| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| Yes | Retains prompts | No | — | Terms | — | 5.9T | 40.7T | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.0T | 72.2T | 107 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.7T | 24.9T | 19 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.6T | 33.7T | 5 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 932.6B | 24.3T | 8 | |
| No | Zero retention | Yes | China | Terms | Privacy | 831.6B | 67.6T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 790.0B | 24.0T | 63 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 785.3B | 18.5T | 103 | |
| No | Zero retention | Yes | — | Terms | Privacy | 734.6B | 25.2T | 11 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 734.4B | 16.0T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 667.0B | 8.4T | 67 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 540.3B | 8.3T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 523.8B | 25.4T | 76 | |
| No | Zero retention | Yes | — | Terms | Privacy | 470.6B | 5.3T | 1 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 406.1B | 7.8T | 11 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 345.9B | 11.0T | 67 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 327.8B | 2.0T | 8 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 293.0B | 14.9T | 22 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 274.2B | 6.8T | 27 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 251.5B | 7.1T | 38 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 237.5B | 9.5T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 237.3B | 9.2T | 8 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 229.9B | 7.8T | 11 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 224.3B | 13.6T | 14 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 218.7B | 5.9T | 29 | |
| No | Retains prompts | Yes | United States | — | Privacy | 212.5B | 5.3T | 33 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 197.4B | 9.6T | 19 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 191.5B | 12.2T | 25 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 166.8B | 6.8T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 165.9B | 5.0T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 156.8B | 1.4T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 140.1B | 3.2T | 5 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 137.7B | 3.9T | 42 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 136.1B | 5.5T | 4 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 136.0B | 2.7T | 14 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 135.8B | 4.9T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 92.1B | 870.4B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 91.8B | 3.4T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 79.4B | 2.0T | 37 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 76.6B | 1.4T | 29 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 72.2B | 6.5T | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 60.6B | 2.1T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 57.0B | 2.0T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 50.1B | 2.7T | 20 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 49.7B | 783.3B | 10 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 47.3B | 1.9T | 2 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 39.4B | 1.3T | 10 | |
| No | Zero retention | No | — | — | — | 39.2B | 740.7B | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 34.8B | 345.9B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 34.2B | 1.1T | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 31.1B | 947.6B | 7 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 25.1B | 817.8B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 23.2B | 815.4B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.0B | 454.2B | 6 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 18.2B | 366.0B | 10 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 16.9B | 1.3T | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 16.3B | 406.4B | 9 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 15.9B | 472.2B | 10 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 15.1B | 643.2B | 21 | |
| No | Zero retention | Yes | — | Terms | Privacy | 14.4B | 540.9B | 7 | |
| No | Retains prompts | No | — | Terms | Privacy | 14.3B | 388.6B | 9 | |
| No | Retains prompts | Yes | — | Terms | — | 13.2B | 363.4B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 12.2B | 290.1B | 3 | |
| No | Zero retention | No | — | Terms | Privacy | 9.6B | 90.5B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.5B | 174.5B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 7.9B | 209.6B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.9B | 178.9B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 4.9B | 216.4B | 6 | |
| No | Retains prompts | No | — | Terms | Privacy | 4.6B | 29.9B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.5B | 95.7B | 8 | |
| No | Zero retention | Yes | — | — | — | 3.9B | 72.9B | 1 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 3.8B | 70.8B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.3B | 127.9B | 9 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.5B | 69.3B | 16 | |
| No | 30 days retention | No | — | Terms | Privacy | 1.7B | 16.2B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4B | 8.1B | 2 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.3B | 48.7B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.2B | 31.3B | 7 | |
| No | 30 days retention | No | China | — | Privacy | 1.1B | 1.5T | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 826.7M | 32.7B | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 320.4M | 20.4B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 195.2M | 6.2B | 8 | |
| No | Retains prompts | Yes | United States | — | — | 97.3M | 5.5B | 1 | |
| No | Retains prompts | No | — | — | — | 65.6M | 875.9M | 16 | |
| No | Zero retention | No | United States | Terms | Privacy | 13.9M | 24.2B | 3 | |
| No | 30 days retention | No | — | Terms | Privacy | 9.8M | 306.1M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.3M | 63.5M | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 547.4K | 19.7M | 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 | |
| No | Zero retention | No | United States | Terms | Privacy | 0 | 0 | 2 |