| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 1.5T | 21.6T | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.3T | 21.4T | 97 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 875.2B | 17.6T | 61 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 815.3B | 32.1T | 69 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 634.4B | 12.1T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 577.5B | 12.0T | 98 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 517.6B | 32.7T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 420.5B | 11.4T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 360.8B | 3.8T | 20 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 344.2B | 9.2T | 24 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 331.3B | 6.0T | 15 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 327.4B | 12.4T | 11 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 279.5B | 5.5T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 259.1B | 3.8T | 36 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 256.2B | 4.7T | 25 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 224.7B | 7.5T | 23 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 185.8B | 6.9T | 56 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 176.5B | 7.5T | 12 | |
| No | Retains prompts | Yes | — | — | — | 142.6B | 6.0T | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 135.1B | 1.2T | 18 | |
| No | Retains prompts | Yes | United States | — | Privacy | 134.8B | 3.1T | 34 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 122.7B | 2.3T | 12 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 119.8B | 6.5T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 114.5B | 882.8B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 107.5B | 3.2T | 49 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 102.4B | 4.1T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 74.0B | 1.2T | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 71.8B | 219.0B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 67.3B | 1.6T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 54.5B | 1.7T | 11 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 53.4B | 122.8B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 43.0B | 378.8B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 42.2B | 889.7B | 31 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 39.0B | 1.1T | 11 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 37.1B | 787.2B | 16 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 32.3B | 957.4B | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 28.9B | 661.5B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 26.7B | 653.2B | 10 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 24.4B | 274.8B | 2 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 24.2B | 439.7B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 18.2B | 484.5B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.2B | 141.4B | 8 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 14.3B | 329.4B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 13.6B | 234.2B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 13.0B | 338.9B | 6 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 11.7B | 436.3B | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 10.3B | 191.5B | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.9B | 139.6B | 4 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 8.2B | 366.1B | 18 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 6.6B | 194.2B | 6 | |
| No | Retains prompts | No | — | — | — | 6.4B | 255.2B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.2B | 171.8B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.1B | 110.7B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.7B | 163.6B | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 5.5B | 195.9B | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.9B | 216.4B | 1 | |
| No | Retains prompts | No | — | Terms | Privacy | 3.6B | 100.4B | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 2.9B | 13.4B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.8B | 66.6B | 8 | |
| No | 30 day retention | No | China | — | Privacy | 2.5B | 62.2B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.2B | 49.4B | 14 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.2B | 4.3B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 2.1B | 46.2B | 3 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.9B | 51.8B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.8B | 604.3B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 980.3M | 78.5B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 614.9M | 2.1B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 613.6M | 18.2B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 398.6M | 8.9B | 2 | |
| No | 30 day retention | No | — | Terms | Privacy | 185.2M | 6.0B | 5 | |
| No | 30 day retention | No | United States | Terms | Privacy | 63.4M | 9.3B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 60.8M | 9.8B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 22.7M | 121.3M | 5 | |
| No | Zero retention | No | United States | Terms | Privacy | 16.6M | 361.2M | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 14.0M | 243.4M | 2 | |
| No | 30 day retention | No | — | Terms | Privacy | 10.3M | 363.4M | 4 | |
| No | Retains prompts | Yes | United States | — | — | 7.5M | 1.6B | 1 | |
| No | Retains prompts | No | — | — | — | 7.3M | 264.8M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 305.5K | 2.1M | 3 | |
| No | Retains prompts | Yes | Israel | Terms | Privacy | 0 | 409.2M | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |