GPT-5.2-Codex

Approved Data Classifications

This model is only approved for Open Data. When leveraging NaviGator AI’s suite offerings, please ensure you are selecting models that meet the compliance requirements in accordance with UF’s Data Classifications, grant awards or project specifications, and state and federal law.

Description

GPT-5.2-Codex is OpenAI's most intelligent coding model, optimized for long-horizon, agentic coding tasks. It is an upgraded version of GPT-5.2 for agentic coding tasks in Codex or similar environments, supports reasoning.effort levels (low, medium, high, and xhigh), and accepts text and image input with text output. The model provides a 400,000-token context window with up to 128,000 output tokens and an Aug 31, 2025 knowledge cutoff. Pricing matches GPT-5.2: $1.75 per 1M input tokens, $14 per 1M output tokens, and $0.175 per 1M cached input tokens.

Capabilities

Model	Knowledge Cutoff	Input	Output	Context Length	Cost (per 1 million tokens)
gpt-5.2-codex	Aug 31 2025	Text, Image, Pdf	Text	400,000	$1.75/1M input $14.00/1M output

info

• 1M represents 1 Million Tokens
• All prices listed are based on 1 Million Tokens
• Cached input: $0.175 per 1M tokens

Availability

Cloud Provider

Usage

curl

curl -X POST https://api.ai.it.ufl.edu/v1/chat/completions \
-H "Content-Type: application/json" \
-H "Authorization: Bearer <API_TOKEN>" \
-d '{
    "model": "gpt-5.2-codex",
    "messages": [
        {
            "role": "system",
            "content": "You are a helpful assistant."
        },
        {
            "role": "user",
            "content": "Write a haiku about an Alligator."
        }
    ]
}'

python

from openai import OpenAI

client = OpenAI(
    api_key="your_api_key",
    base_url="https://api.ai.it.ufl.edu/v1"
)

response = client.chat.completions.create(
    model="gpt-5.2-codex", # model to send to the proxy
    messages = [
        { "role": "system", "content": "You are a helpful assistant." },
        {
            "role": "user",
            "content": "Write a haiku about an Alligator."
        }
    ]
)

print(response.choices[0].message)

javascript

import OpenAI from 'openai';

const openai = new OpenAI({
  apiKey: 'your_api_key',
  baseURL: 'https://api.ai.it.ufl.edu/v1'
});

const completion = await openai.chat.completions.create({
    model: "gpt-5.2-codex",
    messages: [
        { role: "system", content: "You are a helpful assistant." },
        {
            role: "user",
            content: "Write a haiku about an Alligator.",
        },
    ],
});

console.log(completion.choices[0].message)

---

References

1. OpenAI GPT-5.2-Codex Model
   https://platform.openai.com/docs/models/gpt-5.2-codex/