| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.1T | 68.4T | 109 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 1.8T | 40.7T | 5 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.7T | 56.3T | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.6T | 31.1T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.5T | 33.9T | 19 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.2T | 26.5T | 8 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 1.1T | 18.4T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 915.1B | 9.9T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 905.7B | 25.2T | 59 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 872.3B | 23.3T | 65 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 848.2B | 22.7T | 100 | |
| No | Retains prompts | Yes | — | Terms | — | 647.6B | 912.3B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 526.5B | 5.6T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 507.1B | 9.9T | 68 | |
| No | Zero retention | Yes | — | Terms | Privacy | 493.1B | 8.2T | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 460.0B | 10.6T | 10 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 457.9B | 9.4T | 7 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 450.3B | 7.4T | 29 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 402.5B | 13.6T | 22 | |
| No | Zero retention | Yes | — | Terms | Privacy | 398.7B | 2.7T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 396.5B | 9.4T | 39 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 359.9B | 10.5T | 67 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 330.6B | 6.7T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 327.6B | 6.1T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 327.1B | 6.6T | 39 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 294.5B | 9.4T | 14 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 284.4B | 7.9T | 26 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 235.0B | 6.1T | 30 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 217.3B | 3.9T | 42 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 211.7B | 2.9T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 192.0B | 1.5T | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 189.3B | 9.7T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 183.4B | 4.3T | 6 | |
| No | Retains prompts | Yes | United States | — | Privacy | 183.2B | 6.3T | 29 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 176.2B | 4.8T | 13 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 172.8B | 5.2T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 136.7B | 7.1T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 130.5B | 2.1T | 7 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 122.0B | 1.8T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 113.5B | 1.9T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 94.3B | 2.1T | 37 | |
| No | Zero retention | No | — | — | — | 84.0B | 1.0T | 5 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 65.2B | 5.4T | 11 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 63.3B | 1.8T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 62.8B | 1.1T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 54.5B | 2.6T | 20 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 51.6B | 2.8T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 51.2B | 999.5B | 7 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 47.8B | 1.0T | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 43.1B | 1.1T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 28.1B | 460.8B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 26.1B | 511.0B | 9 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 24.6B | 795.8B | 6 | |
| No | Zero retention | Yes | — | — | — | 23.3B | 154.0B | 3 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 22.5B | 509.9B | 10 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 21.8B | 602.9B | 20 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 20.8B | 804.6B | 8 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 20.7B | 494.7B | 11 | |
| No | Retains prompts | No | — | Terms | Privacy | 18.2B | 397.3B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 17.0B | 226.9B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 16.7B | 361.8B | 3 | |
| No | Zero retention | No | — | Terms | Privacy | 15.7B | 145.1B | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 14.0B | 223.1B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 12.7B | 571.3B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 12.2B | 501.9B | 7 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 11.5B | 1.1T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 11.1B | 120.2B | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 7.6B | 200.9B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.7B | 161.5B | 2 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 4.0B | 82.8B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.6B | 119.7B | 9 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.4B | 66.4B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.2B | 32.5B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 1.0B | 25.3B | 4 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 903.9M | 43.3B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 689.1M | 29.4B | 4 | |
| No | Retains prompts | No | — | Terms | Privacy | 507.1M | 35.0B | 3 | |
| No | 30 days retention | No | — | Terms | Privacy | 500.5M | 21.4B | 2 | |
| No | 30 days retention | No | China | — | Privacy | 390.8M | 1.5T | 2 | |
| No | 30 days retention | No | — | Terms | Privacy | 204.3M | 6.0B | 8 | |
| No | Retains prompts | Yes | United States | — | — | 122.9M | 5.7B | 1 | |
| No | Retains prompts | No | — | — | — | 97.3M | 1.3B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 35.0M | 8.8B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.7M | 24.0B | 3 | |
| No | 30 days retention | No | — | Terms | Privacy | 9.0M | 317.9M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.6M | 3.5M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.5M | 73.9M | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 148.0K | 16.9M | 3 | |
| No | Retains prompts | No | — | — | — | 0 | 13.8B | 1 | |
| 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 |