GPT-5 Codex

OpenAI · 4 versions

Each version keeps its own price and context.

Model	$ / 1M in / out	Context	Open weights
GPT-5-CodexOpenAI model	—	—	No	OpenRouter
GPT-5.1-CodexOpenAI model	$1.25 / $10	400K	No	OpenRouter
GPT-5.2-CodexOpenAI model	$1.75 / $14	400K	No	OpenRouter
GPT-5.3-CodexOpenAI model	$1.75 / $14	400K	No	OpenRouter