| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.4T | 69.2T | 105 | |
| No | Zero retention | Yes | China | Terms | Privacy | 2.1T | 71.9T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.5T | 12.5T | 18 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.1T | 28.5T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 24.8T | 77 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.1T | 22.0T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 794.8B | 26.4T | 62 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 714.0B | 16.1T | 111 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 676.1B | 6.3T | 8 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 600.1B | 23.3T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 499.5B | 5.2T | 4 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 473.1B | 14.4T | 2 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 447.5B | 10.5T | 67 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 406.1B | 15.5T | 23 | |
| No | Zero retention | Yes | — | Terms | Privacy | 363.3B | 1.4T | 1 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 361.0B | 7.5T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 348.3B | 5.3T | 62 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 313.9B | 6.8T | 10 | |
| Yes | Retains prompts | No | — | Terms | — | 288.0B | 11.0T | 1 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 283.3B | 21.6T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 279.6B | 7.5T | 36 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 278.7B | 17.8T | 23 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 266.4B | 5.6T | 25 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 251.4B | 9.5T | 19 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 245.2B | 5.9T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 233.9B | 6.1T | 39 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 225.7B | 5.5T | 29 | |
| No | Retains prompts | Yes | United States | — | Privacy | 187.0B | 3.9T | 34 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 184.6B | 8.9T | 10 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 183.7B | 6.0T | 4 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 170.6B | 5.2T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 161.9B | 4.1T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 117.0B | 1.9T | 7 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 114.9B | 4.0T | 41 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 110.7B | 2.5T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 92.5B | 542.3B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 84.1B | 2.0T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 83.6B | 1.8T | 36 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 83.3B | 2.5T | 20 | |
| No | Zero retention | Yes | — | Terms | Privacy | 72.8B | 2.7T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 69.5B | 3.4T | 5 | |
| No | 30 days retention | No | China | — | Privacy | 59.6B | 1.4T | 4 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 58.7B | 1.8T | 2 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 44.2B | 1.2T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 41.0B | 934.4B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 40.1B | 867.2B | 8 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 35.6B | 1.7T | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 34.9B | 1.1T | 6 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 31.4B | 768.2B | 6 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 26.7B | 508.1B | 10 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 25.4B | 984.9B | 7 | |
| No | Zero retention | No | — | — | — | 24.8B | 520.2B | 4 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 24.2B | 403.1B | 9 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 21.9B | 215.6B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 17.5B | 639.9B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 17.2B | 621.9B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 16.1B | 832.0B | 18 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 12.9B | 1.0T | 24 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 12.8B | 420.8B | 6 | |
| No | Retains prompts | No | — | Terms | Privacy | 12.1B | 361.7B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 11.7B | 268.8B | 4 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 10.6B | 261.7B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 10.2B | 285.4B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 8.9B | 243.9B | 2 | |
| No | Zero retention | No | — | Terms | Privacy | 8.3B | 32.5B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 7.9B | 171.1B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.2B | 189.4B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.7B | 141.6B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.9B | 132.0B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.5B | 161.9B | 7 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.8B | 59.4B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 2.6B | 4.6B | 4 | |
| No | Zero retention | Yes | — | — | — | 2.1B | 2.1B | 1 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.1B | 80.7B | 14 | |
| No | Retains prompts | Yes | — | Terms | — | 1.8B | 929.0B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.4B | 30.2B | 5 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.4B | 55.7B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1B | 33.3B | 7 | |
| No | 30 days retention | No | — | Terms | Privacy | 461.9M | 9.8B | 1 | |
| No | Retains prompts | Yes | United States | — | — | 344.8M | 5.2B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 193.3M | 6.8B | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 126.7M | 18.5B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 32.5M | 1.1B | 1 | |
| No | Retains prompts | No | — | — | — | 28.8M | 478.3M | 16 | |
| No | 30 days retention | No | — | Terms | Privacy | 9.2M | 302.1M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.2M | 182.5M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 564.5K | 20.6M | 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 |