| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.5T | 26.3T | 2 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.3T | 45.8T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.3T | 58.3T | 109 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.2T | 47.2T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 998.6B | 39.1T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 815.8B | 23.8T | 67 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 723.3B | 25.9T | 107 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 674.7B | 15.3T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 598.8B | 7.5T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 562.8B | 11.0T | 8 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 504.6B | 11.0T | 8 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 468.4B | 30.9T | 9 | |
| No | Zero retention | Yes | — | Terms | Privacy | 458.5B | 12.6T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 452.3B | 28.9T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 443.8B | 11.1T | 41 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 382.9B | 5.1T | 11 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 346.4B | 9.1T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 335.0B | 8.8T | 38 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 329.7B | 4.9T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 319.3B | 20.7T | 52 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 310.0B | 12.6T | 10 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 280.2B | 10.4T | 43 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 274.6B | 2.9T | 11 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 235.0B | 6.9T | 5 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 229.1B | 4.4T | 42 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 194.5B | 6.2T | 31 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 189.7B | 11.2T | 19 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 175.1B | 7.5T | 14 | |
| No | Retains prompts | Yes | United States | — | Privacy | 174.7B | 6.3T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 173.4B | 11.3T | 69 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 167.4B | 4.8T | 13 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 161.2B | 5.0T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 151.5B | 6.9T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 136.5B | 5.4T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 134.7B | 1.6T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 121.7B | 6.2T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 120.2B | 2.5T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 119.9B | 13.7T | 22 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 118.0B | 6.4T | 26 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 113.2B | 2.7T | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 85.2B | 1.2T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 73.0B | 2.2T | 39 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 63.3B | 1.7T | 2 | |
| No | Zero retention | No | — | — | — | 61.8B | 1.4T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 54.2B | 2.2T | 21 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 51.1B | 3.0T | 15 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 49.3B | 1.2T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 45.1B | 612.9B | 22 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 40.1B | 1.5T | 10 | |
| No | Zero retention | No | United States | Terms | Privacy | 38.6B | 570.6B | 3 | |
| No | Zero retention | No | — | Terms | Privacy | 37.1B | 334.7B | 3 | |
| No | Zero retention | Yes | — | — | — | 35.3B | 433.7B | 8 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 35.2B | 571.3B | 14 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 32.8B | 832.2B | 6 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 25.1B | 2.1T | 30 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 24.0B | 598.5B | 9 | |
| No | Zero retention | Yes | — | Terms | Privacy | 21.0B | 273.6B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 19.5B | 627.2B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 18.7B | 726.5B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 18.3B | 483.2B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 17.7B | 371.8B | 9 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 15.4B | 568.5B | 10 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 13.9B | 784.4B | 8 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 13.7B | 133.4B | 5 | |
| No | Retains prompts | No | — | Terms | Privacy | 13.1B | 414.0B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 12.4B | 312.7B | 6 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 9.6B | 928.4B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.0B | 162.6B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 4.8B | 182.5B | 6 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 3.2B | 77.6B | 16 | |
| No | Retains prompts | No | — | Terms | Privacy | 3.1B | 47.1B | 4 | |
| No | Retains prompts | Yes | — | Terms | — | 2.6B | 20.5T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.2B | 8.1B | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.9B | 33.7B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.3B | 85.3B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.2B | 33.0B | 6 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 931.3M | 35.1B | 6 | |
| No | 30 days retention | No | China | — | Privacy | 644.5M | 682.5B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 460.9M | 26.9B | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 195.5M | 20.3B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 166.4M | 5.9B | 9 | |
| No | Retains prompts | Yes | United States | — | — | 141.2M | 5.0B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 103.6M | 9.1B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 71.8M | 25.3B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 70.2M | 171.0M | 1 | |
| No | Retains prompts | No | — | — | — | 55.7M | 1.8B | 16 | |
| No | Zero retention | No | United States | Terms | Privacy | 26.7M | 23.2B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 8.6M | 321.0M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 7.0M | 60.4M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.5M | 106.0M | 7 | |
| No | Retains prompts | No | United States | Terms | Privacy | 165.9K | 384.2K | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 114.3K | 13.2M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |