Cracked AI Engineering

GPT-5-Codex

OpenAI

OpenAI's GPT-5 Codex AI model boasts a massive context window of 400,000 tokens and a generous output limit of 128,000 tokens. With capabilities in text input, vision, function calling, and advanced reasoning, this model is ideal for developers seeking powerful AI solutions. Priced at $1.25/M input and $10/M output tokens, GPT-5 Codex is a valuable tool for a wide range of applications, with training data up to September 30, 2024.

Key Specifications

Context Window

400K tokens

Max Output Tokens

128K tokens

Input Pricing

$1.25

per million tokens

Output Pricing

$10.00

per million tokens

Capabilities

  • Text Generation
  • Vision
  • Function Calling
  • Advanced Reasoning

Additional Details

Provider
OpenAI
Release Date
September 15, 2025
Advanced Reasoning
Supported
Supported Input Types
text, image

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