* This is a translation of part of the official blog.
https://openai.com/index/introducing-gpt-5-3-codex/
Introducing GPT-5.3-Codex, a new model that takes Codex's potential to the next level.
This release is the highest-performing agent-based coding model to date. GPT-5.3-Codex integrates the cutting-edge coding capabilities of GPT-5.2-Codex with the reasoning and specialized knowledge capabilities of GPT-5.2 into a single model, and it's also 25% faster. This allows for research, tool utilization, and execution of complex long-term projects. Additionally, you can interact with GPT-5.3-Codex as if collaborating with a colleague, maintaining context while issuing instructions or interacting as it works.
[The rest of the text is omitted]
* Post from the OpenAI Developers X(Twitter) account
https://x.com/OpenAIDevs/status/2019474374089490690
