| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 3.1T | 62.1T | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.4T | 64.7T | 64 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 2.3T | 50.9T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.1T | 38.9T | 98 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.6T | 40.7T | 23 | |
| No | Zero retention | Yes | China | Terms | — | 1.2T | 28.0T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 35.5T | 11 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 1.1T | 31.0T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.0T | 32.7T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 980.7B | 24.5T | 50 | |
| No | Zero retention | Yes | — | Terms | Privacy | 942.2B | 27.0T | 13 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 797.4B | 11.8T | 43 | |
| No | Zero retention | Yes | — | Terms | Privacy | 764.4B | 20.0T | 2 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 757.4B | 23.7T | 12 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 674.3B | 15.3T | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 669.6B | 11.8T | 73 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 668.9B | 15.2T | 46 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 659.4B | 14.6T | 9 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 647.7B | 21.9T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 615.9B | 15.3T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 603.2B | 20.4T | 17 | |
| No | Zero retention | Yes | — | Terms | Privacy | 562.3B | 4.6T | 24 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 550.8B | 5.7T | 19 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 509.6B | 13.5T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 388.4B | 12.6T | 11 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 382.2B | 28.6T | 9 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 381.8B | 9.1T | 35 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 347.8B | 7.1T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 338.2B | 11.3T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 296.1B | 5.7T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 274.8B | 9.2T | 38 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 262.2B | 8.5T | 42 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 250.1B | 6.3T | 15 | |
| No | Zero retention | Yes | France | Terms | Privacy | 237.0B | 2.0T | 29 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 234.4B | 7.5T | 4 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 222.2B | 7.1T | 20 | |
| No | Zero retention | No | United States | Terms | Privacy | 213.2B | 2.8T | 3 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 186.7B | 2.1T | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 184.9B | 2.6T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 167.1B | 4.3T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 167.0B | 7.7T | 16 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 156.0B | 2.6T | 14 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 143.7B | 5.6T | 27 | |
| No | Retains prompts | Yes | United States | — | Privacy | 134.6B | 4.5T | 29 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 125.9B | 3.2T | 8 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 121.1B | 4.7T | 42 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 120.2B | 170.8B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 109.3B | 2.5T | 37 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 105.7B | 1.5T | 11 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 94.4B | 1.5T | 19 | |
| No | Zero retention | No | — | — | — | 85.3B | 2.3T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 83.5B | 2.8T | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 77.9B | 2.5T | 2 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 57.6B | 815.8B | 11 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 53.4B | 6.9T | 4 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 43.7B | 573.6B | 7 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 37.6B | 1.1T | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 31.3B | 252.6B | 4 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 29.4B | 704.1B | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 24.7B | 691.8B | 9 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 24.3B | 1.1T | 5 | |
| No | Zero retention | No | — | Terms | Privacy | 24.2B | 1.1T | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 23.2B | 1.9T | 9 | |
| No | Retains prompts | Yes | South Korea | Terms | Privacy | 21.6B | 42.6B | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 19.7B | 439.0B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.1B | 568.0B | 8 | |
| No | Zero retention | No | United States | Terms | Privacy | 14.8B | 131.2B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 14.4B | 509.7B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 12.0B | 370.2B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 9.8B | 199.2B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 8.9B | 249.2B | 8 | |
| No | Retains prompts | No | — | Terms | Privacy | 8.7B | 347.2B | 12 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 4.1B | 102.2B | 13 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.8B | 88.1B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.9B | 36.8B | 10 | |
| No | Retains prompts | No | — | Terms | Privacy | 2.4B | 216.1B | 3 | |
| No | 30 days retention | No | China | — | Privacy | 2.2B | 48.6B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.9B | 39.6B | 5 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 1.1B | 29.9B | 6 | |
| No | Retains prompts | No | United States | Terms | Privacy | 888.3M | 17.8B | 1 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 558.5M | 4.9B | 1 | |
| No | Retains prompts | No | — | — | — | 526.0M | 11.4B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 415.3M | 18.7B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 357.7M | 11.2B | 4 | |
| No | 30 days retention | No | — | Terms | Privacy | 272.5M | 8.8B | 9 | |
| No | 30 days retention | No | — | Terms | Privacy | 225.1M | 40.9B | 3 | |
| No | Retains prompts | No | — | Terms | Privacy | 83.9M | 3.7B | 16 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 31.2M | 2.1B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 18.1M | 1.4B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 18.1M | 254.0M | 11 | |
| No | 30 days retention | No | — | Terms | Privacy | 11.7M | 326.7M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 7.0M | 290.7M | 7 | |
| No | Retains prompts | No | United States | Terms | Privacy | 6.8M | 80.1M | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 1.7M | 6.5B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 213.8K | 4.6M | 3 | |
| No | Zero retention | No | United States | Terms | Privacy | 107.4K | 125.4K | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 45.2K | 576.5K | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |