| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.1T | 57.8T | 110 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.8T | 44.5T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.7T | 43.5T | 23 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.5T | 34.7T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3T | 23.5T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 16.4T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 26.3T | 107 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 914.2B | 32.7T | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 885.6B | 16.2T | 2 | |
| No | Retains prompts | Yes | — | Terms | — | 869.4B | 26.0T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 825.5B | 24.9T | 62 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 793.5B | 20.3T | 14 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 778.8B | 21.9T | 12 | |
| No | Zero retention | Yes | — | Terms | Privacy | 692.9B | 26.9T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 682.7B | 13.6T | 19 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 675.1B | 11.9T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 673.7B | 9.6T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 608.9B | 7.5T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 494.1B | 6.7T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 486.6B | 11.8T | 42 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 482.3B | 42.4T | 3 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 411.3B | 12.1T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 409.1B | 10.6T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 369.5B | 12.0T | 71 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 350.8B | 7.2T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 307.1B | 5.5T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 281.1B | 14.9T | 47 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 281.0B | 6.9T | 5 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 273.9B | 9.6T | 44 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 265.6B | 6.1T | 12 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 240.8B | 1.9T | 4 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 226.7B | 6.4T | 29 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 188.8B | 6.1T | 14 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 172.8B | 5.1T | 43 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 172.1B | 8.7T | 20 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 167.0B | 2.4T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 164.6B | 10.4T | 41 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 161.3B | 5.3T | 10 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 148.5B | 4.6T | 4 | |
| No | Retains prompts | Yes | United States | — | Privacy | 143.2B | 6.3T | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 124.9B | 2.5T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 122.6B | 1.4T | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 122.1B | 3.0T | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 120.2B | 1.8T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 119.2B | 3.1T | 5 | |
| No | Zero retention | Yes | — | — | — | 103.2B | 1.1T | 8 | |
| No | Zero retention | No | — | — | — | 93.0B | 1.8T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 84.1B | 2.4T | 37 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 83.1B | 1.8T | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 81.4B | 1.0T | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 80.6B | 897.2B | 6 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 71.2B | 3.0T | 15 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 53.9B | 2.3T | 29 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 49.9B | 800.5B | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 48.4B | 2.0T | 20 | |
| No | Retains prompts | No | — | Terms | Privacy | 44.2B | 170.6B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 44.0B | 677.7B | 9 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 38.0B | 1.5T | 5 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 36.9B | 933.9B | 6 | |
| No | Zero retention | No | — | Terms | Privacy | 30.4B | 722.3B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 28.4B | 562.7B | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 25.3B | 672.7B | 9 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 19.0B | 750.7B | 6 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 18.4B | 578.3B | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 18.4B | 649.8B | 8 | |
| No | Retains prompts | No | — | Terms | Privacy | 13.6B | 412.7B | 12 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 13.4B | 237.0B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 13.4B | 457.8B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 13.2B | 385.5B | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 9.9B | 224.2B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.2B | 174.1B | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 6.9B | 177.5B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 6.5B | 72.5B | 3 | |
| No | 30 days retention | No | China | — | Privacy | 3.9B | 36.4B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.1B | 36.1B | 3 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.8B | 83.4B | 16 | |
| No | 30 days retention | No | — | Terms | Privacy | 1.4B | 26.2B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3B | 35.7B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.2B | 61.1B | 10 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 948.8M | 30.6B | 6 | |
| No | Retains prompts | No | — | — | — | 584.5M | 2.2B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 372.2M | 16.4B | 4 | |
| No | Retains prompts | No | — | — | — | 346.1M | 2.8B | 16 | |
| No | 30 days retention | No | — | Terms | Privacy | 217.2M | 7.1B | 9 | |
| No | Zero retention | No | United States | Terms | Privacy | 155.4M | 316.0M | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 138.3M | 7.0B | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 41.0M | 14.3B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 30.8M | 8.7B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 13.4M | 157.2M | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 11.0M | 561.2M | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 6.7M | 131.5M | 11 | |
| No | 30 days retention | No | — | Terms | Privacy | 6.1M | 308.7M | 4 | |
| No | Retains prompts | No | United States | Terms | Privacy | 3.3M | 8.6M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 133.6K | 7.5M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |