| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.4T | 60.9T | 99 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 2.3T | 44.1T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.6T | 21.5T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3T | 28.0T | 106 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.3T | 45.9T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.0T | 28.2T | 8 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 959.1B | 32.9T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 943.2B | 40.9T | 22 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 882.7B | 23.3T | 14 | |
| No | Retains prompts | Yes | — | Terms | — | 873.2B | 30.2T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 822.5B | 26.1T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 641.2B | 9.6T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 629.9B | 16.2T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 547.2B | 25.1T | 53 | |
| No | Zero retention | Yes | — | Terms | Privacy | 537.3B | 17.2T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 477.0B | 23.6T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 452.9B | 11.0T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 436.8B | 8.2T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 432.9B | 11.6T | 22 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 400.2B | 12.9T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 379.4B | 11.5T | 71 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 363.3B | 12.6T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 353.7B | 12.7T | 42 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 309.2B | 37.1T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 293.4B | 14.1T | 47 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 263.4B | 7.6T | 30 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 256.4B | 3.2T | 4 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 240.1B | 8.1T | 19 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 238.1B | 9.4T | 44 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 224.1B | 6.5T | 16 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 214.6B | 7.2T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 187.7B | 9.6T | 41 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 183.6B | 3.0T | 15 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 178.1B | 6.6T | 30 | |
| No | Retains prompts | Yes | United States | — | Privacy | 133.1B | 5.5T | 31 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 123.5B | 6.1T | 14 | |
| No | Zero retention | No | United States | Terms | Privacy | 107.2B | 1.4T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 102.7B | 2.6T | 7 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 97.4B | 6.2T | 12 | |
| No | Zero retention | Yes | — | — | — | 95.4B | 1.5T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 90.2B | 3.4T | 11 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 87.9B | 5.2T | 43 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 73.0B | 2.0T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 69.2B | 1.8T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 63.6B | 2.5T | 37 | |
| No | Zero retention | No | — | — | — | 63.3B | 2.0T | 9 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 60.5B | 2.1T | 30 | |
| No | Zero retention | No | United States | Terms | Privacy | 57.7B | 272.3B | 3 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 55.3B | 2.9T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 51.8B | 5.0T | 10 | |
| No | Zero retention | Yes | — | Terms | Privacy | 50.7B | 2.0T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 47.1B | 900.5B | 9 | |
| No | Zero retention | No | United States | Terms | Privacy | 41.5B | 1.1T | 4 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 34.5B | 912.3B | 17 | |
| No | Zero retention | No | — | Terms | Privacy | 33.7B | 876.1B | 4 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 29.7B | 960.9B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 28.2B | 1.5T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 27.7B | 2.0T | 20 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 23.9B | 3.2T | 1 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 19.7B | 316.7B | 7 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 18.7B | 590.0B | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 17.0B | 452.2B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 15.9B | 617.1B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 14.6B | 622.3B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 13.9B | 99.5B | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 12.6B | 674.6B | 9 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 12.6B | 686.9B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 12.2B | 410.3B | 7 | |
| No | Retains prompts | No | — | Terms | Privacy | 7.9B | 407.9B | 12 | |
| No | Retains prompts | No | — | Terms | Privacy | 5.4B | 168.4B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.0B | 174.8B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 4.9B | 237.5B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.3B | 47.2B | 3 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.1B | 88.7B | 16 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.3B | 52.5B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 873.5M | 39.3B | 6 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 864.8M | 29.5B | 6 | |
| No | 30 days retention | No | China | — | Privacy | 573.3M | 47.2B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 443.3M | 2.3B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 419.3M | 36.4B | 2 | |
| No | Retains prompts | No | — | — | — | 386.5M | 4.8B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 359.7M | 14.1B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 269.3M | 7.4B | 9 | |
| No | Zero retention | No | United States | Terms | Privacy | 207.2M | 759.7M | 1 | |
| No | Retains prompts | No | — | — | — | 126.9M | 3.1B | 16 | |
| No | Zero retention | No | United States | Terms | Privacy | 119.2M | 1.2B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 106.5M | 4.0B | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 32.0M | 12.8B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 12.2M | 307.2M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 8.4M | 159.3M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.9M | 188.4M | 7 | |
| No | Retains prompts | No | United States | Terms | Privacy | 2.6M | 18.3M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 121.4K | 5.1M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 42.8K | 105.9K | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 0 | 243.0B | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |