| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | United States | Terms | Privacy | 2.4T | 32.6T | 19 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.2T | 68.9T | 107 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.9T | 30.2T | 11 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.8T | 40.3T | 5 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.6T | 58.6T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3T | 22.1T | 101 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.2T | 25.9T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.2T | 25.2T | 76 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.0T | 17.5T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 934.8B | 23.5T | 65 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 676.7B | 9.2T | 12 | |
| No | Zero retention | Yes | — | Terms | Privacy | 488.7B | 7.7T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 488.0B | 5.9T | 6 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 480.4B | 13.7T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 438.5B | 10.4T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 428.8B | 9.6T | 68 | |
| No | Retains prompts | Yes | United States | — | Privacy | 424.1B | 6.3T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 410.2B | 6.6T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 409.5B | 5.1T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 378.6B | 9.2T | 39 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 378.3B | 7.2T | 29 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 353.9B | 6.6T | 5 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 340.3B | 10.5T | 67 | |
| No | Zero retention | Yes | — | Terms | Privacy | 310.6B | 2.3T | 16 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 283.7B | 9.3T | 7 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 227.0B | 10.0T | 14 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 226.7B | 7.9T | 26 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 225.5B | 9.7T | 19 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 223.4B | 6.0T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 189.8B | 4.2T | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 167.8B | 5.2T | 4 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 165.5B | 4.8T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 161.6B | 2.0T | 7 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 157.2B | 2.8T | 15 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 152.6B | 1.7T | 30 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 147.2B | 3.8T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 131.9B | 1.4T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 97.6B | 2.1T | 37 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 80.4B | 1.8T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 79.4B | 2.6T | 20 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 76.7B | 5.6T | 11 | |
| No | Zero retention | No | — | — | — | 67.8B | 934.3B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 67.4B | 2.9T | 5 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 67.4B | 1.0T | 10 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 65.3B | 1.9T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 53.1B | 7.1T | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 47.0B | 981.2B | 7 | |
| No | Retains prompts | Yes | — | Terms | — | 45.2B | 295.1B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 43.6B | 1.1T | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 35.2B | 568.8B | 3 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 33.3B | 1.1T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 31.0B | 460.6B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 27.4B | 812.2B | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 25.2B | 606.3B | 21 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 24.1B | 797.2B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 23.1B | 504.7B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 20.9B | 215.2B | 6 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 20.3B | 487.4B | 10 | |
| No | Retains prompts | No | — | Terms | Privacy | 20.0B | 392.1B | 9 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 17.6B | 485.9B | 12 | |
| No | Zero retention | Yes | — | — | — | 16.8B | 130.7B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 16.0B | 509.5B | 7 | |
| No | Zero retention | No | United States | Terms | Privacy | 14.2B | 349.4B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 13.9B | 214.1B | 3 | |
| No | Zero retention | No | — | Terms | Privacy | 12.1B | 129.5B | 1 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 10.3B | 1.2T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.3B | 113.5B | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 7.3B | 201.0B | 6 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 6.4B | 81.3B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.8B | 166.2B | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 2.9B | 24.4B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.7B | 121.0B | 9 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.3B | 67.3B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.2B | 32.2B | 6 | |
| No | Retains prompts | No | — | Terms | Privacy | 1.2B | 34.5B | 3 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 899.6M | 44.5B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 713.5M | 29.8B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 508.4M | 20.9B | 2 | |
| No | 30 days retention | No | China | — | Privacy | 408.6M | 1.5T | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 226.2M | 6.0B | 8 | |
| No | Retains prompts | Yes | United States | — | — | 210.9M | 5.7B | 1 | |
| No | Retains prompts | No | — | — | — | 85.8M | 1.2B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 24.6M | 9.0B | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 9.9M | 316.9M | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.6M | 24.1B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.7M | 73.4M | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 982.4K | 982.4K | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 303.6K | 17.4M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |