| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | — | Terms | — | 2.5T | 9.1T | 2 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.5T | 42.1T | 5 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.4T | 28.5T | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.4T | 66.0T | 109 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3T | 7.9T | 7 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.2T | 21.1T | 2 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.1T | 51.8T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 36.0T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 883.5B | 22.9T | 65 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 805.2B | 24.0T | 101 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 749.5B | 11.7T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 709.1B | 4.1T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 645.2B | 24.2T | 58 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 616.2B | 11.2T | 10 | |
| No | Zero retention | Yes | — | Terms | Privacy | 585.8B | 30.4T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 523.8B | 10.7T | 19 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 490.6B | 9.8T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 403.6B | 7.2T | 39 | |
| No | Zero retention | Yes | — | Terms | Privacy | 402.8B | 9.5T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 368.7B | 3.0T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 367.1B | 10.5T | 69 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 310.5B | 9.6T | 39 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 296.9B | 10.5T | 40 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 275.4B | 7.7T | 29 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 243.2B | 6.7T | 5 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 240.1B | 13.0T | 19 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 230.3B | 5.2T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 229.0B | 6.5T | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 221.6B | 7.6T | 26 | |
| No | Retains prompts | Yes | United States | — | Privacy | 165.9B | 6.4T | 29 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 162.7B | 5.1T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 158.7B | 4.5T | 6 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 158.4B | 4.7T | 13 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 157.3B | 6.0T | 30 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 153.8B | 8.5T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 148.4B | 2.1T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 114.0B | 701.6B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 104.3B | 1.9T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 100.0B | 6.7T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 98.1B | 3.8T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 90.6B | 2.8T | 5 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 80.1B | 1.9T | 30 | |
| No | Zero retention | No | — | — | — | 75.3B | 1.2T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 69.9B | 1.1T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 65.9B | 2.2T | 38 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 64.8B | 1.2T | 10 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 56.8B | 1.8T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 51.6B | 2.6T | 18 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 48.4B | 2.9T | 15 | |
| No | Zero retention | Yes | — | Terms | Privacy | 41.2B | 1.1T | 9 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 36.3B | 1.1T | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 31.9B | 414.0B | 3 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 29.2B | 803.7B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 24.8B | 525.3B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 24.1B | 182.4B | 8 | |
| No | Zero retention | Yes | — | — | — | 21.4B | 225.7B | 3 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 20.2B | 560.8B | 8 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 16.9B | 501.9B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 16.6B | 772.0B | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 13.4B | 554.4B | 21 | |
| No | Zero retention | No | — | Terms | Privacy | 11.6B | 182.8B | 2 | |
| No | Retains prompts | No | — | Terms | Privacy | 11.5B | 394.8B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 11.3B | 250.4B | 6 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 10.0B | 1.0T | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 9.9B | 467.1B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 8.4B | 225.6B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 6.4B | 568.0B | 3 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 4.8B | 91.0B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.5B | 154.8B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 3.2B | 4.9B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.8B | 176.6B | 6 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.2B | 64.4B | 16 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.4B | 99.1B | 9 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.0B | 40.5B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 898.7M | 32.0B | 6 | |
| No | 30 days retention | No | China | — | Privacy | 800.9M | 1.2T | 2 | |
| No | Retains prompts | No | — | Terms | Privacy | 722.6M | 36.9B | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 476.0M | 28.9B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 415.5M | 22.8B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 143.7M | 5.8B | 8 | |
| No | Retains prompts | Yes | United States | — | — | 106.3M | 5.5B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 94.5M | 25.3B | 4 | |
| No | Retains prompts | No | — | — | — | 49.5M | 1.5B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 22.0M | 8.8B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 13.0M | 23.9B | 3 | |
| No | 30 days retention | No | — | Terms | Privacy | 6.2M | 316.5M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.3M | 12.7M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.1M | 78.1M | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 80.0K | 15.8M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |