| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 1.1T | 24.1T | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 968.7B | 22.5T | 97 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 640.8B | 7.2T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 611.0B | 11.1T | 30 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 589.2B | 12.6T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 558.1B | 18.1T | 61 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 551.2B | 29.0T | 70 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 487.5B | 30.8T | 2 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 450.3B | 12.5T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 397.6B | 12.6T | 98 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 345.9B | 7.4T | 23 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 304.4B | 6.9T | 56 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 273.3B | 9.0T | 24 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 266.9B | 5.9T | 4 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 249.3B | 6.1T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 199.8B | 4.4T | 20 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 179.8B | 6.8T | 12 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 147.3B | 4.8T | 25 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 128.5B | 3.3T | 51 | |
| No | Retains prompts | Yes | — | — | — | 110.7B | 6.0T | 1 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 83.4B | 2.4T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 82.0B | 1.1T | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 67.6B | 1.3T | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 64.5B | 1.3T | 32 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 63.7B | 236.2B | 2 | |
| No | Retains prompts | Yes | United States | — | Privacy | 53.5B | 3.2T | 34 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 43.9B | 1.7T | 39 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 42.2B | 3.8T | 38 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 40.1B | 4.2T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 35.3B | 446.9B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 31.8B | 930.5B | 32 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 30.7B | 983.7B | 8 | |
| No | 30 day retention | No | China | — | Privacy | 29.7B | 99.3B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 26.3B | 1.7T | 10 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 24.7B | 819.0B | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 22.3B | 654.0B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 21.9B | 301.4B | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 20.8B | 686.8B | 5 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 19.7B | 1.1T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.6B | 163.5B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 18.9B | 345.9B | 7 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 17.4B | 452.7B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 13.4B | 482.3B | 8 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 12.0B | 301.0B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 11.1B | 248.8B | 9 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 9.6B | 333.0B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.0B | 163.3B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 8.3B | 179.2B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.6B | 197.4B | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.4B | 179.4B | 2 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 6.3B | 423.7B | 14 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 5.6B | 344.7B | 18 | |
| No | Zero retention | No | United States | Terms | Privacy | 5.4B | 224.7B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.2B | 162.2B | 3 | |
| No | Retains prompts | No | — | — | — | 5.0B | 245.0B | 3 | |
| No | 30 day retention | No | United States | Terms | Privacy | 5.0B | 15.3B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 4.4B | 22.5B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.0B | 9.3B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.7B | 111.6B | 4 | |
| No | Retains prompts | No | — | Terms | Privacy | 3.1B | 100.6B | 2 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.8B | 52.0B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.8B | 59.9B | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.7B | 185.6B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.6B | 601.0B | 7 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 1.3B | 7.1B | 1 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 1.2B | 47.4B | 14 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.1B | 48.5B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 672.0M | 72.7B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 408.1M | 16.8B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 355.6M | 8.8B | 2 | |
| No | 30 day retention | No | — | Terms | Privacy | 142.9M | 6.1B | 5 | |
| No | Retains prompts | Yes | United States | — | — | 26.1M | 1.2B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 20.4M | 366.4M | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 12.9M | 6.5B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 12.3M | 247.0M | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.4M | 380.8M | 3 | |
| No | Retains prompts | No | — | — | — | 7.1M | 268.2M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.7M | 131.9M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 270.2K | 2.8M | 3 | |
| No | Retains prompts | Yes | Israel | Terms | Privacy | 0 | 372.2M | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |