gpt-5-codex - Model Details

Model Details

Context Length: 400000 tokens
Release Date: 2025-08-07
Status: Active
Provided By: OpenAI

Where is gpt-5-codex a perfect fit?

GPT-5-Codex builds on OpenAI’s coding lineage, providing advanced programming assistance and reasoning capabilities with stronger accuracy, context handling, and language versatility than prior Codex models. Perfect Fit For: - Code generation, completion, and refactoring - API and script automation - Multi-language programming support (Python, JavaScript, Go, etc.) - Development tools, IDE assistants, and software documentation generation

Quick Model Estimate

Tokens Characters Words

Model

Provider

Input Tokens

(USD 0.0013 per 1000 tokens)

Output Tokens

(USD 0.0100 per 1000 tokens)

Your GPT-5 Cost Estimate

💰 Total Cost

USD 3.00

for 1000 input + 1000 output tokens

📥 Input (1000 × $0.0013) USD 1.5000

📤 Output (1000 × $0.0100) USD 1.5000

Cost Breakdown

📥 Input 50% 📤 Output 50%

Prices updated daily from official provider data.

Pricing

Provider ↕	Input Price (per 1K tokens) ↕	Output Price (per 1K tokens) ↕	Context Window ↕	Updated ↕
OpenAI	$0.0013	$0.0100	400,000 tokens	2025-10-21