| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 1.5T | 18.6T | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.4T | 19.6T | 97 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 859.6B | 34.2T | 70 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 750.0B | 34.5T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 661.5B | 11.1T | 92 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 604.4B | 16.9T | 59 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 498.6B | 11.6T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 436.5B | 3.1T | 19 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 425.0B | 6.4T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 410.9B | 11.8T | 30 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 339.9B | 7.0T | 55 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 311.0B | 9.4T | 24 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 302.3B | 12.7T | 11 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 245.1B | 5.2T | 4 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 230.3B | 7.7T | 22 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 198.8B | 4.4T | 24 | |
| No | Retains prompts | Yes | — | — | — | 169.6B | 5.9T | 1 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 166.4B | 8.2T | 12 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 159.1B | 5.7T | 14 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 119.5B | 3.9T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 109.5B | 3.5T | 36 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 96.1B | 3.2T | 50 | |
| No | Zero retention | Yes | — | Terms | Privacy | 86.6B | 991.3B | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 83.1B | 1.6T | 9 | |
| No | Retains prompts | Yes | United States | — | Privacy | 81.4B | 3.2T | 33 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 81.3B | 1.1T | 30 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 71.4B | 2.2T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 64.2B | 1.6T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 44.3B | 837.0B | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 35.3B | 723.1B | 3 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 34.5B | 1.1T | 11 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 33.8B | 743.4B | 15 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 31.8B | 929.0B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 29.3B | 476.4B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 28.5B | 95.4B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 26.9B | 641.8B | 10 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 26.2B | 630.3B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 25.6B | 311.8B | 1 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 22.6B | 423.2B | 5 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 20.2B | 322.2B | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 15.7B | 18.8B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 14.4B | 110.5B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 13.7B | 211.4B | 8 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 13.6B | 440.0B | 13 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 11.2B | 236.6B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 11.0B | 343.2B | 6 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 7.6B | 382.3B | 18 | |
| No | Zero retention | No | United States | Terms | Privacy | 7.3B | 207.6B | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 6.7B | 190.9B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.6B | 164.9B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.2B | 163.7B | 3 | |
| No | Retains prompts | No | — | — | — | 6.0B | 263.7B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.8B | 177.8B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.0B | 102.6B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.6B | 135.0B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.1B | 212.5B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.8B | 66.7B | 8 | |
| No | Retains prompts | No | — | Terms | Privacy | 3.6B | 98.6B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.0B | 604.2B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 2.7B | 42.8B | 3 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.7B | 48.4B | 10 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.9B | 51.7B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3B | 82.8B | 6 | |
| No | 30 day retention | No | China | — | Privacy | 990.8M | 61.0B | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 847.5M | 9.6B | 6 | |
| No | 30 day retention | No | — | Terms | Privacy | 601.8M | 5.8B | 5 | |
| No | 30 day retention | No | United States | Terms | Privacy | 468.9M | 8.8B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 376.8M | 19.5B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 237.0M | 8.8B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 181.9M | 786.1M | 3 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 141.6M | 141.6M | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 43.2M | 9.7B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 34.2M | 323.9M | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 29.1M | 73.3M | 5 | |
| No | 30 day retention | No | — | Terms | Privacy | 20.9M | 386.6M | 4 | |
| No | Retains prompts | No | — | — | — | 14.7M | 256.5M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 13.9M | 237.5M | 2 | |
| No | Retains prompts | Yes | United States | — | — | 7.8M | 1.9B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 66.7K | 1.7M | 2 | |
| No | Retains prompts | Yes | Israel | Terms | Privacy | 0 | 448.4M | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |