| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 2.5T | 67.4T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.5T | 65.4T | 97 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.2T | 19.2T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 6.1T | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 996.0B | 14.7T | 103 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 910.5B | 29.8T | 2 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 898.9B | 24.1T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 825.2B | 23.1T | 74 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 721.5B | 13.5T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 606.9B | 26.1T | 64 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 552.5B | 15.4T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 471.3B | 9.3T | 31 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 400.5B | 20.7T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 388.3B | 4.6T | 8 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 329.7B | 10.0T | 64 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 322.6B | 6.5T | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 255.3B | 5.4T | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 218.9B | 463.8B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 193.6B | 6.1T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 189.8B | 3.7T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 181.2B | 5.0T | 57 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 169.8B | 5.2T | 27 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 161.6B | 6.7T | 9 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 149.1B | 5.1T | 13 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 147.7B | 17.8T | 23 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 147.3B | 10.6T | 10 | |
| No | Retains prompts | Yes | United States | — | Privacy | 147.3B | 3.6T | 35 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 143.7B | 7.3T | 32 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 135.6B | 5.2T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 124.2B | 5.5T | 39 | |
| No | 30 days retention | No | China | — | Privacy | 122.7B | 1.1T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 104.1B | 3.3T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 80.9B | 1.8T | 7 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 79.3B | 4.1T | 40 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 77.2B | 1.8T | 14 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 76.9B | 1.6T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 59.8B | 301.2B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 55.2B | 1.7T | 36 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 54.5B | 2.5T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 52.5B | 835.3B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 41.9B | 2.7T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 40.3B | 2.0T | 20 | |
| No | Zero retention | Yes | — | Terms | Privacy | 30.5B | 1.0T | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 27.8B | 200.9B | 2 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 27.2B | 1.8T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 25.4B | 766.8B | 4 | |
| No | Zero retention | No | — | — | — | 23.8B | 442.6B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 22.3B | 4.3T | 3 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 22.1B | 730.8B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 21.7B | 843.8B | 8 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 19.8B | 1.1T | 10 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 19.5B | 949.0B | 7 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 17.6B | 154.2B | 7 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 16.2B | 535.3B | 8 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 15.2B | 1.0T | 25 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 14.5B | 361.7B | 9 | |
| No | Zero retention | Yes | — | Terms | Privacy | 13.9B | 613.4B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 13.3B | 849.5B | 18 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 13.1B | 254.0B | 7 | |
| No | Retains prompts | No | — | Terms | Privacy | 12.3B | 333.7B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.5B | 412.8B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.2B | 251.5B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.7B | 130.0B | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.1B | 149.5B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 4.9B | 256.8B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.4B | 188.0B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.2B | 126.3B | 9 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.9B | 85.1B | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.9B | 187.9B | 7 | |
| No | Zero retention | No | — | Terms | Privacy | 2.7B | 14.9B | 1 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.5B | 56.1B | 2 | |
| No | Retains prompts | Yes | — | Terms | — | 1.9B | 1.1T | 1 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.8B | 55.5B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.4B | 28.6B | 5 | |
| No | 30 days retention | No | — | Terms | Privacy | 1.4B | 7.5B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 722.6M | 17.2B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 643.5M | 33.0B | 7 | |
| No | Retains prompts | No | — | — | — | 476.1M | 180.2B | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 140.7M | 6.8B | 7 | |
| No | Retains prompts | Yes | United States | — | — | 64.4M | 4.2B | 1 | |
| No | Retains prompts | No | — | — | — | 11.7M | 436.6M | 15 | |
| No | 30 days retention | No | — | Terms | Privacy | 9.1M | 300.7M | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 7.3M | 2.1B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.9M | 1.1B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.7M | 195.4M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 632.8K | 20.0M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |