GPT-5 Codex
by OpenAI
GPT-5-Codex is a specialized version of GPT-5 optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independen
Models
GPT-5 Codex
Added 10 July 2026
Overview
GPT-5-Codex is a specialized version of GPT-5 optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....
How to use / API access
Call via OpenRouter with model id `openai/gpt-5-codex`.
- openrouter ·
openai/gpt-5-codexDocs
OpenRouter id: openai/gpt-5-codex
Benchmarks
- Design Arena mobileapps (other): 1132 elo · #27
- Design Arena webapps (other): 1138 elo · #26
Notes
GPT-5 Codex is listed in the EDNA Models directory from the OpenRouter catalogue.
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