"This new engine makes the programming assistant faster, more reliable, and more independent, both in short sessions and in complex processes lasting several hours. Since the launch of Codex CLI and the web version earlier this year, the tool has become a permanent programming partner. Thanks to integration with ChatGPT accounts, developers can now seamlessly switch between local and cloud environments without losing context. Codex is available in the terminal, IDEs, GitHub, and the ChatGPT app and is included in all paid ChatGPT subscriptions."
"GPT-5-Codex has been trained on additional coding data and is primarily focused on realistic software engineering tasks. The model can set up projects from scratch, extend features, perform large-scale refactors, and provide code reviews. In benchmarks, it achieved a score of 51.3 percent in refactoring, more than seventeen points higher than GPT-5. During internal tests, the model worked independently for more than seven hours, detecting its own errors, performing tests, and correcting results."
GPT-5-Codex is a GPT-5 variant trained for software development. The engine provides faster, more reliable, and more autonomous coding assistance for short interactions and multi‑hour workflows. Integration with ChatGPT accounts enables seamless switching between local and cloud environments without losing context. Codex runs in terminals, IDEs, GitHub, and the ChatGPT app and is included in paid subscriptions. The model handles realistic engineering tasks: project setup, feature extensions, large‑scale refactors, and code reviews. Benchmarks report a 51.3 percent refactoring score, over seventeen points above GPT‑5. The model can operate autonomously for hours, detect errors, run tests, and correct results. Updated tools include an open‑source CLI that accepts images, tracks task progress, and can call external tools such as web search.
Read at Techzine Global
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