| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 3.2T | 62.7T | 99 | |
| No | Zero retention | Yes | China | Terms | Privacy | 2.0T | 47.3T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.9T | 29.4T | 103 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.9T | 24.5T | 10 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.8T | 45.8T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3T | 40.1T | 22 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.3T | 26.7T | 12 | |
| No | Retains prompts | Yes | — | Terms | — | 1.1T | 32.1T | 3 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.0T | 32.9T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 932.2B | 29.4T | 8 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 880.7B | 24.8T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 808.4B | 17.5T | 19 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 758.1B | 4.5T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 737.0B | 25.0T | 53 | |
| No | Zero retention | Yes | — | Terms | Privacy | 715.3B | 17.6T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 712.0B | 24.1T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 643.0B | 12.3T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 622.3B | 10.5T | 8 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 542.8B | 13.4T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 506.3B | 8.8T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 476.2B | 13.0T | 44 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 451.4B | 11.2T | 71 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 437.0B | 13.0T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 403.3B | 11.4T | 11 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 349.8B | 7.8T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 348.3B | 9.3T | 41 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 325.3B | 3.9T | 11 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 323.6B | 9.3T | 44 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 306.9B | 13.6T | 40 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 303.6B | 34.6T | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 284.3B | 7.6T | 4 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 260.6B | 8.0T | 20 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 258.5B | 3.3T | 15 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 213.7B | 6.0T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 204.0B | 6.8T | 16 | |
| No | Zero retention | No | United States | Terms | Privacy | 180.5B | 564.1B | 3 | |
| No | Zero retention | Yes | — | — | — | 175.5B | 1.7T | 17 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 167.7B | 6.3T | 12 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 153.1B | 6.5T | 30 | |
| No | Retains prompts | Yes | United States | — | Privacy | 147.0B | 5.3T | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 140.5B | 2.0T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 135.8B | 2.6T | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 111.7B | 1.6T | 3 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 103.4B | 5.1T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 93.7B | 4.8T | 10 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 86.1B | 2.0T | 2 | |
| No | Zero retention | No | — | — | — | 78.3B | 2.1T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 76.5B | 2.5T | 37 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 67.9B | 2.1T | 30 | |
| No | Zero retention | Yes | — | Terms | Privacy | 61.1B | 2.1T | 9 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 60.6B | 2.9T | 16 | |
| No | Zero retention | No | — | Terms | Privacy | 53.2B | 957.0B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 50.5B | 995.1B | 9 | |
| No | Zero retention | No | United States | Terms | Privacy | 49.1B | 1.1T | 5 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 44.3B | 993.3B | 6 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 43.4B | 961.7B | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 41.3B | 1.9T | 20 | |
| No | Zero retention | Yes | — | Terms | Privacy | 23.4B | 464.3B | 8 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 22.2B | 602.0B | 10 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 21.4B | 351.2B | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 20.1B | 674.0B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.3B | 3.1T | 3 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 18.7B | 655.3B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 18.5B | 131.4B | 4 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 18.3B | 1.5T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 17.9B | 422.5B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 14.2B | 609.6B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 13.5B | 633.4B | 4 | |
| No | Retains prompts | No | — | Terms | Privacy | 12.5B | 405.2B | 12 | |
| No | Retains prompts | No | — | Terms | Privacy | 9.0B | 178.6B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.8B | 175.8B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 5.7B | 239.3B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.6B | 53.8B | 3 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 3.2B | 89.2B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.7B | 5.4B | 1 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.1B | 29.1B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 915.9M | 48.6B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 907.8M | 38.9B | 5 | |
| No | 30 days retention | No | — | Terms | Privacy | 800.7M | 34.7B | 2 | |
| No | Retains prompts | No | — | — | — | 694.3M | 5.8B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 376.9M | 13.5B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 289.1M | 7.5B | 9 | |
| No | 30 days retention | No | China | — | Privacy | 190.3M | 45.0B | 2 | |
| No | Retains prompts | No | — | — | — | 117.3M | 3.2B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 108.6M | 2.9B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 89.1M | 1.4B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 46.4M | 833.9M | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 38.3M | 12.4B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 12.2M | 310.8M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 9.6M | 197.8M | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 7.7M | 176.4M | 11 | |
| No | Retains prompts | No | United States | Terms | Privacy | 3.4M | 24.6M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 134.6K | 4.6M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 34.0K | 199.6K | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 0 | 243.0B | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |