| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 1.9T | 60.8T | 99 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.6T | 22.9T | 10 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.4T | 44.7T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4T | 28.6T | 104 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.1T | 46.2T | 6 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 961.7B | 32.9T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 919.8B | 40.2T | 22 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 887.7B | 24.1T | 14 | |
| No | Zero retention | Yes | — | Terms | Privacy | 828.6B | 26.2T | 12 | |
| No | Retains prompts | Yes | — | Terms | — | 826.2B | 31.0T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 806.1B | 28.7T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 617.9B | 16.7T | 19 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 602.0B | 3.8T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 549.6B | 24.8T | 53 | |
| No | Zero retention | Yes | — | Terms | Privacy | 529.3B | 17.3T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 522.8B | 10.0T | 8 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 508.2B | 23.7T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 431.7B | 8.4T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 400.5B | 11.8T | 22 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 393.9B | 13.0T | 29 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 392.9B | 12.8T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 341.7B | 11.2T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 332.1B | 12.7T | 44 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 324.0B | 11.1T | 71 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 302.9B | 9.4T | 41 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 268.7B | 7.6T | 30 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 260.9B | 7.4T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 258.9B | 13.8T | 47 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 248.1B | 6.2T | 12 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 245.2B | 35.8T | 3 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 243.0B | 8.0T | 20 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 234.9B | 6.6T | 16 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 215.6B | 9.3T | 44 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 191.9B | 3.1T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 142.3B | 3.6T | 11 | |
| No | Retains prompts | Yes | United States | — | Privacy | 131.5B | 5.4T | 31 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 120.6B | 5.9T | 15 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 113.6B | 6.5T | 30 | |
| No | Zero retention | No | United States | Terms | Privacy | 111.2B | 383.5B | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 108.4B | 1.5T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 108.4B | 1.8T | 22 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 81.2B | 2.0T | 2 | |
| No | Zero retention | Yes | — | — | — | 78.9B | 1.5T | 17 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 71.5B | 5.1T | 43 | |
| No | Zero retention | No | — | — | — | 65.7B | 2.0T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 63.3B | 2.6T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 57.6B | 2.5T | 37 | |
| No | Zero retention | Yes | — | Terms | Privacy | 57.5B | 2.0T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 51.6B | 947.6B | 9 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 43.4B | 2.8T | 14 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 43.1B | 2.1T | 30 | |
| No | Zero retention | No | — | Terms | Privacy | 42.1B | 908.6B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 41.6B | 4.9T | 10 | |
| No | Zero retention | No | United States | Terms | Privacy | 36.5B | 1.1T | 5 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 33.7B | 969.5B | 6 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 32.7B | 929.1B | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 25.3B | 1.9T | 20 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 24.6B | 596.4B | 11 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 20.2B | 333.1B | 7 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 15.9B | 663.4B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 15.9B | 453.7B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 15.7B | 625.0B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.2B | 614.2B | 8 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 14.9B | 673.2B | 9 | |
| No | Zero retention | No | United States | Terms | Privacy | 13.5B | 113.0B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 13.0B | 1.5T | 5 | |
| No | Retains prompts | No | — | Terms | Privacy | 12.5B | 406.1B | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 11.8B | 3.1T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 11.1B | 411.9B | 7 | |
| No | Retains prompts | No | — | Terms | Privacy | 6.5B | 170.3B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.1B | 174.1B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 5.1B | 237.6B | 7 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.0B | 50.2B | 3 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.2B | 88.4B | 16 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 993.3M | 29.1B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 952.9M | 39.1B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 910.9M | 50.0B | 10 | |
| No | 30 days retention | No | China | — | Privacy | 402.1M | 46.5B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 385.5M | 2.7B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 342.1M | 13.6B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 297.1M | 35.0B | 2 | |
| No | Retains prompts | No | — | — | — | 267.2M | 5.1B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 254.9M | 2.9B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 236.7M | 7.4B | 9 | |
| No | Zero retention | No | United States | Terms | Privacy | 124.0M | 1.3B | 4 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 90.0M | 12.5B | 4 | |
| No | Retains prompts | No | — | — | — | 51.4M | 3.1B | 16 | |
| No | Zero retention | No | United States | Terms | Privacy | 27.8M | 787.5M | 1 | |
| No | 30 days retention | No | — | Terms | Privacy | 11.3M | 308.6M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 9.5M | 168.7M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 9.0M | 192.2M | 7 | |
| No | Retains prompts | No | United States | Terms | Privacy | 3.0M | 21.3M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 105.4K | 4.7M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 59.8K | 165.7K | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 0 | 243.0B | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |