 37 | |
| No | Zero retention | Yes | — | — | — | 95.1B | 1.0T | 10 | |
| No | Zero retention | Yes | — | Terms | Privacy | 87.0B | 1.7T | 9 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 83.4B | 1.8T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 78.1B | 3.0T | 15 | |
| No | Zero retention | No | United States | Terms | Privacy | 63.4B | 946.3B | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 62.1B | 826.5B | 6 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 51.0B | 763.7B | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 48.2B | 635.3B | 9 | |
| No | Zero retention | Yes | — | Terms | Privacy | 47.1B | 538.2B | 5 | |
| No | Zero retention | No | — | Terms | Privacy | 44.0B | 693.4B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 41.2B | 2.0T | 20 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 37.9B | 768.3B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 35.4B | 1.4T | 5 | |
| No | Retains prompts | No | United States | Terms | Privacy | 33.9B | 170.6B | 1 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 33.5B | 926.5B | 6 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 29.2B | 2.3T | 29 | |
| No | Retains prompts | No | — | Terms | Privacy | 23.2B | 128.6B | 4 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 22.0B | 571.8B | 10 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 19.5B | 661.9B | 9 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 18.9B | 226.1B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 17.6B | 647.5B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 17.3B | 382.8B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 14.6B | 461.5B | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 12.6B | 217.2B | 6 | |
| No | Retains prompts | No | — | Terms | Privacy | 10.6B | 408.1B | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.2B | 170.6B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.4B | 65.9B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.2B | 33.0B | 3 | |
| No | 30 days retention | No | China | — | Privacy | 4.0B | 32.5B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.5B | 82.9B | 16 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.5B | 62.0B | 10 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.0B | 30.8B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 983.3M | 35.2B | 6 | |
| No | 30 days retention | No | — | Terms | Privacy | 801.5M | 25.0B | 2 | |
| No | Retains prompts | No | — | — | — | 445.3M | 1.6B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 281.7M | 7.1B | 9 | |
| No | Zero retention | No | United States | Terms | Privacy | 185.4M | 17.2B | 4 | |
| No | Retains prompts | No | — | — | — | 176.4M | 2.5B | 16 | |
| No | Zero retention | No | United States | Terms | Privacy | 146.2M | 6.8B | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 106.8M | 14.4B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 35.8M | 9.1B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 35.1M | 160.6M | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 7.8M | 311.4M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.1M | 124.8M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.9M | 146.3M | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.9M | 550.2M | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 1.3M | 5.3M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 78.7K | 8.0M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |