| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 3.4T | 46.8T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.9T | 43.3T | 96 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.3T | 14.8T | 23 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 1.0T | 13.0T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 987.6B | 25.5T | 65 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 834.2B | 11.6T | 22 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 747.3B | 21.5T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 733.4B | 19.3T | 72 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 644.7B | 11.8T | 3 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 460.6B | 8.5T | 62 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 449.2B | 9.8T | 32 | |
| No | Zero retention | Yes | — | Terms | Privacy | 428.5B | 6.8T | 3 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 402.4B | 11.5T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 329.2B | 15.6T | 103 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 292.8B | 3.0T | 38 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 277.6B | 3.1T | 33 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 260.1B | 29.0T | 2 | |
| No | 30 day retention | No | United States | Terms | Privacy | 252.7B | 4.5T | 9 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 241.2B | 1.4T | 6 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 218.0B | 6.3T | 23 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 217.1B | 7.5T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 195.0B | 2.2T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 177.6B | 4.2T | 57 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 177.6B | 6.9T | 17 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 173.8B | 5.5T | 13 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 169.1B | 4.9T | 41 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 164.7B | 5.4T | 26 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 163.7B | 2.0T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 163.2B | 1.2T | 13 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 160.9B | 2.3T | 2 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 116.1B | 2.4T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 115.1B | 883.5B | 4 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 97.5B | 2.8T | 13 | |
| No | Retains prompts | Yes | United States | — | Privacy | 91.9B | 2.8T | 35 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 88.3B | 1.3T | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 73.8B | 3.0T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 60.4B | 1.3T | 33 | |
| No | Retains prompts | Yes | — | Terms | — | 55.3B | 3.0T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 54.9B | 714.0B | 21 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 53.1B | 736.4B | 7 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 50.1B | 511.0B | 2 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 48.7B | 556.5B | 12 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 46.8B | 501.9B | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 42.8B | 1.5T | 4 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 35.2B | 617.0B | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 31.3B | 998.0B | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 26.1B | 785.6B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 25.0B | 598.5B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 22.1B | 517.3B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 18.9B | 375.5B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 18.2B | 697.9B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.0B | 343.4B | 7 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 13.7B | 774.8B | 8 | |
| No | Zero retention | No | — | — | — | 12.8B | 118.9B | 4 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 12.0B | 338.4B | 10 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 11.3B | 235.7B | 6 | |
| No | Retains prompts | No | — | Terms | Privacy | 10.8B | 181.0B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.8B | 181.6B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 8.6B | 247.5B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.7B | 46.5B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.0B | 119.3B | 5 | |
| No | Retains prompts | No | — | — | — | 5.9B | 295.2B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.6B | 98.1B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.0B | 183.9B | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 3.6B | 73.4B | 7 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.6B | 76.6B | 14 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 1.9B | 38.3B | 2 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.9B | 54.8B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.7B | 205.8B | 7 | |
| No | 30 day retention | No | China | — | Privacy | 1.3B | 101.5B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3B | 40.1B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.1B | 43.0B | 4 | |
| No | 30 day retention | No | — | Terms | Privacy | 269.3M | 7.4B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 123.4M | 5.9B | 2 | |
| No | Retains prompts | Yes | United States | — | — | 74.3M | 1.4B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 35.9M | 867.5M | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 13.7M | 5.9B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 10.5M | 320.7M | 4 | |
| No | Retains prompts | No | — | — | — | 7.8M | 337.8M | 15 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.1M | 331.7M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 805.6K | 13.5M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |