OpenAI Releases GPT-5-Codex: Specialized AI Model for Agentic Coding Tasks
By
wertyk
Leave it on the tray for the seagulls.
Summary
OpenAI has released GPT-5-Codex, a specialized version of GPT-5 optimized for agentic coding tasks. The model is trained using reinforcement learning on real-world coding tasks to generate human-like code that adheres to instructions and iteratively runs tests until passing results. It's available through multiple platforms including Codex CLI, IDE extensions, cloud services, GitHub, and ChatGPT mobile app. The model dynamically adjusts its thinking effort based on task complexity, working quickly on simple tasks while spending more time on complex ones.
Key quotes
· 5 pulledGPT-5-Codex is a version of GPT-5 optimized for agentic coding in Codex
trained using reinforcement learning on real-world coding tasks in a variety of environments
generate code that closely mirrors human style and PR preferences, adhere precisely to instructions
iteratively run tests until passing results are achieved
adjusts its thinking effort more dynamically based on task complexity
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