| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Zero retention | Yes | China | Terms | Privacy | 1.5T | 13.9T | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 911.6B | 17.0T | 99 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 730.0B | 36.3T | 70 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 676.3B | 35.7T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 573.0B | 10.2T | 90 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 441.3B | 5.1T | 9 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 406.0B | 13.3T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 402.1B | 16.5T | 59 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 370.1B | 11.0T | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 271.2B | 4.7T | 4 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 256.5B | 9.4T | 24 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 237.8B | 12.2T | 30 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 236.5B | 7.7T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 203.4B | 2.1T | 18 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 180.2B | 9.2T | 12 | |
| No | Retains prompts | Yes | — | — | — | 163.6B | 5.9T | 1 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 125.4B | 6.8T | 56 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 111.9B | 4.3T | 24 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 99.0B | 3.2T | 36 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 93.2B | 3.6T | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 89.7B | 793.1B | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 78.6B | 3.1T | 50 | |
| No | Retains prompts | Yes | United States | — | Privacy | 62.0B | 3.2T | 33 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 54.5B | 1.5T | 8 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 52.4B | 2.2T | 10 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 45.3B | 6.0T | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 45.2B | 1.6T | 39 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 38.5B | 738.9B | 31 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 30.8B | 1.0T | 29 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 30.6B | 886.2B | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 26.9B | 708.5B | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 20.4B | 242.2B | 1 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 17.1B | 174.5B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 16.4B | 626.7B | 10 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 15.5B | 292.6B | 8 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 14.6B | 1.1T | 11 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 12.8B | 608.8B | 5 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 12.7B | 438.4B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 12.0B | 677.3B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 11.6B | 184.2B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 11.1B | 599.6B | 7 | |
| No | Retains prompts | No | — | — | — | 10.3B | 261.3B | 4 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 10.2B | 410.8B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 9.6B | 347.9B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 8.2B | 160.7B | 17 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 8.1B | 445.2B | 13 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 7.5B | 195.3B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.2B | 80.6B | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 7.1B | 192.1B | 8 | |
| No | 30 day retention | No | China | — | Privacy | 6.2B | 61.6B | 2 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 5.5B | 395.8B | 18 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 4.7B | 133.8B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.7B | 164.3B | 3 | |
| No | Retains prompts | No | — | Terms | Privacy | 3.5B | 94.1B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.5B | 98.5B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.0B | 55.9B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.8B | 85.9B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 2.8B | 241.9B | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.6B | 193.9B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.5B | 10.5B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 2.2B | 37.0B | 3 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.9B | 66.5B | 8 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.7B | 51.0B | 4 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 1.0B | 46.3B | 9 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 632.1M | 7.1B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 319.3M | 21.9B | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 299.4M | 572.7M | 2 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 168.8M | 8.8B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 109.8M | 5.2B | 5 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 46.5M | 3.0B | 1 | |
| No | 30 day retention | No | United States | Terms | Privacy | 27.1M | 7.5B | 1 | |
| No | Retains prompts | Yes | Israel | Terms | Privacy | 13.6M | 473.1M | 1 | |
| No | Retains prompts | Yes | United States | — | — | 12.5M | 2.2B | 1 | |
| No | Retains prompts | No | — | — | — | 8.7M | 239.8M | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 8.2M | 219.0M | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 7.8M | 213.8M | 3 | |
| No | 30 day retention | No | — | Terms | Privacy | 6.5M | 384.3M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 3.9M | 16.2M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 42.9K | 1.5M | 2 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |