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OpenAI: GPT-5.2-Codex API Pricing

OpenAI: GPT-5.2-Codex is an API model from openai. It costs $1.75 per 1M input tokens and $14 per 1M output tokens, with cached input at $0.175. Its context window is 400,000 tokens with up to 128,000 output tokens. A workload of 10M input + 2M output tokens costs about $45.5 per month.
Input
$1.75
per 1M tokens
Output
$14
per 1M tokens
Cached input
$0.175
per 1M tokens
Context window
400K
400,000 tokens
Blended (80/20)
$4.2
per 1M tokens

GPT-5.2-Codex is an upgraded version of GPT-5.1-Codex optimized for software engineering and coding workflows. It is designed for both interactive development sessions and long, independent execution of complex engineering tasks....

How much does OpenAI: GPT-5.2-Codex cost for a real workload?

At 10M input + 2M output tokens per month, OpenAI: GPT-5.2-Codex costs about $45.5 ($17.5 input + $28 output). Try your own volumes in the cost calculator.

What are cheaper alternatives to OpenAI: GPT-5.2-Codex?

Compare OpenAI: GPT-5.2-Codex with other models

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Frequently asked questions

How much does OpenAI: GPT-5.2-Codex cost?

OpenAI: GPT-5.2-Codex costs $1.75 per 1M input tokens and $14 per 1M output tokens (list price, snapshot October 21, 2026). At 10M input + 2M output tokens per month that is about $45.5.

What is the context window of OpenAI: GPT-5.2-Codex?

OpenAI: GPT-5.2-Codex has a context window of 400,000 tokens and can return up to 128,000 output tokens per response.

What are cheaper alternatives to OpenAI: GPT-5.2-Codex?

Cheaper models include Anthropic: Claude Opus 5 (batch) ($2.5 in / $12.5 out), Anthropic: Claude Opus 4.8 (batch) ($2.5 in / $12.5 out), Anthropic: Claude Opus 4.7 (batch) ($2.5 in / $12.5 out). See the full list on this page.

Is OpenAI: GPT-5.2-Codex free to use?

No. OpenAI: GPT-5.2-Codex is a paid model at $1.75 input / $14 output per 1M tokens. 20 free models are listed on the free models page.

Provider: openai · Model ID: openai/gpt-5.2-codex · Modality: text+image->text · Price snapshot October 21, 2026, refreshed daily. How we collect prices