| GPT-4o | May 2024 |
| GPT-4o mini | July 2024 |
| o1-preview & o1-mini | September 2024 |
| o1 (full version) | December 2024 |
| GPT-4.5 | February 2025 |
| GPT-5 | August 2025 |
| GPT-5.1 | November 2025 |
| GPT-5.2 | December 2025 |
| GPT-5.3-Codex | February 2025 |
| GPT-5.4 | March 2025 |
| GPT-5.5 | April 23, 2026 |
| GPT-5.6 | July 2026 |
| GPT-6 Astra | September 2026 |