openai/gpt-5-codexGPT-5-Codex is a specialized version of GPT-5 optimized for software engineering and coding workflows.
Scores on standardized evaluations. Higher is better — and rank shows where GPT‑5-Codex lands among all models tracked on Model Beat.
Novel ML problem-solving
Multi-step agentic tasks
Command-line agentic tasks
Model & benchmark data from Epoch AI (CC BY); pricing, specs & descriptions from OpenRouter.