OpenAI: GPT-5 Codex
openai
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Run side-by-side checks for pricing, context window, and latency.
ilsp
Open-source CoRM model from ilsp — available for download and self-hosting on Hugging Face.
dr-housemd
Open-source GLM-4.7-Flash-exl3-3bpw-H4 model from dr-housemd — available for download and self-hosting on Hugging Face.
redhatai
Open-source gpt-oss-120b-essential model from redhatai — available for download and self-hosting on Hugging Face.
openai
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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....