GPT-5.1 Codex
gpt-5.1-codex
OpenAI's specialized code model — built for developers with a 200K token context for large codebase tasks.
Technical Specifications
| API Identifier | gpt-5.1-codex |
|---|---|
| Plans | Pro |
| Maximum Context | 200 000 tokens |
| Vision (images) | No |
| Native Web Access | No |
| Image Generation | No |
| Input Cost | $4.00 / M tokens |
| Output Cost | $16.00 / M tokens |
Overview
GPT-5.1 Codex is OpenAI's specialized code model, built from the ground up for software development tasks. With a 200K token context window, it can handle large codebases, complex refactoring tasks, and multi-file projects with ease. As part of OpenAI's Codex family, it brings deep code understanding and generation capabilities exclusively to the Pro plan on Mingo.
Strengths
Ideal Use Cases
Large Codebase Refactoring
Refactor and modernize large codebases with 200K tokens of context for full visibility.
Multi-file Development
Develop complex features spanning multiple files and modules within a single context.
Code Migration
Migrate codebases between languages, frameworks, or major versions with deep understanding.
Security Review
Identify security vulnerabilities across large codebases within a single comprehensive review.
Pricing
Related Models
Frequently Asked Questions
Use GPT-5.1 Codex with Mingo Pro
Mingo routes your most complex code tasks to GPT-5.1 Codex on the Pro plan for precise development assistance.
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