| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.1T | 57.5T | 106 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.1T | 41.8T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4T | 21.0T | 9 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.3T | 33.2T | 2 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.3T | 43.1T | 6 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.0T | 33.4T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 856.8B | 25.7T | 107 | |
| No | Retains prompts | Yes | — | Terms | — | 842.8B | 24.3T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 821.0B | 14.8T | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 766.9B | 27.1T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 684.6B | 12.2T | 19 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 626.2B | 20.8T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 604.2B | 8.5T | 9 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 548.1B | 6.2T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 545.3B | 24.4T | 62 | |
| No | Zero retention | Yes | — | Terms | Privacy | 503.4B | 15.4T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 458.7B | 6.4T | 3 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 430.5B | 19.0T | 14 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 425.9B | 11.0T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 383.1B | 5.0T | 15 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 383.0B | 11.8T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 355.4B | 11.1T | 39 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 343.9B | 44.4T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 274.7B | 12.1T | 69 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 264.7B | 6.8T | 30 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 260.5B | 1.5T | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 244.8B | 6.8T | 5 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 223.4B | 9.6T | 44 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 206.2B | 10.2T | 22 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 203.3B | 8.8T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 200.4B | 15.8T | 47 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 189.0B | 6.6T | 8 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 186.3B | 6.0T | 14 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 143.4B | 4.7T | 4 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 135.1B | 2.1T | 14 | |
| No | Retains prompts | Yes | United States | — | Privacy | 134.4B | 6.3T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 122.0B | 1.2T | 22 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 117.0B | 6.2T | 28 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 114.9B | 11.0T | 41 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 109.7B | 2.7T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 107.0B | 5.4T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 93.5B | 2.5T | 7 | |
| No | Zero retention | No | — | — | — | 91.4B | 1.7T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 91.3B | 2.3T | 37 | |
| No | Zero retention | Yes | — | Terms | Privacy | 89.5B | 1.6T | 10 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 81.6B | 1.8T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 80.6B | 3.0T | 5 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 77.5B | 4.9T | 43 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 76.7B | 3.1T | 15 | |
| No | Zero retention | Yes | — | — | — | 66.5B | 926.3B | 9 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 57.7B | 733.0B | 16 | |
| No | Zero retention | No | United States | Terms | Privacy | 51.7B | 774.1B | 6 | |
| No | Zero retention | No | — | Terms | Privacy | 51.4B | 652.0B | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 47.9B | 885.5B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 41.6B | 2.0T | 20 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 38.8B | 755.1B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 37.9B | 1.4T | 5 | |
| No | Retains prompts | No | United States | Terms | Privacy | 35.5B | 136.7B | 1 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 32.0B | 922.2B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 31.6B | 500.9B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 29.3B | 588.5B | 9 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 22.3B | 2.3T | 34 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 19.2B | 563.6B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 17.0B | 374.6B | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 16.6B | 207.6B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.7B | 647.2B | 8 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 14.0B | 655.6B | 9 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 11.3B | 209.5B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 9.0B | 467.6B | 7 | |
| No | Retains prompts | No | — | Terms | Privacy | 8.1B | 408.1B | 11 | |
| No | Retains prompts | No | — | Terms | Privacy | 6.9B | 107.4B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 5.3B | 61.6B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.6B | 167.1B | 2 | |
| No | 30 days retention | No | China | — | Privacy | 4.0B | 28.5B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.0B | 28.7B | 3 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.4B | 82.4B | 16 | |
| No | 30 days retention | No | — | Terms | Privacy | 2.1B | 24.3B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.2B | 63.1B | 10 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 891.2M | 30.7B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 815.5M | 35.0B | 6 | |
| No | 30 days retention | No | — | Terms | Privacy | 777.5M | 7.0B | 9 | |
| No | Retains prompts | No | — | — | — | 340.9M | 1.2B | 1 | |
| No | Retains prompts | Yes | United States | — | — | 272.1M | 4.3B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 127.0M | 14.9B | 4 | |
| No | Retains prompts | No | — | — | — | 119.4M | 2.4B | 16 | |
| No | Zero retention | No | United States | Terms | Privacy | 77.6M | 18.4B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 49.7M | 125.4M | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 43.4M | 9.9B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 11.0M | 9.2B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 8.1M | 311.3M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.7M | 142.7M | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.3M | 118.8M | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.7M | 545.3M | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 380.8K | 4.0M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 88.5K | 8.7M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |