OpenAI Codex
What is OpenAI Codex?
Discover how OpenAI Codex can enhance your workflow
Key Capabilities
What makes OpenAI Codex powerful
Agentic sessions
Run tasks that plan change test and report while keeping artifacts and a clear action trail.
Pull requests
Tag the agent to summarize diffs point to risks and suggest focused changes.
Structure and tests
Upgrade patterns add tests and migrate modules with prompts tied to repository context.
API and CLI
Script repetitive edits and verifications using Codex in the Responses API and CLI.
Key Features
What makes OpenAI Codex stand out
- Agentic coding sessions in terminal IDE and web with logs and artifacts
- GPT 5 Codex models focused on code review generation and refactoring
- Pull request reviews with inline suggestions and explainers
- Tests and bug fixes drafted from failing outputs and traces
- CLI and extensions to connect repos private or cloud sandboxes
- Responses API access to Codex models for programmatic control
- Works with ChatGPT accounts across Plus Pro Team and Enterprise
- Structured action history for audit friendly workflows
Use Cases
How OpenAI Codex can help you
- Draft new features from structured tickets with commit level traceability
- Request refactors to modern patterns while preserving behavior
- Generate tests from examples and failing logs to raise coverage
- Review pull requests with inline reasoning and citation to changes
- Explain unfamiliar code paths during onboarding or audits
- Automate repetitive tasks like renames and boilerplate creation
- Spin up prototypes that call external APIs and verify outputs
- Use the API to script batch migrations with guardrails
Perfect For
software engineers data engineers platform teams educators and students who need guided coding help code review and safe automation inside familiar tools
Tags
Plans & Pricing
Included with ChatGPT Plus $20/month, Pro $200/month, or Business from $25/user/month
Visit official site for current pricing
Quick Information
Compare OpenAI Codex with Alternatives
See how OpenAI Codex stacks up against similar tools
Frequently Asked Questions
How do I get access and what is the starting price?
Was the old Codex API discontinued?
Can Codex run in my IDE or terminal?
Is there an API for automation?
How does Codex handle privacy and logs?
Similar Tools to Explore
Discover other AI tools that might meet your needs
Adrenaline
codingAI coding workspace focused on bug reproduction, debugging, and quick patches with context ingestion, runnable sandboxes, and step-by-step fix suggestions.
Amazon CodeWhisperer
codingAI coding companion from AWS now part of Amazon Q Developer, offering code suggestions, security scans and natural language to code across IDEs with a free tier and Pro.
Amazon Q Developer
codingAmazon Q Developer is AWS’s coding assistant that provides IDE chat, inline code suggestions, and security scanning, plus CLI autocompletions and console help, with a Free tier and a Pro tier that adds higher limits and advanced features for teams in AWS environments.
AI21 Labs
researchAdvanced language models and developer platform for reasoning, writing and structured outputs with APIs tooling and enterprise controls for reliable LLM applications.
Algolia
dataHosted search and discovery with ultra fast indexing, typo tolerance, vector and keyword hybrid search, analytics and Rules for merchandising across web and apps.
ASKYourPDF
productivityAI assistant for PDFs that supports chat search summarization OCR and export with a free tier and paid plans for higher page limits API access and team controls.