| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 1.5T | 15.4T | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 884.0B | 17.6T | 97 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 760.8B | 5.8T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 690.8B | 35.5T | 70 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 662.3B | 35.4T | 2 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 415.6B | 13.2T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 405.4B | 16.5T | 59 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 347.8B | 11.1T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 307.0B | 10.3T | 90 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 290.3B | 7.8T | 22 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 263.6B | 4.8T | 4 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 254.0B | 9.3T | 24 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 252.7B | 11.9T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 222.8B | 2.4T | 18 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 178.6B | 8.8T | 12 | |
| No | Retains prompts | Yes | — | — | — | 157.9B | 5.9T | 1 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 149.8B | 3.3T | 36 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 144.8B | 6.7T | 56 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 117.4B | 3.7T | 4 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 91.2B | 4.3T | 24 | |
| No | Zero retention | Yes | — | Terms | Privacy | 85.1B | 859.8B | 17 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 84.8B | 5.8T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 81.0B | 3.1T | 50 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 70.1B | 1.5T | 8 | |
| No | Retains prompts | Yes | United States | — | Privacy | 66.0B | 3.1T | 33 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 57.0B | 1.6T | 39 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 42.7B | 2.2T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 35.2B | 760.3B | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 31.1B | 1.0T | 30 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 30.4B | 898.2B | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 22.7B | 704.8B | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.0B | 628.0B | 10 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 17.9B | 1.1T | 11 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 16.6B | 441.7B | 9 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 16.0B | 300.9B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.7B | 671.7B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.1B | 257.3B | 1 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 14.1B | 209.4B | 2 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 12.0B | 410.4B | 4 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 11.4B | 605.9B | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 10.9B | 344.6B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.4B | 192.8B | 2 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 9.1B | 439.3B | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.1B | 194.1B | 8 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 6.9B | 389.9B | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.7B | 87.4B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 6.6B | 179.5B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.5B | 134.1B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.2B | 161.4B | 17 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.7B | 228.7B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.8B | 163.2B | 3 | |
| No | Retains prompts | No | — | — | — | 3.8B | 257.1B | 4 | |
| No | Retains prompts | No | — | Terms | Privacy | 3.6B | 95.7B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.4B | 600.7B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.9B | 98.5B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 2.7B | 38.6B | 3 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.7B | 189.0B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.5B | 85.0B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.1B | 65.7B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.8B | 57.8B | 4 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.7B | 51.3B | 4 | |
| No | 30 day retention | No | China | — | Privacy | 1.1B | 61.5B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 940.7M | 45.8B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 876.3M | 11.1B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 818.1M | 7.9B | 6 | |
| No | 30 day retention | No | United States | Terms | Privacy | 741.0M | 8.3B | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 313.7M | 8.7B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 223.0M | 21.0B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 129.4M | 5.2B | 5 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 126.4M | 3.0B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 29.3M | 600.1M | 2 | |
| No | Retains prompts | No | — | — | — | 12.0M | 246.4M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 11.3M | 223.0M | 2 | |
| No | Zero retention | Yes | — | Terms | Privacy | 9.5M | 25.7M | 5 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.0M | 222.7M | 3 | |
| No | Retains prompts | Yes | United States | — | — | 7.6M | 2.1B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 7.4M | 380.8M | 4 | |
| No | Retains prompts | Yes | Israel | Terms | Privacy | 5.0M | 467.6M | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 44.7K | 1.6M | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |