| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | — | Terms | — | 3.7T | 19.0T | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.0T | 59.8T | 109 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.7T | 44.4T | 5 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.5T | 50.1T | 6 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.4T | 30.8T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 38.2T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 982.3B | 23.6T | 67 | |
| No | Zero retention | Yes | — | Terms | Privacy | 799.6B | 29.7T | 10 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 796.3B | 23.5T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 794.9B | 13.6T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 749.3B | 5.8T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 678.7B | 25.1T | 105 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 600.1B | 12.3T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 581.9B | 11.9T | 19 | |
| No | Zero retention | Yes | — | Terms | Privacy | 536.5B | 11.0T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 522.2B | 10.6T | 8 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 466.7B | 8.6T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 457.1B | 8.3T | 38 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 452.7B | 22.8T | 52 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 452.4B | 5.1T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 409.4B | 9.9T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 406.7B | 10.1T | 6 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 386.5B | 10.8T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 350.8B | 4.1T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 288.9B | 11.1T | 69 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 264.8B | 6.9T | 6 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 259.7B | 6.2T | 31 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 258.8B | 7.4T | 26 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 258.3B | 12.3T | 19 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 251.5B | 6.8T | 5 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 196.7B | 4.1T | 42 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 178.1B | 4.8T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 174.8B | 1.2T | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 171.6B | 5.1T | 4 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 165.9B | 4.8T | 11 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 164.9B | 8.2T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 150.6B | 6.5T | 4 | |
| No | Retains prompts | Yes | United States | — | Privacy | 148.2B | 6.4T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 132.7B | 2.4T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 117.6B | 2.2T | 5 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 105.7B | 1.4T | 10 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 99.5B | 3.0T | 15 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 96.2B | 2.1T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 88.6B | 2.2T | 38 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 80.9B | 1.2T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 67.2B | 2.7T | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 66.7B | 1.1T | 9 | |
| No | Zero retention | No | — | — | — | 64.5B | 1.3T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 64.3B | 2.6T | 20 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 60.6B | 1.8T | 2 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 46.4B | 824.4B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 38.9B | 480.7B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 28.8B | 565.3B | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 27.4B | 770.2B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 26.5B | 316.8B | 8 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 26.0B | 567.9B | 9 | |
| No | Zero retention | Yes | — | — | — | 25.4B | 293.5B | 4 | |
| No | Zero retention | No | — | Terms | Privacy | 25.1B | 233.7B | 2 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 19.9B | 527.9B | 10 | |
| No | Zero retention | No | United States | Terms | Privacy | 18.2B | 597.2B | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 17.5B | 1.0T | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 16.3B | 457.6B | 7 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 15.9B | 573.4B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.5B | 280.9B | 6 | |
| No | Retains prompts | No | — | Terms | Privacy | 14.7B | 412.1B | 9 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 13.4B | 907.3B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 12.7B | 237.2B | 4 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 11.3B | 186.5B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.7B | 161.9B | 2 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 6.6B | 105.7B | 4 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 3.3B | 70.2B | 16 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.2B | 3.8B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.2B | 95.3B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3B | 32.5B | 6 | |
| No | Retains prompts | No | — | Terms | Privacy | 1.1B | 40.3B | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.1B | 25.7B | 3 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 948.8M | 37.8B | 6 | |
| No | 30 days retention | No | China | — | Privacy | 674.6M | 953.6B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 583.2M | 24.1B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 573.1M | 28.4B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 204.6M | 5.9B | 8 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 169.4M | 23.9B | 4 | |
| No | Retains prompts | Yes | United States | — | — | 164.7M | 4.9B | 1 | |
| No | Retains prompts | No | — | — | — | 107.6M | 1.7B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 55.2M | 8.9B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 13.6M | 316.5M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 12.4M | 35.9M | 11 | |
| No | Zero retention | No | United States | Terms | Privacy | 11.9M | 23.8B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 11.3M | 90.7M | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 308.3K | 14.6M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 86.2K | 92.2K | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |