OpenAI: GPT-5.3-Codex

GPT

Code

Paid

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...

Parameters

Context Window

400,000

tokens

Input Price

$1.75

per 1M tokens

Output Price

$14

per 1M tokens

Capabilities

Model capabilities and supported modalities

Performance

Reasoning

Excellent reasoning capabilities with strong logical analysis

Math

Coding

Specialized in code generation with excellent programming capabilities

Knowledge

Extensive knowledge base with broad coverage of topics

Modalities

Input Modalities

text,image,file

Output Modalities

text

LLM Price Calculator

Calculate the cost of using this model

Input Tokens (0.00000175/token)$0.002625

Output Tokens (0.00001400/token)$0.042000

Common Scenarios:

Input Cost:$0.002625

Output Cost:$0.042000

Total Cost:$0.044625

Estimated usage: 4,500 tokens

Monthly Cost Estimator

Based on different usage levels

Light Usage

$0.1575

~10 requests

Moderate Usage

$1.5750

~100 requests

Heavy Usage

$15.7500

~1000 requests

Enterprise

$157.5000

~10,000 requests

Note: Estimates based on current token count settings per request.

Last Updated: 2026/04/11