| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.3T | 39.1T | 92 | |
| No | Zero retention | Yes | China | Terms | Privacy | 2.2T | 39.4T | 5 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 1.3T | 9.9T | 13 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.1T | 11.8T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 894.3B | 24.6T | 63 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 680.2B | 20.5T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 621.2B | 20.1T | 71 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 533.2B | 30.7T | 2 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 506.1B | 10.2T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 429.3B | 16.8T | 99 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 425.8B | 10.8T | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 423.8B | 5.5T | 3 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 353.9B | 11.5T | 3 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 299.2B | 8.0T | 62 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 296.7B | 9.6T | 32 | |
| No | 30 day retention | No | United States | Terms | Privacy | 262.7B | 3.8T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 246.1B | 6.9T | 23 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 230.4B | 7.7T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 213.3B | 2.3T | 38 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 209.1B | 2.5T | 34 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 179.9B | 6.6T | 23 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 178.4B | 5.6T | 13 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 168.8B | 1.9T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 166.6B | 4.0T | 52 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 152.3B | 5.5T | 25 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 139.9B | 4.7T | 40 | |
| No | Zero retention | Yes | — | Terms | Privacy | 132.8B | 2.7T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 128.3B | 668.9B | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 119.9B | 1.6T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 116.5B | 1.8T | 12 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 94.7B | 2.4T | 3 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 92.8B | 2.7T | 12 | |
| No | Retains prompts | Yes | United States | — | Privacy | 86.9B | 2.7T | 34 | |
| No | Retains prompts | Yes | — | Terms | — | 83.6B | 3.3T | 1 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 52.0B | 841.3B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 49.7B | 1.2T | 33 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 46.8B | 1.0T | 18 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 45.4B | 372.8B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 44.1B | 646.0B | 4 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 40.2B | 646.4B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 34.8B | 774.8B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 34.7B | 1.1T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 34.6B | 586.9B | 22 | |
| No | Zero retention | Yes | — | Terms | Privacy | 32.8B | 540.2B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 29.8B | 307.0B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 28.5B | 1.5T | 4 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 26.5B | 452.1B | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 25.6B | 668.4B | 1 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 25.5B | 386.8B | 12 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 25.4B | 556.1B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.1B | 501.9B | 6 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 14.5B | 847.2B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 14.1B | 326.3B | 7 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 13.0B | 337.3B | 12 | |
| No | Zero retention | No | — | — | — | 12.9B | 84.4B | 4 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 12.8B | 205.7B | 6 | |
| No | Retains prompts | No | — | — | — | 12.1B | 285.0B | 3 | |
| No | Retains prompts | No | — | Terms | Privacy | 9.5B | 160.7B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.3B | 238.6B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.2B | 224.8B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.2B | 173.2B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.2B | 115.2B | 5 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.6B | 201.4B | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 4.6B | 65.4B | 7 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 4.3B | 71.2B | 14 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.7B | 16.3B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.4B | 92.8B | 8 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.9B | 54.6B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.9B | 43.9B | 7 | |
| No | 30 day retention | No | China | — | Privacy | 1.7B | 101.0B | 2 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 1.5B | 32.3B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.2B | 45.4B | 4 | |
| No | 30 day retention | No | — | Terms | Privacy | 223.4M | 7.4B | 6 | |
| No | Retains prompts | Yes | United States | — | — | 188.3M | 1.2B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 85.9M | 6.5B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 53.6M | 6.3B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 32.8M | 812.7M | 3 | |
| No | Retains prompts | No | — | — | — | 14.7M | 330.2M | 15 | |
| No | 30 day retention | No | — | Terms | Privacy | 12.4M | 327.1M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.6M | 331.3M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 657.1K | 11.7M | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |