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Verdict
OpenAI's coding agent for the terminal, code editors and the cloud. The Codex CLI is open source; Codex is available with ChatGPT plans and through the OpenAI API.
Score and rank
#6 of 60 with a score of 65.4 (November 2026 rankings)
Change since last month
No earlier ranking period to compare with November 2026 yet.
Alternatives
- Claude Code #1, score 84.7
- Devin #10, score 63.5
- Google Jules #21, score 54.8
Related news
- OpenAI Enhances Codex with Persistent Cloud Environments and Voice Control , TechCrunch
- OpenAI Launches ChatGPT Desktop App for Linux , TechCrunch
- OpenAI Launches ChatGPT Work: A Comprehensive Productivity Agent Powered by GPT-5.6 , Engadget
- Companies Force AI Tools to Use 'Caveman' Language to Slash Token Costs , 404 Media
- OpenAI Acquires Ona to Enable Secure Enterprise Deployment of Codex Agents , Forbes