| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 4.6T | 59.6T | 99 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 3.5T | 39.7T | 2 | |
| No | Zero retention | Yes | China | Terms | Privacy | 2.0T | 45.1T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.8T | 18.6T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4T | 26.1T | 8 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 1.3T | 23.1T | 12 | |
| No | Retains prompts | Yes | — | Terms | — | 1.2T | 28.3T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.2T | 26.6T | 106 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 42.8T | 22 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 948.9B | 32.7T | 11 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 904.6B | 21.7T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 884.6B | 25.1T | 53 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 787.8B | 15.0T | 19 | |
| No | Zero retention | Yes | — | Terms | Privacy | 678.2B | 17.0T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 636.8B | 12.6T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 580.5B | 10.4T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 528.1B | 8.5T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 526.9B | 12.4T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 487.9B | 12.1T | 71 | |
| No | Zero retention | Yes | — | Terms | Privacy | 487.3B | 26.4T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 462.6B | 7.6T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 456.8B | 11.1T | 22 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 438.7B | 12.4T | 8 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 398.4B | 39.8T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 366.7B | 6.1T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 353.7B | 14.4T | 47 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 346.2B | 2.4T | 4 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 342.0B | 9.6T | 44 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 316.8B | 7.4T | 30 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 285.8B | 6.4T | 12 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 237.7B | 7.0T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 232.9B | 6.1T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 226.1B | 9.9T | 41 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 224.2B | 2.7T | 15 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 222.0B | 6.5T | 30 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 205.6B | 8.3T | 19 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 202.7B | 5.3T | 43 | |
| No | Retains prompts | Yes | United States | — | Privacy | 166.9B | 5.8T | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 165.7B | 3.2T | 11 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 139.9B | 4.6T | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 112.7B | 122.1B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 112.3B | 2.6T | 7 | |
| No | Zero retention | Yes | — | — | — | 108.9B | 1.3T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 108.5B | 1.6T | 22 | |
| No | Zero retention | No | United States | Terms | Privacy | 98.5B | 1.2T | 3 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 84.6B | 1.9T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 82.9B | 2.5T | 37 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 79.2B | 3.2T | 5 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 76.2B | 3.0T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 74.3B | 802.9B | 9 | |
| No | Zero retention | No | — | — | — | 72.9B | 1.9T | 9 | |
| No | Zero retention | Yes | — | Terms | Privacy | 71.5B | 2.0T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 68.5B | 5.1T | 10 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 63.7B | 869.3B | 18 | |
| No | Zero retention | No | United States | Terms | Privacy | 60.3B | 1.0T | 6 | |
| No | Zero retention | No | — | Terms | Privacy | 55.4B | 814.3B | 3 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 45.4B | 2.2T | 30 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 41.0B | 231.0B | 1 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 36.6B | 950.7B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 34.9B | 1.5T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 33.6B | 2.0T | 20 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 27.1B | 274.8B | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 24.4B | 692.7B | 9 | |
| No | Zero retention | Yes | — | Terms | Privacy | 24.1B | 451.3B | 8 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 24.0B | 716.7B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 21.3B | 595.5B | 4 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 19.4B | 584.6B | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 18.8B | 637.8B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 16.6B | 398.3B | 7 | |
| No | Retains prompts | No | — | Terms | Privacy | 13.3B | 417.4B | 12 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 10.4B | 233.4B | 6 | |
| No | 30 days retention | No | — | Terms | Privacy | 9.0B | 35.4B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.6B | 175.3B | 2 | |
| No | 30 days retention | No | China | — | Privacy | 4.8B | 45.3B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 4.1B | 86.7B | 16 | |
| No | Retains prompts | No | — | Terms | Privacy | 3.6B | 171.7B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 3.4B | 80.7B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.0B | 42.0B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.0B | 37.2B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 934.5M | 55.9B | 10 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 861.0M | 30.1B | 6 | |
| No | Retains prompts | No | — | — | — | 711.7M | 3.7B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 382.9M | 15.5B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 317.1M | 7.2B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 250.7M | 1.1B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 132.6M | 3.8B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 127.9M | 8.7B | 2 | |
| No | Retains prompts | No | — | — | — | 80.7M | 3.0B | 16 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 70.8M | 13.1B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 39.9M | 452.5M | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 10.6M | 305.8M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 10.4M | 179.1M | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.7M | 143.1M | 11 | |
| No | Retains prompts | No | United States | Terms | Privacy | 2.8M | 13.5M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 99.4K | 6.3M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 32.6K | 37.9K | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |