| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3T | 16.4T | 59 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.2T | 15.6T | 99 | |
| No | Zero retention | Yes | China | Terms | Privacy | 934.8B | 11.2T | 1 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 859.7B | 35.8T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 841.0B | 37.5T | 70 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 822.6B | 9.1T | 89 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 484.5B | 10.9T | 3 | |
| Yes | Retains prompts | No | United States | Terms | Privacy | 434.1B | 12.9T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 353.2B | 13.1T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 337.6B | 1.7T | 18 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 310.2B | 4.3T | 4 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 305.8B | 9.7T | 24 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 275.5B | 4.2T | 24 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 239.5B | 7.7T | 22 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 210.2B | 3.2T | 36 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 207.0B | 7.1T | 56 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 206.4B | 6.2T | 14 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 204.4B | 10.1T | 12 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 187.2B | 4.7T | 9 | |
| No | Retains prompts | Yes | — | — | — | 183.1B | 5.8T | 1 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 122.6B | 3.4T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 119.1B | 3.1T | 51 | |
| No | Retains prompts | Yes | United States | — | Privacy | 82.0B | 3.3T | 33 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 73.5B | 2.2T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 72.3B | 1.4T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 70.9B | 1.0T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 66.9B | 1.6T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 45.9B | 688.4B | 31 | |
| No | Zero retention | Yes | — | Terms | Privacy | 42.4B | 669.8B | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 40.7B | 207.3B | 1 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 40.2B | 864.7B | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 39.9B | 705.2B | 15 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 39.6B | 1.2T | 11 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 34.8B | 169.1B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 26.3B | 595.9B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 26.2B | 686.3B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 21.2B | 628.3B | 10 | |
| No | Zero retention | No | United States | Terms | Privacy | 13.8B | 160.0B | 4 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 12.9B | 409.8B | 18 | |
| No | Retains prompts | No | — | — | — | 12.8B | 256.8B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 11.4B | 153.4B | 17 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 11.0B | 453.2B | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 11.0B | 580.7B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 10.9B | 437.7B | 9 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 10.2B | 276.8B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 10.1B | 182.7B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 10.1B | 356.6B | 5 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 10.0B | 417.5B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.0B | 46.1B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.6B | 65.1B | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 6.5B | 204.6B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.9B | 154.3B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.4B | 137.5B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.0B | 165.7B | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.2B | 268.3B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.1B | 98.5B | 4 | |
| No | Retains prompts | No | — | Terms | Privacy | 3.3B | 91.0B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 2.5B | 34.4B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.4B | 87.5B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.3B | 68.6B | 8 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.0B | 46.7B | 8 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.7B | 50.4B | 4 | |
| No | 30 day retention | No | China | — | Privacy | 1.1B | 56.0B | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 702.2M | 5.7B | 6 | |
| No | 30 day retention | No | United States | Terms | Privacy | 690.3M | 7.4B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 602.3M | 22.8B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 404.8M | 10.6B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 387.4M | 3.2B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 241.2M | 5.3B | 5 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 224.8M | 9.4B | 1 | |
| No | Retains prompts | Yes | Israel | Terms | Privacy | 43.2M | 465.9M | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 20.5M | 281.5M | 2 | |
| No | Retains prompts | Yes | United States | — | — | 11.4M | 2.3B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 11.3M | 192.7M | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 10.0M | 214.9M | 2 | |
| No | 30 day retention | No | — | Terms | Privacy | 8.6M | 392.3M | 4 | |
| No | Retains prompts | No | — | — | — | 7.3M | 237.5M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.3M | 8.9M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 39.9K | 1.4M | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |