GPT-5.3 Codex

openai/gpt-5.3-codex

codingagenticreasoningtoolscodex

Input price

1118.6 RODI/M

~ 1.75 USD/M

Output price

8948.5 RODI/M

~ 14 USD/M

Context

400K

Max output

128K

Input:textimage

Output:text

Providers & pricing

Provider	Input	Output	Free tier
Azure Default	1118.6 RODI/M~1.75 USD/M	8948.5 RODI/M	—
OpenAI	1118.6 RODI/M~1.75 USD/M	8948.5 RODI/M	—

Rate	RODI	USD (ref.)	Unit
In	1118.6	~ 1.75	USD/M · RODI/M
Out	8948.5	~ 14.00	USD/M · RODI/M
Cached	111.9	~ 0.175	USD/M · RODI/M

RODI prices include RodiumAi markup and upstream fees. USD figures are wholesale reference rates.

Streaming

Tool calling

Vision

JSON mode

Reasoning

GPT-5.3 Codex agentic coding model on Azure OpenAI Global Standard (Responses API).

Use the canonical model slug in your chat completion requests.

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