GPT-5.2 Codex

Overview

Most intelligent coding model optimized for long-horizon agentic coding tasks

Key Capabilities

• Code Generation — suited for tasks requiring code generation proficiency
• Code Refactoring — suited for tasks requiring code refactoring proficiency
• Agentic Coding — suited for tasks requiring agentic coding proficiency
• Debugging — suited for tasks requiring debugging proficiency
• Code Review — suited for tasks requiring code review proficiency

Recommended Use Cases

• Large Scale Code Migration
• Codebase Modernization
• Agentic Development
• Multi Repo Refactoring

Technical Specifications

• Context Window: 256K tokens
• Max Output Tokens: 66K tokens
• Open Weight: No
• Release Date: January 20, 2026

Pricing

$12/M input tokens, $48/M output tokens

Provider

GPT-5.2 Codex is developed by OpenAI. For the latest information, visit the official documentation.