FAQ
Common questions about GPT-5 Codex.
What is the GPT-5 Codex release date?
GPT-5 Codex was released on September 15, 2025 by OpenAI.
Who created GPT-5 Codex?
GPT-5 Codex was created by OpenAI.
What is the license for GPT-5 Codex?
GPT-5 Codex is released under the Proprietary license.
What is the knowledge cutoff date for GPT-5 Codex?
GPT-5 Codex has a knowledge cutoff of September 2024. This means the model was trained on data up to this date and may not have information about events after this time.