GPT-5.2 Pro

language modelOpenAI

GPT-5.2 Pro is OpenAI’s most advanced model, offering major improvements in agentic coding and long context performance over GPT-5 Pro. It is optimized for complex tasks that require step-by-step reasoning,...

Key facts

Made byOpenAI
Typelanguage model
ReleasedDecember 10, 2025
Reads at once400,000 tokens
Price (API, per million tokens)$21 in · $168 out
Input → outputimage, text, file → text

Questions about GPT-5.2 Pro

Who makes GPT-5.2 Pro?

GPT-5.2 Pro is made by OpenAI.

When was GPT-5.2 Pro released?

We first saw GPT-5.2 Pro listed on December 10, 2025.

How much does GPT-5.2 Pro cost?

Through OpenRouter it costs $21 per million input tokens and $168 per million output tokens. Prices change, so check the provider before you build on it.

How much text can GPT-5.2 Pro read at once?

Up to 400,000 tokens, roughly 300K words.

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Modelcast collects this page automatically from public sources (OpenRouter). Facts are copied from those sources, not written by the maker. Not affiliated with OpenAI.