OpenAI: GPT-5.3-Codex Multimodal

By OpenAI

GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2. It achieves state-of-the-art results...

OpenRouter rank

#111

0.00% share

Context window

400K tokens

Input price

$1.75 / 1M tok

Output price

$14.0 / 1M tok

Modalities

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External ID

openai/gpt-5.3-codex

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