| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | 30 day retention | Yes | China | Terms | Privacy | 1.3T | 30.1T | 2 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.2T | 30.7T | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.2T | 27.3T | 97 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 937.7B | 14.5T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 777.8B | 20.2T | 61 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 585.6B | 22.7T | 70 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 533.5B | 14.2T | 97 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 458.4B | 8.1T | 24 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 392.9B | 8.4T | 9 | |
| No | Zero retention | Yes | — | Terms | Privacy | 357.3B | 470.3B | 3 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 338.3B | 7.5T | 60 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 308.8B | 12.4T | 3 | |
| No | 30 day retention | No | United States | Terms | Privacy | 278.8B | 905.2B | 9 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 271.8B | 6.7T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 256.4B | 5.4T | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 224.4B | 10.4T | 30 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 210.0B | 8.5T | 24 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 196.0B | 6.2T | 12 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 191.8B | 5.3T | 25 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 188.6B | 7.0T | 18 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 181.0B | 4.3T | 38 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 152.4B | 3.6T | 51 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 148.2B | 1.2T | 12 | |
| No | Zero retention | Yes | — | Terms | Privacy | 118.9B | 1.7T | 17 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 111.1B | 2.6T | 12 | |
| No | Retains prompts | Yes | United States | — | Privacy | 104.1B | 3.3T | 33 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 84.3B | 629.2B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 81.2B | 1.4T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 77.6B | 647.6B | 2 | |
| No | Retains prompts | Yes | — | — | — | 68.8B | 5.7T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 66.2B | 1.8T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 62.4B | 320.8B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 60.6B | 613.1B | 5 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 57.9B | 3.7T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 55.2B | 1.7T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 42.4B | 1.0T | 32 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 42.4B | 1.6T | 31 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 36.7B | 873.2B | 15 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 30.6B | 1.0T | 8 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 27.2B | 348.2B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 26.6B | 684.9B | 10 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 22.8B | 486.8B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 22.5B | 397.8B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.7B | 502.8B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 17.3B | 18.4B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 16.5B | 306.7B | 10 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 16.2B | 679.6B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.0B | 272.1B | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 13.6B | 226.5B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 13.3B | 212.8B | 2 | |
| Yes | Retains prompts | No | — | Terms | — | 11.9B | 11.9B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 11.5B | 204.1B | 3 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 11.4B | 332.4B | 7 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 10.8B | 408.1B | 13 | |
| No | Retains prompts | No | — | — | — | 10.0B | 241.7B | 3 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 7.6B | 314.0B | 20 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 7.6B | 175.7B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.1B | 164.0B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.6B | 238.9B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.7B | 68.6B | 8 | |
| No | Retains prompts | No | — | Terms | Privacy | 3.6B | 102.4B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.4B | 603.8B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.6B | 113.9B | 4 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.8B | 53.4B | 4 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 1.8B | 13.9B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 1.6B | 51.3B | 14 | |
| No | 30 day retention | No | China | — | Privacy | 1.5B | 111.1B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.4B | 50.0B | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 1.2B | 31.5B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 602.5M | 64.4B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 467.9M | 14.9B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 352.4M | 6.6B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 346.3M | 8.1B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 208.7M | 6.8B | 1 | |
| No | Retains prompts | Yes | United States | — | — | 50.1M | 749.9M | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 35.6M | 507.6M | 3 | |
| No | Retains prompts | No | — | — | — | 8.9M | 277.2M | 11 | |
| No | 30 day retention | No | — | Terms | Privacy | 8.0M | 350.0M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.6M | 161.8M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 262.8K | 4.1M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 2 |