| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 3.7T | 44.3T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.1T | 42.5T | 92 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.3T | 13.8T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 25.6T | 65 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 982.6B | 12.0T | 13 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 723.6B | 21.1T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 654.3B | 19.6T | 71 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 617.9B | 11.0T | 22 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 516.0B | 11.5T | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 438.5B | 6.4T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 427.0B | 9.7T | 32 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 420.2B | 11.3T | 8 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 416.8B | 8.3T | 62 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 346.6B | 16.1T | 103 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 330.9B | 29.6T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 315.8B | 2.8T | 38 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 254.9B | 2.8T | 33 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 245.5B | 4.9T | 40 | |
| No | 30 day retention | No | United States | Terms | Privacy | 241.2B | 4.3T | 9 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 228.9B | 1.2T | 6 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 226.0B | 6.5T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 221.0B | 6.9T | 23 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 217.3B | 7.6T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 195.7B | 1.0T | 13 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 192.5B | 5.5T | 26 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 179.1B | 2.1T | 12 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 173.7B | 5.5T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 169.4B | 1.9T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 169.1B | 4.1T | 53 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 150.6B | 2.5T | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 146.4B | 2.1T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 105.5B | 2.9T | 19 | |
| No | Retains prompts | Yes | United States | — | Privacy | 97.8B | 2.8T | 33 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 93.4B | 772.3B | 4 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 83.9B | 2.8T | 12 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 81.4B | 517.9B | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 76.8B | 1.2T | 5 | |
| No | Retains prompts | Yes | — | Terms | — | 72.4B | 3.1T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 62.0B | 1.3T | 33 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 57.4B | 668.7B | 21 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 54.9B | 708.5B | 7 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 43.5B | 460.9B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 38.5B | 1.0T | 17 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 36.3B | 595.5B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 25.4B | 781.4B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 23.1B | 1.5T | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 20.5B | 580.9B | 7 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 17.8B | 472.9B | 21 | |
| No | Zero retention | Yes | — | Terms | Privacy | 16.9B | 356.6B | 7 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 15.2B | 799.3B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.0B | 504.9B | 6 | |
| No | Retains prompts | No | — | — | — | 14.2B | 298.4B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 12.7B | 229.4B | 6 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 12.7B | 337.1B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 12.5B | 335.8B | 7 | |
| No | Zero retention | No | — | — | — | 10.4B | 106.1B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 10.4B | 244.8B | 3 | |
| No | Retains prompts | No | — | Terms | Privacy | 9.6B | 173.6B | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 9.4B | 40.4B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.7B | 685.5B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.1B | 178.0B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.8B | 117.5B | 5 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.2B | 191.7B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.2B | 95.8B | 8 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 3.9B | 70.7B | 7 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.4B | 75.4B | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.1B | 209.7B | 7 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.1B | 36.4B | 2 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.9B | 54.7B | 4 | |
| No | 30 day retention | No | China | — | Privacy | 1.6B | 102.1B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3B | 41.1B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.2B | 43.8B | 4 | |
| No | 30 day retention | No | — | Terms | Privacy | 263.1M | 7.4B | 6 | |
| No | Retains prompts | Yes | United States | — | — | 85.5M | 1.3B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 64.0M | 6.0B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 31.9M | 857.4M | 3 | |
| No | Retains prompts | No | — | — | — | 20.4M | 340.4M | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 18.0M | 6.1B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 11.0M | 321.6M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.4M | 332.3M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 534.5K | 12.7M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |