| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| Yes | Retains prompts | No | — | Terms | — | 4.0T | 14.8T | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.0T | 71.2T | 105 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.5T | 28.1T | 5 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.2T | 72.3T | 5 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.1T | 23.6T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.0T | 16.7T | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 914.3B | 25.8T | 77 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 872.4B | 16.8T | 111 | |
| No | Zero retention | Yes | — | Terms | Privacy | 849.0B | 24.1T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 566.8B | 24.1T | 62 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 539.1B | 7.1T | 39 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 443.7B | 14.3T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 406.8B | 6.1T | 62 | |
| No | Zero retention | Yes | — | Terms | Privacy | 360.8B | 3.0T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 340.0B | 7.7T | 8 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 308.2B | 9.0T | 10 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 282.9B | 10.7T | 67 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 276.3B | 15.3T | 22 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 244.0B | 8.5T | 7 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 238.9B | 7.0T | 10 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 220.2B | 6.5T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 180.4B | 9.6T | 19 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 167.1B | 5.8T | 4 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 158.3B | 6.0T | 25 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 151.3B | 5.0T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 150.9B | 2.6T | 6 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 149.2B | 5.5T | 30 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 133.9B | 16.0T | 24 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 127.5B | 4.5T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 123.5B | 7.1T | 35 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 121.9B | 18.5T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 121.7B | 3.6T | 5 | |
| No | Retains prompts | Yes | United States | — | Privacy | 117.2B | 4.1T | 34 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 104.3B | 913.9B | 6 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 99.3B | 3.7T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 83.4B | 6.4T | 4 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 73.1B | 2.5T | 14 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 52.1B | 1.8T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 52.0B | 2.4T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 45.4B | 2.6T | 20 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 45.1B | 2.2T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 43.4B | 1.9T | 36 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 41.1B | 954.9B | 29 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 36.7B | 577.7B | 10 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 36.6B | 1.3T | 10 | |
| No | Zero retention | No | — | — | — | 35.3B | 608.6B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 31.3B | 1.0T | 7 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 29.5B | 790.3B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 24.4B | 667.8B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 21.5B | 1.1T | 9 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 20.0B | 1.6T | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 19.7B | 995.8B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 17.1B | 592.7B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 16.1B | 835.8B | 8 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 14.6B | 331.9B | 7 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 13.1B | 427.4B | 10 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 13.0B | 754.2B | 18 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 11.9B | 284.5B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 11.4B | 434.9B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 10.5B | 163.0B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.9B | 273.2B | 4 | |
| No | Retains prompts | No | — | Terms | Privacy | 9.0B | 368.7B | 8 | |
| No | Zero retention | Yes | — | — | — | 6.7B | 31.6B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.1B | 251.3B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.0B | 197.8B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.7B | 182.0B | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.9B | 239.2B | 6 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.5B | 63.0B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.4B | 73.4B | 15 | |
| No | Retains prompts | No | — | Terms | Privacy | 2.2B | 4.3B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.1B | 125.4B | 9 | |
| No | Retains prompts | Yes | — | Terms | — | 1.6B | 690.4B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.5B | 128.4B | 7 | |
| No | Zero retention | No | — | Terms | Privacy | 1.5B | 51.5B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.2B | 31.9B | 5 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.1B | 52.0B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 749.5M | 31.7B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 493.3M | 1.9B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 181.0M | 12.0B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 158.0M | 6.5B | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 115.8M | 19.2B | 4 | |
| No | Retains prompts | Yes | United States | — | — | 101.7M | 5.7B | 1 | |
| No | Retains prompts | No | — | — | — | 54.5M | 638.0M | 16 | |
| No | Zero retention | No | United States | Terms | Privacy | 18.8M | 18.0B | 3 | |
| No | 30 days retention | No | — | Terms | Privacy | 8.8M | 301.5M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.4M | 62.6M | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 643.8K | 19.4M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |