| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| Yes | Retains prompts | Yes | China | Terms | Privacy | 2.8T | 36.9T | 2 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 2.6T | 57.6T | 100 | |
| No | Zero retention | Yes | China | Terms | Privacy | 1.9T | 44.7T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4T | 24.8T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.4T | 43.3T | 23 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.3T | 17.3T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 26.4T | 106 | |
| No | Retains prompts | Yes | — | Terms | — | 1.0T | 27.0T | 2 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 941.0B | 32.6T | 11 | |
| No | Zero retention | Yes | — | Terms | Privacy | 927.5B | 16.7T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 864.1B | 25.0T | 53 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 850.0B | 21.0T | 14 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 756.4B | 22.3T | 12 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 737.6B | 14.2T | 19 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 701.2B | 10.1T | 10 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 642.1B | 12.3T | 29 | |
| No | Zero retention | Yes | — | Terms | Privacy | 597.8B | 26.6T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 590.4B | 8.0T | 8 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 573.8B | 7.3T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 461.8B | 10.8T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 446.0B | 12.1T | 42 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 421.1B | 12.2T | 8 | |
| No | 30 days retention | Yes | China | Terms | Privacy | 409.7B | 41.1T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 372.5B | 12.0T | 71 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 346.1B | 9.5T | 44 | |
| No | 55 days retention | Yes | United States | Terms | Privacy | 335.6B | 7.3T | 30 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 312.6B | 6.5T | 30 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 279.2B | 14.6T | 47 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 275.0B | 5.8T | 15 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 267.6B | 7.0T | 4 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 239.8B | 2.1T | 4 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 230.2B | 6.2T | 12 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 225.1B | 8.5T | 19 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 221.3B | 6.1T | 14 | |
| No | Zero retention | Yes | — | Terms | Privacy | 206.9B | 1.9T | 9 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 197.3B | 5.2T | 43 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 188.2B | 2.5T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 185.0B | 10.1T | 41 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 164.0B | 3.1T | 11 | |
| No | Retains prompts | Yes | United States | — | Privacy | 149.5B | 6.3T | 31 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 145.0B | 4.6T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 138.9B | 2.6T | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 126.6B | 1.5T | 21 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 126.0B | 3.2T | 5 | |
| No | Zero retention | Yes | — | — | — | 118.1B | 1.2T | 10 | |
| No | Zero retention | No | United States | Terms | Privacy | 114.6B | 1.1T | 3 | |
| No | Zero retention | No | — | — | — | 106.4B | 1.9T | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 104.4B | 5.2T | 10 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 86.2B | 2.4T | 37 | |
| Yes | Retains prompts | No | — | Terms | Privacy | 83.3B | 1.9T | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 83.1B | 967.8B | 6 | |
| No | 30 days retention | Yes | United States | Terms | Privacy | 71.5B | 3.0T | 15 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 60.2B | 2.0T | 20 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 55.9B | 731.5B | 9 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 49.1B | 828.9B | 17 | |
| No | Zero retention | No | — | Terms | Privacy | 46.4B | 766.0B | 3 | |
| No | 30 days retention | Yes | France | Terms | Privacy | 44.1B | 2.3T | 30 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 38.7B | 1.5T | 5 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 37.8B | 939.7B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 27.1B | 683.6B | 9 | |
| No | Zero retention | Yes | — | Terms | Privacy | 21.4B | 579.7B | 4 | |
| No | Zero retention | No | Indonesia | Terms | Privacy | 19.8B | 583.4B | 11 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 19.1B | 728.9B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 18.9B | 645.0B | 8 | |
| No | Zero retention | Yes | — | Terms | Privacy | 16.5B | 459.2B | 8 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 16.5B | 250.6B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 15.9B | 386.3B | 7 | |
| No | Retains prompts | No | — | Terms | Privacy | 14.6B | 415.2B | 12 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 12.5B | 190.0B | 1 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 9.4B | 228.8B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 9.4B | 9.4B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.7B | 174.6B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 4.8B | 77.3B | 2 | |
| No | Retains prompts | No | — | Terms | Privacy | 4.6B | 172.9B | 4 | |
| No | 30 days retention | No | China | — | Privacy | 4.3B | 40.7B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 2.9B | 84.3B | 16 | |
| No | Zero retention | Yes | — | Terms | Privacy | 2.9B | 39.0B | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.5B | 36.1B | 6 | |
| No | Zero retention | Yes | — | Terms | Privacy | 953.9M | 58.2B | 10 | |
| No | 30 days retention | No | — | Terms | Privacy | 943.3M | 26.4B | 2 | |
| No | 30 days retention | Yes | Israel | Terms | Privacy | 909.9M | 30.4B | 6 | |
| No | Retains prompts | No | — | — | — | 795.9M | 3.0B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 429.0M | 15.5B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 320.8M | 882.1M | 1 | |
| No | Retains prompts | No | — | — | — | 285.9M | 3.0B | 16 | |
| No | 30 days retention | No | — | Terms | Privacy | 236.9M | 7.2B | 9 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 147.1M | 8.6B | 2 | |
| No | Zero retention | No | United States | Terms | Privacy | 134.6M | 7.0B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 96.6M | 412.6M | 1 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 67.5M | 13.5B | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 15.4M | 171.0M | 7 | |
| No | 30 days retention | No | — | Terms | Privacy | 8.9M | 308.0M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 5.9M | 137.4M | 11 | |
| No | Retains prompts | No | United States | Terms | Privacy | 2.1M | 10.7M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 343.5K | 6.9M | 3 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 5.3K | 5.3K | 3 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |