OpenAI
Codex CLI
A command-line interface for scripting and quick prototyping powered by OpenAI's Codex model.
Our editorial assessment as of Jun 4, 2026, based on the public sources listed below.
Rank in Coding Assistant
#4
Tier
A
Score
84.0
Underlying model
Codex
Strengths
- A lightweight tool ideal for developers who prefer command-line workflows for scripting and prototyping.
- Included with existing ChatGPT Plus or Pro subscriptions, avoiding separate licensing.
- Chosen by developers who want a trusted agent for larger, more complex jobs.
Considerations
- As a February 2026 launch, the tool is still maturing.
- Requires an active ChatGPT subscription, which can complicate team billing.
- Lacks the widespread IDE integration and mindshare of tools like Copilot.
Price
Included with ChatGPT Plus ($20/month) or Pro ($200/month)
Score breakdown
Performance
87.0
Reputation
84.0
Price
80.0
Recency
90.0
Verification status
Each field carries its own re-verification date. Amber means older than 90 days — treat those figures as stale until re-checked.
Sources
- Best AI Coding Agents for 2026: Real-World Developer ReviewsAccessed: 2026-05-26
- AI coding tools 2026: complete guide to every tool, pricing, and workflowAccessed: 2026-05-26
- LeadDevAccessed: 2026-04-21
- GitHub Community DiscussionAccessed: 2026-04-21