| Trains | Retention | BYOK | Headquarters | Terms of service | Privacy policy | ||||
|---|---|---|---|---|---|---|---|---|---|
| No | Retains prompts | Yes | United States | Terms | Privacy | 3.3T | 52.4T | 98 | |
| No | Zero retention | Yes | China | Terms | Privacy | 2.9T | 57.2T | 5 | |
| No | 30 day retention | Yes | China | Terms | Privacy | 1.3T | 29.5T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.1T | 19.8T | 74 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 927.2B | 26.9T | 65 | |
| No | Zero retention | Yes | — | Terms | Privacy | 691.6B | 10.2T | 5 | |
| Yes | Retains prompts | Yes | United States | Terms | Privacy | 686.5B | 23.4T | 8 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 536.9B | 13.2T | 23 | |
| Yes | Retains prompts | Yes | China | Terms | Privacy | 526.3B | 10.8T | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 519.1B | 4.1T | 38 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 502.0B | 4.2T | 33 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 449.4B | 14.1T | 102 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 382.4B | 17.6T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 349.2B | 1.3T | 1 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 347.5B | 3.4T | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 326.2B | 2.0T | 5 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 308.7B | 9.4T | 62 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 288.9B | 3.7T | 2 | |
| No | 30 day retention | No | United States | Terms | Privacy | 273.6B | 5.8T | 9 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 256.5B | 17.3T | 23 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 226.6B | 5.6T | 23 | |
| No | 55 day retention | Yes | United States | Terms | Privacy | 212.0B | 5.5T | 27 | |
| No | Retains prompts | Yes | Singapore | Terms | Privacy | 193.9B | 5.4T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 189.2B | 9.8T | 32 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 187.8B | 6.9T | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 184.6B | 6.0T | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 182.0B | 4.7T | 57 | |
| No | Retains prompts | Yes | China | Terms | Privacy | 181.2B | 11.6T | 9 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 157.1B | 4.8T | 40 | |
| No | Retains prompts | Yes | United States | — | Privacy | 137.8B | 3.0T | 35 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 116.2B | 2.5T | 20 | |
| No | Zero retention | Yes | — | Terms | Privacy | 105.3B | 2.9T | 15 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 100.7B | 2.9T | 13 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 96.2B | 2.6T | 5 | |
| No | 30 day retention | No | China | — | Privacy | 90.7B | 254.7B | 2 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 77.1B | 936.1B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 77.0B | 1.7T | 5 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 65.7B | 841.0B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 58.7B | 1.3T | 33 | |
| No | Zero retention | Yes | — | Terms | Privacy | 58.0B | 659.6B | 6 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 51.6B | 1.4T | 13 | |
| No | Zero retention | Yes | Spain | Terms | Privacy | 49.8B | 747.2B | 12 | |
| No | 30 day retention | Yes | France | Terms | Privacy | 46.4B | 673.0B | 26 | |
| No | Zero retention | Yes | Singapore | Terms | Privacy | 35.4B | 2.0T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 34.2B | 1.0T | 22 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 32.5B | 529.1B | 7 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 31.9B | 966.5B | 17 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 28.9B | 815.3B | 8 | |
| No | Zero retention | No | — | — | — | 27.5B | 214.3B | 6 | |
| No | Zero retention | Yes | Sweden | Terms | Privacy | 27.0B | 668.7B | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 22.7B | 647.0B | 6 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 20.0B | 137.2B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 19.5B | 1.5T | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 18.4B | 423.8B | 9 | |
| No | Retains prompts | No | — | Terms | Privacy | 18.4B | 253.4B | 6 | |
| No | 30 day retention | Yes | United States | Terms | Privacy | 17.3B | 676.7B | 8 | |
| No | Zero retention | Yes | Netherlands | Terms | Privacy | 14.0B | 346.5B | 8 | |
| No | Retains prompts | Yes | United States | Terms | Privacy | 13.1B | 259.7B | 6 | |
| No | Zero retention | No | United States | Terms | Privacy | 12.0B | 271.2B | 3 | |
| No | Retains prompts | Yes | — | Terms | — | 9.5B | 2.2T | 1 | |
| No | Zero retention | Yes | — | Terms | Privacy | 8.8B | 111.1B | 9 | |
| No | Zero retention | Yes | — | Terms | Privacy | 8.7B | 86.6B | 2 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 5.3B | 198.0B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 3.5B | 138.2B | 2 | |
| No | Zero retention | No | Singapore | Terms | Privacy | 3.2B | 86.5B | 14 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 3.1B | 186.0B | 7 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 2.6B | 128.2B | 5 | |
| Yes | Retains prompts | Yes | — | Terms | Privacy | 2.0B | 50.1B | 2 | |
| No | 30 day retention | Yes | Israel | Terms | Privacy | 1.9B | 56.0B | 4 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 1.2B | 31.8B | 7 | |
| No | Retains prompts | No | — | — | — | 1.1B | 251.2B | 1 | |
| No | Zero retention | No | United States | Terms | Privacy | 605.8M | 34.3B | 4 | |
| No | Retains prompts | Yes | United States | — | — | 263.3M | 2.2B | 1 | |
| No | 30 day retention | No | — | Terms | Privacy | 228.2M | 7.4B | 7 | |
| No | Retains prompts | Yes | — | Terms | Privacy | 54.7M | 4.9B | 4 | |
| No | Zero retention | No | United States | Terms | Privacy | 53.2M | 981.9M | 3 | |
| No | Zero retention | Yes | United States | Terms | Privacy | 34.3M | 1.5B | 1 | |
| No | Retains prompts | No | — | — | — | 18.4M | 344.4M | 15 | |
| No | 30 day retention | No | — | Terms | Privacy | 14.5M | 321.1M | 4 | |
| No | Zero retention | Yes | — | Terms | Privacy | 1.7M | 273.9M | 5 | |
| No | Zero retention | Yes | — | Terms | Privacy | 517.8K | 16.9M | 3 | |
| No | Retains prompts | No | Indonesia | Terms | Privacy | 0 | 0 | 7 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 1 | |
| No | Retains prompts | No | United States | Terms | Privacy | 0 | 0 | 2 |