openai

OpenAI: GPT-5.2-Codex

The OpenAI GPT-5.2-Codex model supports both text and image inputs, with an impressive context length of 400,000 tokens and the ability to reason and integrate tools for more dynamic responses. It excels in handling complex tasks by leveraging its robust processing capabilities. This model is best suited for organizations requiring a versatile AI solution that can process extensive amounts of data and perform multiple modalities, including image analysis, alongside text. Given its blended benchmark score of 67.5 across one independent benchmark, it offers solid performance but may not be the top choice if you prioritize the highest scores. Considering its pricing at $1.75 per million input tokens and $14.0 per million output tokens, it provides a balanced option for those seeking effective AI tools without breaking the bank.

Quality Score
97/100
price + capability + benchmarks
Input Price
$1.75
per 1M tokens
Output Price
$14.00
per 1M tokens
Context Window
400,000
tokens

Benchmark results

Independent, published benchmarks. Blended score 67.5 across 1 benchmark, last refreshed 2026-08-13. How scoring works →

BenchmarkMeasuresScore
AI Index broad capability composite 68.0
Model ID
openai/gpt-5.2-codex
Vendor
openai
Released
January 2026
Tokenizer
GPT
Input Modalities
text, image
Output Modalities
text
Max Output
128,000 tokens
Tool Calling
✓ supported
Structured Output
✓ supported
Reasoning Mode
✓ supported
Vision
✓ accepts images
Audio
no
Moderated
no

What it costs in practice

Computed from the current $1.75/M input and $14.00/M output rates. Run your own numbers →

JobTokensCost
Summarize a 50-page report 30k in / 1.5k out $0.07
Classify 1,000 customer emails 500k in / 50k out $1.58
A month of a busy support chatbot 5M in / 2M out $36.75

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Quick answers

How much does OpenAI: GPT-5.2-Codex cost?
$1.75 per million input tokens and $14.00 per million output tokens.
What is OpenAI: GPT-5.2-Codex's context window?
400,000 tokens, roughly 600 pages of text in a single request.
Does OpenAI: GPT-5.2-Codex support tool calling?
It supports tool calling, structured output, a reasoning mode.
Can OpenAI: GPT-5.2-Codex process images?
Yes, it accepts image input.