| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| Yes | Retains prompts | No | — | Terms | — | 2.0T | 2.0T | 1 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 1.8T | 30.3T | 2 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.1T | 31.6T | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.0T | 27.9T | 97 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 910.1B | 15.1T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 711.5B | 20.3T | 61 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 642.2B | 14.7T | 97 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 554.9B | 22.2T | 70 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 436.6B | 8.2T | 24 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 337.5B | 7.6T | 60 | |
| No | Zero retention | Yes | — | Terms | Privacy | 316.0B | 786.3B | 3 | |
| No | 30 day retention | No | United States | Terms | Privacy | 273.5B | 1.2T | 9 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 263.5B | 6.9T | 4 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 242.9B | 12.2T | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 229.2B | 7.0T | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 229.1B | 5.7T | 21 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 228.8B | 8.5T | 9 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 211.6B | 5.3T | 25 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 183.8B | 10.2T | 30 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 182.0B | 1.3T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 157.1B | 3.6T | 51 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 154.3B | 6.1T | 12 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 140.4B | 8.2T | 24 | |
| No | Zero retention | Yes | — | Terms | Privacy | 120.3B | 1.8T | 17 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 115.2B | 4.2T | 38 | |
| No | Retains prompts | Yes | United States | — | Privacy | 114.7B | 3.3T | 33 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 111.2B | 2.6T | 12 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 92.3B | 721.4B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 74.8B | 1.8T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 74.1B | 386.5B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 72.7B | 1.5T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 69.4B | 716.9B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 68.5B | 1.7T | 10 | |
| No | Retains prompts | Yes | — | — | — | 65.3B | 5.3T | 1 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 60.2B | 3.6T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 48.9B | 1.6T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 42.7B | 655.8B | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 39.6B | 57.9B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 39.4B | 1.1T | 31 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 31.1B | 1.0T | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 28.6B | 884.9B | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 26.9B | 689.6B | 10 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 23.9B | 496.5B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 23.4B | 288.5B | 20 | |
| No | Zero retention | Yes | — | Terms | Privacy | 21.5B | 402.3B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 18.3B | 319.7B | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 16.3B | 497.8B | 6 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 15.4B | 670.6B | 5 | |
| No | Retains prompts | No | — | — | — | 14.5B | 248.0B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 14.3B | 178.1B | 6 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 13.4B | 404.9B | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 12.7B | 238.9B | 7 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 11.8B | 312.0B | 20 | |
| No | Zero retention | No | United States | Terms | Privacy | 11.1B | 212.0B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 10.8B | 217.7B | 2 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 10.7B | 352.3B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 10.4B | 610.9B | 7 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 9.6B | 329.9B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.7B | 164.0B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 5.0B | 240.1B | 1 | |
| No | Retains prompts | No | — | Terms | Privacy | 4.4B | 103.4B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 4.4B | 71.5B | 8 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.8B | 51.8B | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.5B | 111.4B | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 2.3B | 33.8B | 7 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.8B | 53.7B | 4 | |
| No | 30 day retention | No | China | — | Privacy | 1.6B | 110.7B | 2 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 1.5B | 15.4B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 967.8M | 49.8B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 909.8M | 62.5B | 7 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 782.9M | 782.9M | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 359.1M | 14.8B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 349.6M | 6.8B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 184.2M | 7.9B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 55.4M | 6.8B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 43.2M | 543.0M | 3 | |
| No | Retains prompts | No | — | — | — | 13.6M | 283.5M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 9.8M | 171.6M | 5 | |
| No | 30 day retention | No | — | Terms | Privacy | 8.2M | 351.2M | 4 | |
| No | Retains prompts | Yes | United States | — | — | 5.6M | 732.4M | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 244.8K | 4.4M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |