| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 3.5T | 57.0T | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.9T | 62.7T | 64 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.6T | 34.4T | 99 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4T | 33.2T | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.2T | 25.5T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.2T | 39.3T | 22 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.1T | 32.1T | 10 | |
| No | Retains prompts | Yes | — | Terms | — | 1.1T | 33.5T | 3 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.0T | 49.8T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 992.4B | 32.2T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 757.6B | 24.3T | 44 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 738.0B | 14.2T | 9 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 697.8B | 25.2T | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 672.6B | 19.1T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 664.1B | 20.5T | 17 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 656.5B | 23.9T | 12 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 598.3B | 10.6T | 43 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 540.5B | 14.6T | 16 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 540.3B | 28.0T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 539.7B | 14.7T | 45 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 518.6B | 13.6T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 511.4B | 14.8T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 471.6B | 11.8T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 429.0B | 11.4T | 73 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 360.0B | 6.8T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 335.0B | 10.7T | 3 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 321.8B | 8.6T | 32 | |
| No | Zero retention | Yes | — | Terms | Privacy | 317.3B | 3.2T | 26 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 282.6B | 8.3T | 42 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 266.0B | 7.3T | 20 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 264.2B | 4.6T | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 248.7B | 3.8T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 241.8B | 5.3T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 235.0B | 7.6T | 16 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 233.2B | 7.6T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 224.2B | 9.9T | 37 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 221.1B | 6.1T | 15 | |
| No | Zero retention | No | United States | Terms | Privacy | 211.9B | 2.0T | 3 | |
| No | Retains prompts | Yes | United States | — | Privacy | 138.6B | 4.6T | 29 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 128.6B | 6.0T | 27 | |
| No | Zero retention | No | United States | Terms | Privacy | 113.0B | 2.2T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 106.8B | 2.5T | 20 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 101.6B | 2.6T | 3 | |
| No | Zero retention | No | — | — | — | 97.5B | 2.2T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 91.2B | 2.5T | 37 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 89.1B | 2.4T | 13 | |
| No | Zero retention | No | United States | Terms | Privacy | 88.2B | 1.4T | 5 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 83.9B | 4.8T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 74.3B | 1.4T | 9 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 65.2B | 1.3T | 17 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 57.0B | 722.6B | 10 | |
| No | Zero retention | Yes | France | Terms | Privacy | 44.5B | 1.8T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 42.8B | 2.0T | 21 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 38.9B | 1.1T | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 29.8B | 1.3T | 5 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 29.7B | 689.2B | 9 | |
| No | Zero retention | Yes | — | Terms | Privacy | 29.0B | 2.0T | 9 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 26.5B | 7.1T | 12 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 23.6B | 659.2B | 7 | |
| No | Zero retention | No | — | Terms | Privacy | 23.4B | 1.1T | 4 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 23.3B | 373.6B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 23.0B | 93.2B | 3 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 19.8B | 485.6B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.4B | 572.7B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 17.4B | 500.8B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 16.3B | 3.5T | 8 | |
| No | Retains prompts | No | — | Terms | Privacy | 7.2B | 364.2B | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.2B | 187.8B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.3B | 379.3B | 5 | |
| No | Retains prompts | No | — | Terms | Privacy | 6.0B | 210.8B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 5.5B | 239.8B | 8 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 5.2B | 1.7T | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.9B | 222.3B | 4 | |
| No | Retains prompts | No | United States | Terms | Privacy | 4.9B | 11.4B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.6B | 76.9B | 3 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 3.5B | 99.0B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.1B | 14.5B | 1 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.1B | 29.4B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 986.8M | 37.8B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 884.8M | 37.0B | 5 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 681.4M | 3.2B | 1 | |
| No | Retains prompts | No | — | — | — | 604.7M | 9.7B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 562.8M | 40.9B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 483.2M | 5.5B | 1 | |
| No | 30 days retention | No | China | — | Privacy | 435.6M | 40.9B | 3 | |
| No | 30 days retention | No | — | Terms | Privacy | 262.0M | 8.6B | 9 | |
| No | Retains prompts | No | — | — | — | 133.9M | 3.6B | 16 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 60.5M | 11.0B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 56.2M | 2.1B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 46.2M | 46.2M | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 18.7M | 270.6M | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 14.3M | 1.4B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 9.9M | 320.2M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.8M | 233.1M | 11 | |
| No | Retains prompts | No | United States | Terms | Privacy | 3.4M | 62.0M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 128.2K | 4.3M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 90.4K | 430.2K | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |