| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 3.4T | 41.5T | 92 | |
| No | Zero retention | Yes | China | Terms | Privacy | 3.0T | 41.5T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.2T | 12.8T | 23 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 1.1T | 11.0T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 982.6B | 25.0T | 65 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 716.3B | 20.8T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 641.0B | 19.8T | 71 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 530.1B | 10.6T | 22 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 490.3B | 30.3T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 455.4B | 5.9T | 3 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 450.2B | 11.1T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 411.7B | 16.6T | 102 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 396.7B | 11.4T | 3 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 330.0B | 8.1T | 62 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 329.5B | 9.6T | 32 | |
| No | 30 day retention | No | United States | Terms | Privacy | 247.9B | 4.0T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 236.1B | 2.5T | 38 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 225.3B | 6.5T | 23 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 221.7B | 7.7T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 207.3B | 2.0T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 203.9B | 2.7T | 33 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 191.6B | 6.9T | 23 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 180.7B | 5.5T | 26 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 176.8B | 5.5T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 158.2B | 4.0T | 53 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 157.9B | 818.4B | 13 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 148.3B | 4.7T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 144.0B | 1.7T | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 135.1B | 2.0T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 131.6B | 2.8T | 19 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 112.0B | 2.5T | 3 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 110.5B | 947.2B | 6 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 94.7B | 2.8T | 12 | |
| No | Retains prompts | Yes | United States | — | Privacy | 90.9B | 2.8T | 33 | |
| No | Retains prompts | Yes | — | Terms | — | 81.9B | 3.2T | 1 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 65.1B | 444.6B | 12 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 59.0B | 681.0B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 55.6B | 1.1T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 49.7B | 1.2T | 33 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 44.5B | 417.4B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 40.4B | 622.9B | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 39.2B | 683.2B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 38.0B | 568.9B | 7 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 33.8B | 576.5B | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 32.7B | 339.7B | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 32.4B | 1.0T | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 26.2B | 778.6B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 23.3B | 1.5T | 4 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 20.2B | 463.6B | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 20.0B | 682.1B | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 16.7B | 220.2B | 6 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 15.8B | 824.6B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 15.7B | 31.4B | 2 | |
| No | Retains prompts | No | — | — | — | 14.2B | 292.3B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 14.1B | 505.9B | 6 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 14.1B | 337.3B | 10 | |
| No | Zero retention | No | — | — | — | 11.3B | 95.7B | 4 | |
| No | Retains prompts | No | — | Terms | Privacy | 10.0B | 167.4B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.8B | 330.9B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.2B | 241.3B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.5B | 175.0B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.4B | 116.8B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.2B | 214.5B | 7 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 4.5B | 74.3B | 14 | |
| No | Zero retention | No | United States | Terms | Privacy | 3.7B | 197.3B | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 3.7B | 67.4B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.5B | 93.9B | 8 | |
| No | 30 day retention | No | China | — | Privacy | 2.7B | 102.0B | 2 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.0B | 34.3B | 2 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.8B | 54.6B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.6B | 42.4B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.1B | 44.4B | 4 | |
| No | 30 day retention | No | — | Terms | Privacy | 280.3M | 7.4B | 6 | |
| No | Retains prompts | Yes | United States | — | — | 100.2M | 1.3B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 50.9M | 6.3B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 34.1M | 838.6M | 3 | |
| No | Retains prompts | No | — | — | — | 15.2M | 329.5M | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 14.4M | 6.2B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 14.4M | 321.6M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.7M | 332.6M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 561.7K | 12.2M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |